Stop Valve Core Connection Structure for Precise 90° Positioning
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Solution Overview
Problem
Conventional temperature control valves in bathroom equipment face difficulties in accurately limiting and rotating valve cores to specific positions, leading to troublesome operation and inability to precisely control water flow.
Innovation Solution
A valve core connection structure with limitation structures and locking sleeves allows for easy rotation and precise positioning of valve cores within 90 degrees, using limiting loops and indicators to clearly denote open and closed positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a C retainer is used to limit the valve core, then the valve core can be retained on the connector, but the operation becomes troublesome and the valve core cannot be limited on a desired angle
Solution Approach 1:
The limitation structure is divided into multiple segments including a limiting loop with opening/closing capability, positioning blocks with indicators, and locking sleeves. This segmentation allows the system to provide reliable retention while enabling easy operation through visual indicators and modular components that can be independently adjusted.
Solution Approach 2:
The patent introduces an intermediary positioning block with indicators that mediates between the valve core and the limiting loop. This intermediary component provides visual feedback about valve core position and enables precise angular limitation without requiring complex manual adjustment, thus improving ease of operation while maintaining reliable retention.
2Device complexity
If the valve core is not limited on opening and closing positions, then the structure is simpler, but the valve core cannot be rotated accurately and quickly to desired positions
Solution Approach 1:
The patent employs visual indicators (analogous to color/visual changes) on the positioning block that change orientation or visibility based on valve core position. These indicators provide clear visual feedback for opening and closing positions, enabling accurate positioning without complex mechanical stops or elaborate limiting mechanisms, thus maintaining structural simplicity while achieving high positioning precision.
3Productivity
If the valve core can be quickly rotated to opening and closing positions, then the operation efficiency is improved, but the fabrication cost may increase
Solution Approach 1:
The patent implements preliminary action by pre-positioning the positioning blocks and indicators on the valve core assembly during manufacturing. The limiting loop and locking sleeves are designed with predetermined engagement features that automatically align and lock the valve core into correct positions. This preliminary configuration enables rapid operation during use while avoiding complex assembly procedures or expensive precision machining, thus achieving high productivity without significantly increasing fabrication cost.
Data Source
AI summary
A valve core connection structure of a valve assembly comprising: a body, two stop valve sets, two limitation structures, and two locking sleeves. The body includes a holder, a cold-water inflow connector, a hot-water inflow connector, a first outflow connector, a second outflow connector, a cold-water inflow seat, and a hot-water inflow seat. Each stop valve set includes a valve core, a limiting loop, a defining structure, and a locating structure. Each limitation structure is defined between a peripheral fence of each second accommodation cavity and the limiting loop so that the limiting loop is retained on the peripheral fence of each second accommodation cavity, thus limiting rotation of the limiting loop. Each locking sleeve is screwed on the cold-water inflow seat and the hot-water inflow seat so that the limiting loop and the valve core are limited in each second accommodation cavity.