Extraction Valve Push-in Bar Mechanism for Contaminant Isolation
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Solution Overview
Problem
Conventional extraction valves have complex internal structures with many components, making them difficult to repair and maintain, and are prone to failures due to contamination from dust and beverage droplets entering through the operation lever.
Innovation Solution
The extraction valve features a simple internal structure with a push-in bar and valve bodies that are moved back and forth using a cock, preventing contaminants and allowing for selective extraction of one or both beverages from a single extraction section, with a mechanism that includes a cylindrical trapezoidal main body, separate flow paths, and spring-loaded valve bodies for easy operation and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an operation lever is provided in a slide hole in the upper part of the valve main body, then the valve can be operated to extract beverages, but contaminants such as dust and droplets may enter the operation lever and cause failure
Solution Approach 1:
The operation lever is extracted from the internal structure and repositioned to the side of the extraction section. This separates the operating mechanism from the contamination-prone internal flow paths, allowing users to operate the valve without exposing internal components to contaminants.
Solution Approach 2:
A cock mechanism serves as an intermediary between the user's hand and the internal valve bodies. The cock transmits rotational motion to the push-in bar, which in turn moves the valve bodies, providing indirect control that protects internal components from direct contamination while maintaining operational control.
2Adaptability or versatility
If the internal structure includes multiple valves and flow paths for different beverages, then selective extraction is enabled, but the structure becomes complicated and difficult to repair
Solution Approach 1:
Multiple valve bodies are merged into a single integrated structure that can be simultaneously controlled by one push-in bar. The first and second valve bodies share common support portions and are actuated together through the push-in bar mechanism, reducing the number of independent components while maintaining the ability to selectively control different beverage flow paths.
Solution Approach 2:
The push-in bar serves multiple functions: it acts as a lever for the cock, a cam for actuating valve bodies, and a同步 mechanism for coordinating multiple valves. This multi-functional design reduces the need for separate actuation mechanisms for each beverage type, simplifying the overall structure while maintaining versatility.
3Adaptability or versatility
If multiple supply valves and flow paths are provided for undiluted and diluted solutions, then beverage variety is increased, but the number of components increases making maintenance difficult
Solution Approach 1:
The valve system is segmented into modular components: separate valve bodies for different beverages, independent flow paths, and a common actuation mechanism. This segmentation allows individual valve bodies or flow path components to be accessed and maintained separately while preserving the integrated actuation system, making repair and maintenance more manageable.
Data Source
AI summary
Extraction valve 100 includes main body section 10, first inflow port portion 11a, second inflow port portion 12a, extraction section 12, first flow path 11b, second flow path 12b, first valve body 13 and second valve body 14, push-in bar 15, and cock 18 connected to an end of push-in bar 15 and used to rotate push-in bar 15. One or both of first valve body 13 and second valve body 14 are moved back and forth on the basis of the rotation of push-in bar 15, and first flow path 11b is opened and closed by the back-and-forth movement of first valve body 13 and second flow path 12b is opened and closed by the back-and-forth movement of second valve body 14.