Bathroom Drain Valve Core Structure for Freeze-Free Drainage
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Solution Overview
Problem
Traditional drain valves for bathrooms face issues such as unstable valve cores due to water pressure, difficulty in connecting water pipes, and freezing in cold climates, leading to unsmooth drainage and operational failures.
Innovation Solution
A drain valve design featuring a combined valve inner and outer core with slide rails and rotating parts, ensuring stable fixation and precise control, along with thermal insulation to prevent freezing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional drain valve is used, then the structure is simple, but the valve core becomes unstable due to water pressure and shakes during use
Solution Approach 1:
The valve core is divided into an inner core and an outer core that can rotate relative to each other. The inner core contains the drainage passage and sealing ball, while the outer core provides structural support and stability. This segmentation allows each part to perform its specific function optimally while maintaining overall stability under water pressure.
Solution Approach 2:
The inner core is nested within the outer core, with the inner core rotatably mounted inside the outer core. This nested structure provides both stability (from the outer core) and functional movement (from the inner core rotation), resolving the contradiction between stability and operational capability.
2Ease of manufacture
If a traditional drain valve is used, then the manufacturing is simple, but the connection of outlet pipe is difficult due to valve core displacement
Solution Approach 1:
The outlet passage is pre-formed in the outer core with a fixed, stable position. The outer core's stable structure ensures that the outlet passage maintains its position during installation, allowing for easy and precise connection of the outlet pipe without worrying about valve core displacement.
3Productivity
If a traditional drain valve is used, then the structure is simple, but drainage becomes unsmooth due to valve core shaking
Solution Approach 1:
The inner core is designed to rotate dynamically within the outer core to control the drainage process. This rotational movement allows for smooth opening and closing of the drainage passage, enabling controlled water flow and complete drainage without shaking or instability.
4Object-affected harmful factors
If a traditional drain valve is used, then the structure is simple, but the valve freezes in cold climate
Solution Approach 1:
The drainage passage is designed to extend completely through the valve structure, with openings at both ends. This extraction of the passage through the entire valve body allows for complete drainage and prevents water from being trapped inside the valve, eliminating the freezing problem while maintaining structural simplicity.
Data Source
AI summary
A drain valve comprises a valve shell and a valve core which comprises an inner core and an outer core. In the process of draining and closing, the outer core and the inner core of the valve is rotated through operating the handle nut and a rotating part, so as to realize the accurate control of the position of the valve core. When draining water, the first through hole and the second through hole are aligned, and then water is drained to the water outlet pipe through the outlet of the valve core, so that the drainage is smooth; when closed, the valve core is completely pushed into the interior, and the internal water is squeezed out, thus reducing the possibility of residual water, effectively preventing the drain valve from being frozen, and ensuring the normal use of the drain valve in cold climates.