Filter Cartridge Double Water-Stop Mechanism
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Solution Overview
Problem
Current filter cartridges in water filtering devices lack a water-stop function, causing water to leak out when detached, leading to inconvenience and unsatisfactory performance.
Innovation Solution
A filter cartridge design with a double water-stop function, incorporating an outer shell body, rotation body, and water channel main body, featuring compression springs, tight seal rings, and a check valve to prevent water leakage during detachment, ensuring water remains contained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the filter cartridge is detached for replacement, then the filter cartridge can be replaced, but the water remaining in the filter cartridge leaks out causing inconvenience
Solution Approach 1:
The patent applies preliminary action by equipping the filter cartridge with a water-stop function that automatically stops water flow before detachment occurs. The water-stop component is pre-positioned to block the water outlet channel, preventing water leakage during the detachment process. This resolves the contradiction by preparing the water-stop mechanism in advance, allowing both easy replacement and prevention of water leakage.
2Reliability
If a water-stop function is added to prevent water leakage, then water leakage is prevented, but the device structure becomes more complex
Solution Approach 1:
The patent employs a flexible water-stop component that can be made of elastomeric material, forming a simple yet effective sealing structure. This thin film or shell approach provides reliable water-stop capability without requiring complex mechanical systems, thus resolving the contradiction between reliability and structural complexity.
Solution Approach 2:
The water-stop function is extracted as a separate, dedicated component within the filter cartridge assembly. This modular approach allows the water-stop mechanism to be independently designed and optimized, providing reliable water leakage prevention while keeping the overall structure manageable and not excessively complex.
3Reliability
If the filter cartridge is designed with water-stop capability, then water leakage is prevented, but the design becomes more complicated
Solution Approach 1:
The filter cartridge is segmented into functional modules, with the water-stop capability as a distinct component. This segmentation allows for standardized manufacturing of individual parts that can be easily assembled together, resolving the contradiction between achieving reliable water containment and maintaining ease of manufacture.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design effectively prevents water from leaking during filter cartridge removal, enhancing user convenience and maintaining product functionality while being simple and compact for easy assembly.
Implementation Method 1
a first compression spring, disposed between a water input end of the first water outlet and the filter cartridge cover; a second compression spring, disposed between a water input end of the second water outlet and the filter cartridge cover
Implementation Method 2
a first tight seal ring, disposed around the water input end of the first water outlet, to work in cooperation with a perimeter wall of a water output end of the first water outlet; a second tight seal ring, disposed around the water input end of the second water outlet, to work in cooperation with a perimeter wall of a water output end of the second water outlet
Data Source
AI summary
A filter cartridge having a double water-stop function, that comprises: a filter cartridge main body, a rotation body, and a water channel main body. The filter cartridge main body includes: an outer shell body, a filter cartridge, a filter cartridge cover, a first water outlet, a second water outlet, a first compression spring, a second compression spring, a first tight seal ring, a second tight seal ring, a first water input port, a second water input port, a first water outlet channel, and a second water outlet channel. The rotation body includes: a first water channel, a second water channel, a third water channel. The water channel main body includes: a first water input hole, a first water output hole, and a second water output hole.