Filter Cartridge Valve Puller for Cross-Compatible Water Filters
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Solution Overview
Problem
Existing water filter devices are limited by the need for specific, matching filter cartridges that restrict the selection and flexibility of filter materials, making it difficult for users to replace worn-out cartridges.
Innovation Solution
A filter cartridge design featuring a valve puller with an actuation means that can be adapted to different valve bodies, allowing for easy opening of the flow channel and enabling the use of various filter cartridges in different water filter systems, either with or without a valve in the flow channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a valve with helical structures is used to open the flow channel when a filter cartridge is inserted, then the valve can be opened automatically, but the selection of filter cartridges is significantly limited
Solution Approach 1:
The valve puller is designed with a universal interface that can interact with different valve body designs through a standardized receiving hole and grip edge configuration. This allows a single valve puller design to work with multiple valve types, enabling filter cartridges to be used across different water filter device configurations without requiring cartridge-specific valve mechanisms
Solution Approach 2:
The valve activation function is separated from the filter cartridge housing and integrated into the valve puller component. This segmentation allows the valve puller to be the universal adapting element that interfaces between the filter cartridge and various valve bodies, while the rest of the filter cartridge structure remains unchanged
2Reliability
If a valve body with specific helical structures is required to open the valve, then the valve opening mechanism is reliable, but the filter cartridge design becomes complex and less adaptable
Solution Approach 1:
The valve puller acts as an intermediary component between the filter cartridge and the valve body. It features a receiving hole that accommodates the actuation section of the valve body and a grip edge that provides reliable mechanical interaction. This intermediary design simplifies the filter cartridge structure while maintaining reliable valve activation through the standardized interface
Solution Approach 2:
Instead of integrating complex helical structures into the filter cartridge to activate the valve, the invention inverts the approach by designing the valve puller to work with simplified valve bodies. The valve puller's grip edge and receiving hole configuration enables it to interact with various valve actuation sections, reducing filter cartridge complexity while maintaining activation reliability
Data Source
AI summary
What is proposed is a filter cartridge for a water filter device comprising an inflow funnel, which comprises a valve, which is arranged in a flow channel and which has a valve body (304), which can be moved in the axial direction, in order to close the flow channel in a first position of the valve body and to release it in a second position. The filter cartridge has a housing, which comprises an inflow opening for unfiltered raw water on an upper side and an outflow opening for filtered water on a lower side and which contains a filter medium. An inversion (402) is arranged on a lower side of the housing. A valve puller (502) is arranged in the inversion, which valve puller has a main part (505) and an actuation means (514), which is molded thereon and which extends away from the main part (505) in the axial direction and which comprises a receiving hole, which is delimited by a grip edge (509) and which is formed so that it allows the reception of an actuation section (606) of the valve body (304).