Coffee Press Filter with Integrated Structure to Reduce Spare Parts
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Solution Overview
Problem
Existing coffee press filters require frequent replacement of filter paper, leading to increased use costs, resource waste, and environmental pollution, and have a complex structure with numerous spare and accessory parts.
Innovation Solution
A simplified coffee press filter design integrates key components, reducing spare parts from five to three, using a filter pressing cylinder body, push rod, and bracket with a tubular water injection cavity, filtering cup, and pressing cover, featuring a tower-type water injection column and flow guiding convex ribs, and a sealing ring for reduced leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter paper is used for coffee filtration, then filtration function is achieved, but use cost increases and environmental pollution occurs due to frequent replacement
Solution Approach 1:
The patent replaces disposable filter paper with a reusable metal filter screen that can be cleaned and reused multiple times. The filter screen is designed to be detachable for easy cleaning, allowing coffee residues to be removed and the screen to be reused, thereby recovering the filtration component instead of discarding it after single use.
Solution Approach 2:
The patent inverts the disposable concept by creating an inexpensive, durable metal filter screen that replaces expensive disposable filter paper. The metal screen is designed to be simple in structure and low in material cost, while providing long-term reusable service, effectively reversing the economic and environmental model of disposable filters.
2Loss of substance
If reusable filter structure is adopted, then resource waste is reduced, but structure complexity increases with more spare and accessory parts
Solution Approach 1:
The patent combines the filter screen, pressing mechanism, and cup structure into an integrated assembly. The filter screen is positioned within the pressing cup, and the pressing rod directly acts on the coffee grounds through the screen, merging multiple functions into a unified structure that reduces the number of separate components and accessory parts.
Solution Approach 2:
The pressing cup serves multiple functions: it contains the coffee grounds, supports the filter screen, and acts as the brewing chamber. The pressing rod simultaneously compresses the coffee grounds and filters the brewed coffee through the screen. This multi-functionality reduces the need for separate dedicated components for each function.
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 enhances assembly convenience, reduces production and packaging costs, simplifies user assembly, and facilitates easier cleaning while maintaining efficient coffee brewing and minimizing spare parts, thus reducing waste and pollution.
Implementation Method 1
multiple radially extended flow guiding convex ribs are uniformly distributed on the bottom surface, and the flow guiding convex ribs are uniformly distributed along a circumferential direction of the liquid outlet and extended to the inner wall of the accommodating cavity
Implementation Method 2
the pressing cover is provided with a plurality of water outlets communicated with the brewing cavity and the water injection cavity
Data Source
AI summary
The disclosure discloses a coffee press filter. The coffee press filter includes a filter pressing cylinder body, a filter pressing push rod and a filter pressing bracket, the filter pressing cylinder body is provided with a tubular water injection cavity, one end of the water injection cavity is an open end, the filter pressing bracket is internally provided with an accommodating cavity, the accommodating cavity is internally provided with a filtering cup, the other end, opposite to the open end, of the water injection cavity is integrally provided with a pressing cover, and the pressing cover is provided with a plurality of water outlets. The coffee press filter is integrally combined by this structure, thereby the original five spare and accessory parts are reduced to three spare and accessory parts, and the same function is achieved, a production cost may be reduced, and cleaning is easier after use.