Coffee Machine Brewing Mechanism with Automatic Capsule Ejection
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Solution Overview
Problem
Existing brewing mechanisms for coffee machines are overly complex and inconvenient to operate, with numerous assemblies and manual operation requirements.
Innovation Solution
A simplified brewing mechanism featuring an upper cover assembly connected to a lower main body via a hinge shaft and locking structure, incorporating sliding blocks, reset springs, and hooks to automatically eject the capsule into a receiving section, facilitated by a torsion spring and sealing rings for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a complex structure with multiple assemblies (handle, front cover assembly, rear cover assembly, connecting rod) is used to achieve automatic capsule ejection, then the capsule can be ejected automatically, but the device complexity increases and operation becomes inconvenient
Solution Approach 1:
The brewing mechanism is divided into two main functional modules: the upper cover assembly and the lower main body. This segmentation allows each module to have a specific function while reducing the overall number of assemblies. The upper cover assembly contains the ejection mechanism, while the lower main body houses the brewing chamber and receiving section, eliminating the need for multiple separate assemblies.
Solution Approach 2:
The invention combines the ejection mechanism and the cover structure into a single integrated upper cover assembly. The sliding blocks, hooks, and springs are merged into this one assembly, which rotates as a unified structure to accomplish both sealing and ejection functions, thereby reducing device complexity.
2Reliability
If multiple assemblies with manual operation (front cover assembly, rear cover assembly, connecting rod) are used, then the mechanism can fulfill sealed engagement and capsule ejection, but the ease of operation deteriorates due to manual operation requirements
Solution Approach 1:
The upper cover assembly is designed to automatically perform both sealing and ejection functions through its own rotational motion. The sliding blocks and hooks within the assembly automatically engage with the capsule and ejection path, eliminating the need for separate manual operations to achieve sealed engagement and capsule ejection.
Solution Approach 2:
The upper cover assembly transitions from a static structure to a dynamic rotating component. This dynamic motion allows the assembly to automatically achieve sealed engagement during rotation and subsequently eject the capsule, converting manual multi-step operations into a single automated rotational action.
3Extent of automation
If guiding slots and fixing shafts are added to enable straight movement of cover assemblies, then the capsule can be ejected, but the device complexity increases
Solution Approach 1:
The upper cover assembly serves multiple functions simultaneously: it seals the brewing chamber, guides the ejection path, and ejects the capsule. The sliding blocks within the assembly provide both sealing contact and guiding motion, eliminating the need for separate guiding slots and fixing shafts in the lower main body.
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 mechanism provides a simple, safe, and reliable operation with automatic capsule ejection, enhancing user convenience and reducing complexity.
Implementation Method 1
one end of the upper cover assembly is connected with one end of the lower main body by a hinge shaft
Implementation Method 2
The hinge shaft connecting the upper cover assembly and the lower main body is provided with a torsion spring
Implementation Method 3
A left reset spring and a right reset spring are respectively provided within the left sliding block and the right sliding block
Implementation Method 4
an inlet sealing ring is provided on a contacting surface between the inlet piercing needle and the upper cover assembly; an outlet sealing ring is provided on a contacting surface between the bottom piercing needle and the lower main body
Data Source
AI summary
The present invention relates to a brewing mechanism for coffee machine, comprising an upper cover assembly (2) and a lower main body (16). The upper cover assembly (2) comprises an inlet piercing needle (9) fixed in the upper cover assembly and a bottom piercing needle (14) fixed in the lower main body, with the inlet piercing needle connected with an inlet of a coffee machine. The upper cover assembly (2) also comprises a left sliding block (3) and a right sliding block (3.1) arranged within sliding slots respectively provided at a left side and a right side of the upper cover assembly, with the left sliding block and the right sliding block capable of sliding along the sliding slots. A left reset spring (4) and a right reset spring (4.1) are respectively provided within the left sliding block and the right sliding block. A left fixing sheet (5) and a right fixing sheet (5.1) which are fixed on the upper cover assembly are respectively provided at an outer side of the left sliding block and an outer side of the right sliding block. A left hook (3.2) and a right hook (3.3) are respectively provided at an inner side of the left sliding block and an inner side of the right sliding block. The left hook and the right hook are capable of hooking two sides of the capsule, and automatically hooking out the capsule from the brewing chamber when the upper cover assembly rotates, making the capsule fall into the capsule receiving plate. The present invention has simple structure, convenient operation, high safety and reliable performance.