Retractable Tap Lever Mechanism for Beverage Container
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Solution Overview
Problem
Existing retractable taps for beverage containers are prone to misalignment issues, leading to leaks and operational difficulties, and there is a need for an improved design that ensures easy and reliable dispensing.
Innovation Solution
A retractable tap design featuring an inner and outer sleeve with a pivoting handle mechanism, a cam guide for easy operation, and a sealing system to prevent misalignment, ensuring smooth fluid flow and intuitive use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a push button is used to open the valve inside the inner sleeve, then the tap can be operated easily, but the push button can become misaligned and prevent the valve from closing properly causing leaks
Solution Approach 1:
The patent replaces the push button mechanism with a lever handle that pivots about an axis. This mechanical substitution transforms the actuating motion from linear pressing to rotational pivoting, which inherently provides better alignment control through the pivot axis constraint, eliminating the misalignment problem while maintaining ease of operation.
Solution Approach 2:
The patent introduces a cam guide mechanism that dynamically guides the valve plunger during the opening and closing process. The cam guide ensures proper alignment and timing of the valve closure, preventing misalignment issues while enabling smooth operation. The dynamic guidance system adapts to the motion sequence, ensuring reliable sealing.
2Volume of moving object
If the tap is recessed into the wall of the beverage container, then space is saved, but the tap mechanism becomes compact and complex
Solution Approach 1:
The patent employs a nested structure where the inner sleeve containing the valve mechanism is positioned within the outer sleeve. The handle is nested within the inner sleeve, and the entire assembly fits into the beverage container wall opening. This nesting arrangement achieves compact space utilization while organizing the complex components in a structured, manageable hierarchy.
Solution Approach 2:
The tap is divided into distinct functional segments: the outer sleeve providing structural housing, the inner sleeve containing the valve mechanism, and the handle for actuation. This segmentation allows each component to be optimized independently for its specific function while maintaining overall compactness when assembled together.
3Ease of operation
If a lever handle pivoting about an axis orthogonal to the longitudinal axis is used, then the tap is easy to operate like restaurant taps, but the actuating mechanism becomes more complex
Solution Approach 1:
The patent introduces a cam guide as an intermediary element that mediates between the pivoting handle and the valve plunger. The cam guide translates the rotational pivoting motion of the handle into the linear reciprocating motion required by the valve plunger, while also providing dynamic alignment guidance. This intermediary simplifies the connection between the handle and valve mechanisms.
Solution Approach 2:
The patent replaces a direct linear connection between the handle and valve with a pivoting mechanism connected through a cam guide. This mechanical substitution transforms the actuation method from direct pushing to pivoting with guided motion, achieving intuitive operation similar to restaurant taps while the cam guide manages the complexity of motion transformation.
Data Source
Figure 1a~1b
Figure 1c
Figure 2a~2b
AI summary
A tap comprising an outer sleeve (2) and an inner sleeve (3) which is movable along the longitudinal axis (L) within the outer sleeve (2) and has a handle (4) at a first end (3a) of the inner sleeve (3). In a non-activated state of the tap (1), the handle (4) rests against a first end (2a) of the outer sleeve (2). In an activated state, the handle (4) is spaced from the first end (2a) of the outer sleeve (2) and, together with the outer sleeve (2), defines a channel (8). The inner sleeve (3) has a valve seat (10) with a valve opening (11) and a dispensing opening (9).The tap (1) has an actuating device arranged on the handle (4) which interacts with a closure element (12). In the activated state of the tap (1), the closure element (12) can be moved by means of the actuating device between a closed position, in which the closure element (12) closes the at least one valve opening (11), and an open position, in which the closure element (12) opens the at least one valve opening (11). The actuating device is a handle lever (13) which is arranged adjacent to the handle (4) and is pivotable about a pivot axis (S) orthogonal to the longitudinal axis (L). The handle lever (13) has an actuating section (13a) which extends into the inner sleeve (3) and engages with a valve plunger (14) which carries the closure element (12). The inner sleeve (3) has a guide element (15) by which the valve plunger (14) is guided along the longitudinal axis (L).