Pivoting Liquid Dispenser Button for Misaligned Pressing
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Solution Overview
Problem
Conventional liquid dispensers require precise alignment of the pressing force to avoid damage or sticking, which not all users can achieve due to the fixed alignment of the piston and button, making the operation cumbersome.
Innovation Solution
A liquid dispenser design featuring a button with two parallel elastic elements and axles that pivot within axle holes, allowing the button to pivot freely and ensuring easy pressing operation, combined with a nozzle system that includes a check valve and springs for controlled fluid dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the piston and button are fixed together with precise alignment, then the valve operation is reliable, but the ease of operation deteriorates because users must align force precisely along the longitudinal axis
Solution Approach 1:
The button is changed from a fixed rigid structure to a pivotable dynamic structure. The button can rotate about a pivot axis during pressing, allowing the pressing direction to deviate from the longitudinal axis without causing misalignment damage. This dynamic adaptation resolves the contradiction by making the system tolerant of varying user pressing angles while maintaining reliable valve operation.
Solution Approach 2:
A pivot mechanism serves as an intermediary between the button and the piston. This pivot axis acts as a mediator that decouples the button's pressing motion from the piston's linear motion, allowing the button to pivot freely while still transmitting force effectively to operate the valve reliably.
2Ease of operation
If the button is made pivotable to improve ease of operation, then the ease of operation improves, but the device complexity increases due to additional pivot mechanism
Solution Approach 1:
The pivot mechanism is merged with the existing button structure rather than being a separate added component. The pivot axis is integrated into the button assembly, combining the pressing function and the pivoting function into a single unified structure, thereby minimizing the increase in device complexity.
Solution Approach 2:
The button structure serves multiple functions: it provides the pressing surface for user operation, acts as a lever to amplify force, and incorporates the pivot mechanism for directional flexibility. This multi-functionality reduces the need for additional separate components, keeping the overall device complexity low while achieving improved ease of operation.
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 simplifies the dispensing operation by allowing users to press the button easily without aligning forces, while the nozzle system ensures controlled and efficient fluid flow, preventing leakage and ensuring consistent dispensing.
Implementation Method 1
two parallel elastic elements coupled to the button to return the button in the initial position after the button is pressed and released
Implementation Method 2
a check valve mounted in a bottom of the upper opening of the guiding tube
Implementation Method 3
A first spring has a lower end abutting the closed lower end of the receptacle and an upper end abutting the check valve
Data Source
AI summary
A liquid dispenser includes a pressing unit is pivotably connected to a base received in a body. A guiding tube in communication with a container is movably connected to an engagement cap. An inner tube includes a passage in communication with a passage of an outer tube. The inner tube further includes at least one hole in communication with the passage of the inner tube and a passage of the guiding tube. A mouth includes a tube and an end cap having an aperture. The tube includes two rods movably engaged in two sliding grooves of the pressing unit. The tube is coupled to the outer tube, with the aperture of the end cap in communication with the passage of the outer tube. When the pressing unit is pressed, the transverse rods are driven by the sliding grooves to move upward, causing dispensation of a fluid via the aperture.