Rotating Insert Nozzle for Multifunction Liquid Dispensing
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Solution Overview
Problem
Existing multifunction dispensing devices for liquids are complex and difficult for users to operate, lacking simplicity in structure and functionality for selecting different jet types such as continuous and nebulized sprays or foams.
Innovation Solution
A manually operated dispensing device with a tang, nozzle, and insert configuration that allows for easy selection between spray and foam modes through a simple rotational mechanism, ensuring consistent dispensing direction and position, with anti-rotation constraints and intuitive user indicators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple jet types are dispensed from different openings on the nozzle, then the device can provide multiple dispensing functions (continuous jet, nebulized jet, foam), but the device complexity increases and becomes more difficult for users to operate
Solution Approach 1:
The patent implements multi-functionality by providing a single nozzle that can dispense multiple jet types (continuous jet, nebulized jet, and foam) through a rotatable insert with different opening configurations. The insert can be rotated to align different openings with the nozzle opening, allowing one nozzle structure to perform multiple dispensing functions without requiring separate nozzles for each jet type.
Solution Approach 2:
The patent applies dynamics by making the insert rotatable relative to the nozzle. This rotational movement allows dynamic switching between different jet types without changing the nozzle itself. The user can rotate the insert to different angular positions to select the desired dispensing mode, providing adaptability while maintaining a relatively simple fixed nozzle structure.
2Adaptability or versatility
If multiple jet types are dispensed from different openings on the nozzle, then the device can provide multiple dispensing functions, but the ease of operation decreases and becomes difficult for users to select different jet types
Solution Approach 1:
The patent applies visual indicators (analogous to color changes principle) by providing graphical indications on the insert that become visible at specific angular positions during rotation. These indications help users identify when the insert is positioned for a particular jet type, making the operation more intuitive and easier to control by providing visual feedback on the selected dispensing mode.
3Adaptability or versatility
If a complex structure is used to enable multifunction dispensing, then multiple jet types can be achieved, but the manufacturing cost increases
Solution Approach 1:
The patent applies nesting by placing the rotatable insert inside the nozzle structure. The insert is positioned within the nozzle body and rotates within the fixed nozzle opening. This nested configuration allows the multifunctional capability to be integrated into the existing nozzle structure without requiring a completely separate complex assembly, thereby reducing manufacturing costs compared to providing multiple external nozzles or attachments.
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 device is significantly simplified for user operation, maintaining structural simplicity and cost-effectiveness while ensuring consistent and intuitive selection of liquid jet types, always dispensing in the same position.
Implementation Method 1
a piston sealed so as to slide in the pumping chamber
Implementation Method 2
The front wall 32 has, in addition, at least one channel 34, made on the inner face 32a of the front wall 32, and a through hole 36 through the thickness of the front wall 32
Data Source
AI summary
A trigger-operated dispensing device for a liquid comprising a tang (12) applied to the exit duct, a nozzle (30) applied to a tang, an insert (60) applied to the nozzle (30), axially bound and rotatable around the dispensing axis (X), provided with two openings (62, 64) for dispensing the liquid as a spray or as a foam. The insert (60) comprises an obturator (68), shaped to close/open the device.