Elastic Dispensing Nozzle Mechanism for Clean Sealed Fluid Delivery
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Solution Overview
Problem
Existing fluid product dispensing systems face issues with contamination and drying out due to open distribution ports, and complex, expensive designs that hinder design possibilities and require multiple components.
Innovation Solution
A dispensing head with a manually operable pusher and an elastic nozzle that switches between closed and open positions based on mechanical stress, using opposing forces from an insert and pusher lugs to ensure sealing and minimize friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the distribution port is permanently open, then the product can be dispensed continuously, but the nozzle dries out and becomes contaminated between uses
Solution Approach 1:
The nozzle transitions from a static open state to a dynamic state that opens only when needed. The elastic material allows the nozzle to deform and open under pusher actuation while automatically returning to a closed sealed position when not in use, eliminating the permanent open port problem.
Solution Approach 2:
The nozzle's physical state changes from closed to open through deformation of the elastic material. This parameter change is controlled by the pusher mechanism, allowing the nozzle to be sealed during storage and opened only during dispensing operations.
2Object-affected harmful factors
If a slot nozzle is used that opens with product pressure, then the nozzle remains sealed at rest, but the nozzle cannot be perfectly sealed to allow priming and air escape
Solution Approach 1:
The pusher acts as an intermediary mechanism that provides controlled access for priming. It mechanically opens the nozzle to allow air and product to be expelled during initial use, then returns to seal the nozzle completely, solving both the sealing and priming requirements.
Solution Approach 2:
The nozzle employs dynamic opening controlled by the pusher mechanism rather than relying on product pressure alone. This allows complete sealing at rest while enabling controlled opening for priming and normal operation through mechanical actuation.
3Object-affected harmful factors
If a mechanically controlled nozzle with linkage mechanism is used, then the nozzle can be sealed completely, but the design becomes complex and expensive
Solution Approach 1:
The nozzle is made of elastic material that deforms to open and close the distribution port. This flexible membrane approach replaces complex rigid linkage mechanisms with a simple elastic element that provides complete sealing when closed and opens under controlled deformation.
Solution Approach 2:
The nozzle utilizes deformation of elastic material to change its state from closed to open. This parameter change approach eliminates the need for complex mechanical linkages, needles, and multiple components, achieving complete sealing with a simple, inexpensive elastic structure.
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 solution provides a cost-effective, simple design that prevents contamination and drying, maintains product integrity, and reduces actuation force while allowing for varied design possibilities.
Implementation Method 1
the nozzle switches from a closed position in which said nozzle is sealed to an open position allowing the dispensing of said product by deformation of said nozzle under the effect of a release of a stress exerted by the pusher
Data Source
AI summary
Dispensing head (2) of a fluid product comprising:a manually actuable pusher (5) in relation to an insert,an elastic dispensing nozzle (10).When the pusher (5) is moved, the nozzle (10) switches from a closed position to an open position by deformation of the nozzle (10) under the effect of a release of a stress exerted by the pusher (5). The pusher (5) comprises a stop (54) and the insert (6) is provided with two deformable lugs (60) which cause a force on the pusher (5) such that the insert (6) exerts on the nozzle (10) a stress in the opposite direction to a stress exerted by the stop (54) on the nozzle (10), each lug (60) extending from a body (6a) of the insert (6) and having a distal end (60a) of the body, the said ends being surmounted and connected to each other by a connecting element 70.