Dispensing Head Lever Locking Mechanism
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Solution Overview
Problem
Existing dispensing devices for fluids, such as cleaning agents or pharmaceuticals, often lack a simple, reliable, and cost-effective mechanism for safe operation and transportation, as they can accidentally dispense fluid during transport due to lack of secure actuation mechanisms.
Innovation Solution
A dispensing device with a flexible bellows pump and an operating lever that secures the actuating arm in a position to prevent accidental dispensing, featuring a locking mechanism that prevents fluid leakage during transport, eliminating the need for additional security parts and reducing waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple dispensing device design is used, then manufacturing cost is reduced, but accidental dispensing during transport occurs
Solution Approach 1:
The locking mechanism is integrated into the actuating lever assembly itself, merging the safety function with the existing actuation mechanism. The detent feature and cam surface are built into the actuating lever, eliminating the need for separate locking components while preventing accidental dispensing during transport.
2Reliability
If additional security parts are added to prevent accidental dispensing, then reliability is improved, but device complexity increases
Solution Approach 1:
The actuating lever provides its own locking function through integrated detent features and cam surfaces. The mechanism locks itself in the retracted position without requiring external security components, maintaining simplicity while ensuring reliable prevention of accidental dispensing.
3Ease of operation
If the actuating lever is always accessible, then ease of operation is improved, but accidental activation during transport increases
Solution Approach 1:
The actuating lever is pre-locked in the retracted position by the detent mechanism during transport. This preliminary locking action prevents accidental activation before the device is intentionally activated by the user, while still allowing easy operation when needed by simply pressing the release button.
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 ensures safe and reliable operation by preventing fluid leakage during transport, enhancing user safety and reducing production costs through a simplified design that integrates security features within the device itself.
Implementation Method 1
a flexible bellows (5) for conveying the fluid (F)
Implementation Method 2
An inlet valve of the pump chamber is formed by an annular sealing lip that is pre-tensioned against a counter surface and thus seals against it
Data Source
Figure 1
Figure 2
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AI summary
The invention relates to a dispensing device (2) for dispensing a fluid. The dispensing device (2) comprises a pump device (4) for conveying the fluid from a container (3). The pump device (4) can be actuated preferably by means of an actuating lever (21) of the dispensing device (2) and/or is formed by a flexible bellows (5). Furthermore, a dispenser (1) for dispensing a fluid with a container (3) and a dispensing device (2) is disclosed.