Integrated Locking Mechanism for Liquid Atomizer Actuator
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Solution Overview
Problem
Small atomizers lack an integral locking mechanism to prevent unintentional dispensing of liquids, necessitating the use of a separate cap for prevention.
Innovation Solution
A closed locking mechanism is integrated into the atomizer, utilizing a cap with locking flanges and a locking block that interacts with a piston unit to prevent accidental dispensing by allowing intentional lateral movement and rotation, eliminating the need for a separate cap.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate cap is used to prevent unwanted dispensing, then liquid containment is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is merged with the cap structure itself. The cap includes integrated locking flanges that engage with a locking block on the actuator, combining the protective cap function with the locking function into a single integrated component rather than separate parts.
Solution Approach 2:
The locking mechanism is self-activating through the normal operation of the atomizer. When the actuator is pressed to dispense liquid, the locking block automatically engages with the locking flanges on the cap, providing automatic locking without requiring separate user action.
2Device complexity
If an integral locking mechanism is integrated into the atomizer, then device complexity is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The locking mechanism is segmented into distinct functional elements: locking flanges on the cap, a locking block on the actuator, and a tab with stop channel. This segmentation allows each component to be manufactured separately with standard tolerances and then assembled, reducing the need for high-precision integral manufacturing.
Solution Approach 2:
The locking mechanism utilizes rotational movement as an additional dimension of operation. The actuator can rotate relative to the cap to engage or disengage the locking flanges, adding a rotational degree of freedom that simplifies the locking engagement process and reduces precision requirements for linear dimensional tolerances.
3Ease of operation
If the actuator rotates to engage locking flanges, then ease of operation is improved, but reliability may worsen due to potential inadvertent rotation
Solution Approach 1:
The locking flanges are positioned and dimensioned to require a specific rotational movement to engage the locking block. This preliminary geometric constraint prevents inadvertent rotation during normal use, as the locking flanges must be deliberately rotated to a specific position to disengage the locking block.
Solution Approach 2:
The locking flanges and locking block are designed with asymmetric geometries that allow rotation in only one direction for engagement. The tab extends into a stop channel that limits rotation to a specific angular range, preventing over-rotation and ensuring the locking mechanism can only be activated through intentional asymmetric movement.
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 integrated locking mechanism effectively prevents unwanted dispensing of liquids, enhancing user convenience and eliminating the need for a separate cap, while maintaining ease of assembly and use.
Implementation Method 1
Release of the external downward force to the pump permits the spring to expand under its restorative force, and to thereby return the pumping mechanism to its extended position
Implementation Method 2
the application and removal of the external force being sufficient to generate pressure changes in the liquid chamber of the dispenser to alternately cause liquid dispensation and intake of liquid
Implementation Method 3
movement of the pump against a spring force causes the piston to move in the liquid chamber to thereby exert a compression force on the liquid in the chamber
Implementation Method 4
Such force causes the liquid to move through a liquid passage to the spray outlet
Implementation Method 5
Liquid forced under pressure through a spray nozzle generates a dispersed mist of very small liquid droplets
Data Source
AI summary
A liquid atomizer has an actuator, cap, piston unit and body. The actuator consists of an exterior casing, a locking block within the case, a nozzle and a piston receiving area that is in liquid communication with the nozzle. The cap has a pair of locking flanges separated by a locking channel dimensioned to receive the locking block as the actuator is depressed. A pair of stops, separated by a stop channel, prevent over rotation of the actuator. The piston unit has a piston whose proximal end has ribs and is dimensioned to be received within the ring containing piston receiving area in a juxtaposed manner. The dimensioning between the rings and the piston ribs permit disengagement, by the piston tilting under the rotational pressure enough to permit the actuator to lift slightly in order to clear the locking flanges.