Dispenser system and a method for operating a dispenser system
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Solution Overview
Problem
Existing liquid dispensers lack simple and reliable mechanisms to adjust the volume of liquid dispensed, particularly in systems with manual actuators, which is necessary for different types of liquids and environments.
Innovation Solution
A dispenser system with a manual actuator featuring an adjuster that can be moved between positions to limit the displacement of the actuator, defining predetermined maximum dose volumes, allowing control over the liquid volume dispensed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a manual actuator is used to dispense liquid with a fixed displacement, then the device structure is simple, but the dose volume cannot be adjusted for different liquids and environments
Solution Approach 1:
The patent applies the dynamics principle by making the actuator displacement adjustable through a movable limiting element (15) that can be positioned at different locations along the actuator (9) path. This allows the dose volume to be dynamically adjusted between low and high settings by changing the displacement distance of the actuator, thereby resolving the contradiction between adaptability and device complexity.
2Quantity of substance
If the actuator displacement is increased to dispense higher dose volumes, then more liquid can be dispensed, but the pump stroke length must be increased which complicates the pump design
Solution Approach 1:
The patent applies segmentation by separating the dose volume control function from the pump stroke mechanism. The limiting element (15) is positioned to control the actuator (9) displacement independently, allowing the pump (3) to operate within its fixed stroke length capabilities while still achieving variable dose volumes through controlled actuator movement distance.
3Adaptability or versatility
If a stroke restrictor with multiple arms of different lengths is used to adjust dose volume, then dose adjustment is possible, but the mechanism becomes complex with multiple moving parts
Solution Approach 1:
The patent applies the taking out principle by extracting the dose adjustment function from a complex multi-arm stroke restrictor mechanism and implementing it through a single movable limiting element (15) that can be positioned at different locations. This simplifies the adjustment mechanism while maintaining the ability to control dose volume, directly addressing the contradiction between adaptability and ease of operation.
Data Source
AI summary
A dispenser system includes a dispenser having a housing and an actuator, a liquid container disposed in the housing, a pump operably connected to the dispenser, and an adjuster. The actuator is configured to be manually operated to manually activate the pump to discharge liquid from the liquid container. The actuator is formed with a front side and a rear side facing the rear of the dispenser. The adjuster is configured to selectively limit a displacement of the actuator to define a corresponding predetermined maximum dose volume when the liquid is being discharged from the liquid container. The adjuster is movable between at least a first position and a second position.