High-Pressure Cleaner Nozzle Switching by Fluid-Pressure Actuation
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Solution Overview
Problem
Existing high-pressure cleaning devices require manual effort to adjust the switch element, making the process cumbersome and inconvenient.
Innovation Solution
The high-pressure cleaning device utilizes the pressure of the cleaning liquid to automatically adjust the switch element between different states, eliminating the need for manual force and additional motors or pressure circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manually rotatable switch element is used to select nozzles, then nozzle selection is possible, but the adjustment requires manual effort and is cumbersome
Solution Approach 1:
The switch element is designed to be automatically adjusted by the cleaning liquid pressure itself. The actuator is moved by the force of the cleaning liquid from a first position to a second position, enabling the system to switch nozzles without requiring manual operation. This self-service mechanism eliminates the need for users to manually rotate or adjust the switch element.
Solution Approach 2:
The invention uses hydraulic principles by utilizing the pressure of the cleaning liquid to drive the actuator. The cleaning liquid exerts force on the actuator, which in turn moves the switch element between different positions. This hydraulic actuation mechanism replaces manual mechanical adjustment with fluid-powered automatic switching.
2Extent of automation
If additional motors or pressure circuits are added to automate switch element adjustment, then automatic switching is achieved, but device complexity increases
Solution Approach 1:
The system uses the cleaning liquid pressure that is already present in the high-pressure cleaning device to automatically adjust the switch element. No additional motors or separate pressure circuits are required because the existing cleaning liquid flow provides the necessary force to move the actuator and switch between nozzles.
Solution Approach 2:
The cleaning liquid serves multiple functions: it performs the cleaning task and simultaneously acts as the actuating medium for switching between nozzles. This multi-functionality eliminates the need for dedicated actuation systems, maintaining device simplicity while achieving automatic switching.
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
Enables simple and comfortable adjustment of the switch element, allowing for easy switching between different nozzles and pressure adjustments without changing the volume flow, even during pressure reductions.
Implementation Method 1
the actuator, due to a force effected by the cleaning liquid on the actuator, can adjust the switch element between the first switched state and the second switched state
Data Source
AI summary
A high-pressure cleaning device has a conveying pump and a conveying conduit with a spray opening. The conveying conduit conveys cleaning liquid, conveyed by the conveying pump, in a conveying direction from the conveying pump to the spray opening of the conveying conduit. A switch element is provided that has at least a first switched state and a second switched state. An actuator is provided that adjusts the switch element between the first switched state and the second switched state. The high-pressure cleaning device is provided such that the actuator adjusts the switch element between the first switched state and the second switched state by an adjusting force effected by the cleaning liquid on the actuator.