Extraction cleaner with quick empty tank
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Solution Overview
Problem
Existing extraction cleaners require cumbersome methods for emptying recovery tanks, often necessitating tilting or rotating the tank, which can be inefficient and require two hands.
Innovation Solution
A removable recovery tank with a drain opening and a valve system that can be opened via a user-actuated button, allowing for single-handed, upright emptying without tilting or rotating the tank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the recovery tank is emptied by tilting or rotating it, then the tank can be emptied, but the operation becomes cumbersome and requires two hands
Solution Approach 1:
The emptying function is segmented from the tank body by adding a separate drain valve assembly with an actuator. This allows the draining function to be operated independently from the tank handling, enabling one-handed operation while keeping the tank upright.
Solution Approach 2:
A drain valve acts as an intermediary mechanism between the user and the tank contents. Instead of directly tilting or rotating the tank to empty it, the user operates the valve through an actuator, which mediates the emptying process while the tank remains in a stable upright position.
2Productivity
If the drain opening is provided on the lower portion of the recovery container, then gravity can assist draining, but the valve actuator would be difficult to reach if placed on the lower portion
Solution Approach 1:
The actuator is positioned on the upper portion of the tank while the drain opening remains on the lower portion, utilizing the vertical dimension of the tank. This spatial arrangement allows the user to easily reach the actuator from above while gravity naturally directs the drained fluid downward through the lower opening, solving both accessibility and draining efficiency requirements.
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 quick and ergonomic emptying of the recovery tank, improving user convenience and efficiency by allowing single-handed operation while maintaining the tank in an upright position.
Implementation Method 1
a seal element (420) and a sealing surface (404). The valve (402) can utilize an elastic sealing element, such as an O-ring, elastomeric seal, or other suitable sealing component, that deforms elastically to create a fluid-tight seal against the sealing surface.
Data Source
AI summary
An extraction cleaner is provided with a removable recovery tank having a drain opening quick-empty valve and actuator assembly for emptying the tank. The actuator assembly may include a quick-release latch for a bottom-empty door or a drain plug for sealing the drain opening. The quick-release latch may include a button remote from the door or drain plug.