Sinking Magnetic Scrubber with Counterweight for Automatic Uprighting
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Solution Overview
Problem
Existing magnetic scrubber assemblies for cleaning aquarium walls are cumbersome to reposition after the internal scrubbing component disengages from the magnetic force, especially in high or embedded aquariums, and lack a convenient method to restore normal operation.
Innovation Solution
Designing an against-wall-glass sinking magnetic scrubber assembly with an internal scrubbing component having a center of gravity below its horizontal central axis and a specific gravity greater than the aquarium liquid, equipped with magnets and magneto-conductive plates, allowing it to automatically upright and facilitating easy repositioning by adjusting the buoyancy and gravity lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the internal scrubbing component is disengaged from magnetic force control, then it sinks to the bottom of the aquarium, but it becomes troublesome to restore the magnetic scrubber assembly to normal operation condition
Solution Approach 1:
The internal scrubbing component is designed with a specific gravity greater than the aquarium liquid, causing it to sink to the bottom when disengaged from magnetic control. This counterweight design enables automatic positioning at the bottom, from where it can be easily repositioned by applying magnetic force from the external component, thus resolving the contradiction between ease of repositioning and time loss.
2Ease of operation
If the internal scrubbing component floats on the liquid surface, then it can be repositioned more easily, but it requires additional steps to move it to the inner surface of the wall-glass
Solution Approach 1:
Instead of making the internal scrubbing component float (lighter than liquid), the invention inverts the approach by making it sink (heavier than liquid). The component sinks to the bottom of the aquarium when disengaged, and then can be easily pulled up to the inner wall surface by applying magnetic force from the external component. This inversion simplifies the restoration process to a single magnetic attraction step.
3Difficulty of detecting and measuring
If the internal scrubbing component is made to sink to the bottom, then it can be easily located, but it may trap fingers between the component and the glass surface
Solution Approach 1:
The internal scrubbing component is designed with a localized protrusion or handle structure at a specific position. This local quality change provides a safe interaction point for users to apply magnetic force or manually adjust the component without risking finger trapping between the component body and the glass surface, while still maintaining the sinking behavior for easy location.
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 the internal scrubbing component to automatically upright after sinking, simplifying the restoration of the scrubber assembly to normal operation without manual intervention, preventing damage to the aquarium surface and avoiding finger trapping, and facilitating easy removal from the glass.
Implementation Method 1
a set of magnets and magneto-conductive plate are installed in the said internal scrubbing component, another set of magnets and magneto-conductive plate are installed in the said hand-hold scrubbing component, and therefore the internal scrubbing component on the inner surface of the wall-glass can move as with the movement of the hand-hold scrubbing component on the outer surface of the wall-glass of the aquarium
Implementation Method 2
the total specific gravity of internal scrubbing component is greater than that of the liquid contained in the aquarium
Implementation Method 3
the product of the length Lp from the center of gravity Pp of the internal scrubbing component to the lowest part and the gravity P of the internal scrubbing component
Implementation Method 4
the center of gravity of the internal scrubbing component is designed underneath its geometrically horizontal central axes
Implementation Method 5
the product of the length Lp from the center of gravity Pp of the internal scrubbing component to the lowest part and the gravity P of the internal scrubbing component is smaller than the product of the length Lf from equivalent function point Pf of buoyancy F that the internal scrubbing component is received to its lowest part and the buoyancy F that the internal scrubbing component is received
Data Source
Figure 1-1~1-2
Figure 1-3~1-5
Figure 2-1~2-2
AI summary
The present involves magnetic scrubber assembly and its design method for cleaning the wall-glass of an aquarium, the center of gravity of the internal scrubbing component is designed underneath its the geometrically horizontal central axes; the product of the length Lp from the center of gravity Pp of internal scrubbing component to the lowest part and the gravity P of the internal scrubbing component is smaller than the product of the length Lf from equivalent function point Pf of buoyancy F that the internal scrubbing component is received to its lowest part and the buoyancy F that the internal scrubbing component is received, therefore, which can ensure that the internal scrubbing component can erect automatically after it lied down for whatever reasons. When the internal scrubbing component breaks away from the control of hand-hold scrubbing component, the internal scrubbing component can sink upright, and the magnetic scrubber assembly can be conveniently restored to the normal operation condition.