Expandable Bladder Reservoir for Leak-Resistant Mopping
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Solution Overview
Problem
Rigid fluid reservoirs in mopping systems lead to leakage, cracking, and ergonomic issues, making them difficult to use in confined spaces and inefficient to fill.
Innovation Solution
A mopping device with an expandable bladder reservoir that eliminates the need for air vents during filling and emptying, featuring a flexible bladder and a valve system for controlled fluid flow, along with a refill reservoir connector for convenient refilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid reservoir is used, then the reservoir maintains structural stability, but it requires a vent that allows fluid leakage and is prone to cracking
Solution Approach 1:
The patent replaces the rigid reservoir with a flexible bladder that can expand and contract. This flexible membrane structure eliminates the need for vents while preventing leakage through its inherent flexibility and ability to seal around the fluid contents, directly resolving the contradiction between structural stability and leakage resistance.
Solution Approach 2:
The reservoir transitions from a static rigid structure to a dynamic flexible bladder that adapts its shape and volume based on fluid content. This dynamic characteristic allows the reservoir to maintain integrity without vents and resist cracking by flexing rather than breaking under stress.
2Quantity of substance
If a large rigid reservoir is used, then fluid storage capacity is increased, but it becomes difficult to use in confined spaces
Solution Approach 1:
The flexible bladder can be compressed and deformed to fit into confined spaces while maintaining its fluid storage capacity. Unlike rigid reservoirs that maintain fixed dimensions, the dynamic flexible structure adapts to available space, enabling maneuverability in tight areas without sacrificing storage volume.
Solution Approach 2:
The flexible bladder can be collapsed or compressed to fit within smaller spaces, allowing the reservoir to be stored or maneuvered in confined areas when not in use, while still providing adequate storage capacity when deployed.
3Ease of manufacture
If a rigid reservoir is used, then manufacturing is simplified, but refilling requires vent mechanisms that complicate the system
Solution Approach 1:
The flexible bladder eliminates the need for complex vent mechanisms by using the membrane itself to manage air displacement during filling and emptying. This simplifies the overall system while maintaining ease of manufacture, as the single-piece bladder design is actually simpler to produce than rigid reservoirs with integrated vent systems.
4Volume of moving object
If the reservoir opening is made small, then the device size is reduced, but filling becomes difficult and spillage risk increases
Solution Approach 1:
The flexible bladder can be opened to a large aperture for easy filling, then sealed to maintain a compact form. The flexibility allows the opening to expand during filling operations to accommodate bottles or containers, then close securely to prevent spillage, resolving the contradiction between small device size and easy filling.
Data Source
AI summary
A mopping device includes a mopping portion, a fluid release device for releasing fluid to at least one of a surface to be mopped and the mopping portion, a handle configured to be gripped by a user to control the mopping portion, and a reservoir for storing fluid. The reservoir can include an expandable bladder. The reservoir also can be configured such that air need not be evacuated from the reservoir during filling of the reservoir. The mopping device also can be part of a mopping system, in which a refill reservoir is provided to refill the reservoir of the mopping device.