Mop Wringing Press Jaws With Dead-Center Lever Locking
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Solution Overview
Problem
Existing devices for squeezing out liquid-absorbing cleaning elements, such as textile mop covers, often require significant manual effort and fail to achieve sufficient dewatering, with many mechanically operated wringers being cumbersome and inefficient, while electrically operated models are heavy and energy-intensive.
Innovation Solution
A device featuring a press basket with movable press jaws connected to a displacement element via an articulated lever, allowing for a self-guided kinematic setup that fixes the jaws in the optimal squeezing position, reducing the effort required and enhancing dewatering efficiency, with features like rotatable actuating elements and tension springs to simplify operation and maintain the squeezing position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If mechanically operated wringers are used, then the device structure is simple, but significant manual effort is required and sufficient dewatering is not achieved
Solution Approach 1:
The patent employs a dynamic lever mechanism where the lever can pivot between different positions. The lever is connected to the pressing jaw through a pivot connection, allowing the pressing force to be applied at an optimal angle. This dynamic adjustment enables the lever to maintain effective pressing force throughout the dewatering process, reducing the manual effort required while maintaining structural simplicity.
Solution Approach 2:
The patent introduces a vertical dimension to the pressing mechanism by positioning the lever horizontally and the pressing jaw vertically. This dimensional arrangement allows the lever's rotational motion to be converted into vertical pressing force, improving mechanical efficiency and reducing the effort needed to achieve sufficient dewatering pressure.
2Force
If high forces are applied with existing presses, then dewatering force is increased, but dewatering efficiency remains limited
Solution Approach 1:
The patent incorporates a spring element that is pre-compressed when the lever is in its initial position. This stored elastic energy is released during the dewatering process, providing an additional force boost that enhances the pressing force without requiring increased manual effort. The spring acts as a preliminary energy storage mechanism that supplements the applied force.
Solution Approach 2:
The patent changes the pressing force parameter dynamically through the lever mechanism. By adjusting the lever's position and the spring's compression, the pressing force can be optimized throughout the dewatering process. This parameter adjustment ensures that sufficient force is applied at each stage, improving overall dewatering efficiency without requiring consistently high manual effort.
3Reliability
If electrically operated mop press is used, then uniform squeezing pressure and sufficient drainage are achieved, but weight and energy requirements increase
Solution Approach 1:
The patent designs a self-regulating mechanical system where the lever and spring automatically adjust the pressing force. The spring's elastic properties provide automatic force regulation, eliminating the need for electronic sensors and motors to control pressure uniformity. This self-service mechanism maintains reliable, uniform squeezing pressure while keeping the device lightweight and energy-free.
Solution Approach 2:
The patent replaces the electrical motor and control system with a purely mechanical lever-and-spring mechanism. This substitution eliminates the need for electricity while achieving uniform pressing force through the natural elastic properties of the spring and the geometric advantages of the lever, significantly reducing device weight and energy requirements.
4Force
If pressing lever is actuated with clamping device, then force transmission is improved, but device complexity increases
Solution Approach 1:
The patent combines the lever mechanism and pressing jaw into an integrated assembly where the lever directly connects to the pressing jaw through a pivot connection. This merging eliminates the need for separate clamping devices while maintaining effective force transmission. The integrated design reduces structural complexity while preserving the mechanical advantage of lever-based force amplification.
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
The device achieves better dewatering with reduced manual effort, allowing cleaning staff to maintain the optimal squeezing position without exerting significant force, leading to improved drainage efficiency and reduced operator fatigue.
Implementation Method 1
The displacement element is operatively connected to a manually operated lever via an articulated lever, wherein the displacement element can be fixed in the first end position by arranging the articulated lever beyond its dead center
Data Source
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AI summary
The device (10) has a pressing cage (12) connected to a collection container, and pressing jaws (22) arranged in the pressing cage and moved in slotted guides (40, 40a, 40b). The pressing jaws are operatively connected with a displacement element (32) that moves in a moving direction between a set of end positions. A rotatable actuating element (20) is connected to the displacement element by articulated levers (28, 28a, 28b), where the displacement element is outwardly fixed at one of the end positions by an arrangement of the articulated levers over a dead center of the articulated levers.