Dish washing machine
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Solution Overview
Problem
The existing dish washing machines require users to repeatedly bend and fold their back to load and unload the large and heavy lower basket, causing inconvenience, and the lifting devices can interfere with the washing space and lead to garbage blockages.
Innovation Solution
A dish washing machine with a lifting device that includes a guide rail system and link members to raise and lower the lower basket, which is enclosed within the door when not in use, minimizing space intrusion and using elastic members for easy lifting, and a slowing device to control the speed of the guide rail movement, preventing garbage blockages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lifting device is installed to raise and lower the lower basket, then user convenience is improved, but the lifting device may invade the washing space and cause garbage blockages
Solution Approach 1:
The lifting device is nested within the door structure of the dish washing machine. The guide rails are mounted on the door, and the link members are housed inside the door cavity, allowing the lifting mechanism to be concealed when not in use and avoid interfering with the washing space inside the tub.
Solution Approach 2:
The lifting device is extracted from the main body of the dish washing machine and relocated to the door structure. This separation allows the lifting mechanism to operate independently outside the washing chamber, preventing garbage blockages while maintaining the lifting function for the lower basket.
2Quantity of substance
If the lower basket is made large to wash a large amount of dishes, then washing capacity is improved, but the basket becomes heavy and requires repeated bending and folding
Solution Approach 1:
The lifting device provides a mechanical advantage system that counteracts the weight of the heavy lower basket. The link members and guide rails create a leveraged mechanism that reduces the effort required by the user to lift and lower the basket, eliminating the need for repeated bending and folding.
3Ease of operation
If the guide rail is positioned to allow easy access for the basket, then ease of operation is improved, but the guide rail may interfere with the washing space
Solution Approach 1:
The guide rail system is designed to be dynamic rather than static. The guide rails are mounted on the movable door structure, allowing them to move outward when the door is open for easy basket access, and retract inward when the door is closed to maximize washing space. This dynamic positioning resolves the conflict between accessibility and space utilization.
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 solution enhances user convenience by reducing the effort required to handle the lower basket, maintains a clean washing space by preventing contamination, and minimizes the risk of garbage blockages during washing and draining.
Implementation Method 1
at least one elastic member configured to provide an elastic restoring force in a direction in which the at least one guide rail moves upward
Implementation Method 2
a damping spring may provide an elastic restoring a force to the operating body
Implementation Method 3
at least one link member pivotably provided at the door
Data Source
AI summary
The inconvenience associated with using a lower basket of a dish washing machine is reduced or eliminated by a dish washing machine which includes a washing tub with an open front, a basket configured to be inserted in or drawn out from the washing tub through the open front of the washing tub, a door which opens or closes the open front of the washing tub, at least one guide rail for mounting the basket on the door when the basket is drawn out from the washing tub while the door is open, and a lifting device which guides the guide rail to move between a raised position and a lowered position of the guide rail.