Duplex Washing Machine Drawer with Motor-Driven Telescopic Ejection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing duplex washing machines require manual effort and can be laborious to open and close due to the need for handles or short ejection strokes, especially when drawers are heavy or positioned at lower levels, making operations time-consuming and difficult.
Innovation Solution
An automatically openable drawer system with a telescopic rod and motor-driven mechanism, allowing the drawer to be opened or closed via a simple key press or touch operation, eliminating the need for handles and enabling stable, one-click operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a handle is installed on the drawer panel for manual pulling/pushing, then the drawer can be opened and closed, but the operation becomes laborious when articles in the drawer are heavy or when the drawer is positioned at the lower part
Solution Approach 1:
The drawer opening mechanism serves itself by using the weight of the drawer and articles as the driving force. The pull rod connects to the drawer bottom and utilizes gravitational force to automatically open the drawer when the locking member is released, eliminating the need for manual pulling force.
Solution Approach 2:
The locking member acts as a counterweight mechanism that holds the drawer in place against gravitational force during closed state, and when released, allows the drawer to move under its own weight. This converts the burden of heavy drawer into a controlled release mechanism.
2Length of moving object
If a slide rail is used to eject the drawer with external force, then the drawer can be opened, but the ejection stroke is short and requires greater triggering force for longer stroke
Solution Approach 1:
The mechanism transitions from a static locking state to a dynamic opening state by releasing the locking member. The drawer then moves dynamically under gravitational force along a longer path, achieving extended ejection stroke without proportionally increased triggering force.
Solution Approach 2:
The opening action occurs in periodic stages: first the locking member is released, then the drawer moves outward in a controlled manner under gravity, allowing for a longer overall stroke compared to single-force slide rail mechanisms.
3Productivity
If manual handling of heavy drawer is required, then the drawer structure remains simple, but the operation becomes time-consuming and laborious
Solution Approach 1:
The drawer opening system performs the work itself by utilizing the drawer's own weight as the driving force. When the locking member is released, the drawer automatically opens without requiring external manual effort, significantly improving operation speed and ease.
Solution Approach 2:
The pull rod serves as an intermediary mechanism that connects the locking member release action to the drawer movement. It translates the small release motion into a long-distance drawer opening motion, improving operational efficiency.
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
Simplifies the operation of opening and closing the drawer, reducing labor and time, while ensuring stable and reliable movement, as the automatic ejection device is fixed on the washing machine base and uses a rack-and-pinion mechanism for smooth drawer movement.
Implementation Method 1
uses a rack-and-pinion mechanism for smooth drawer movement
Data Source
AI summary
A duplex washing machine with an automatically openable drawer comprises a base, a drawer, and an automatic ejection device. The drawer is positioned in a housing of the washing machine; an opening through which the drawer is pulled and pushed to be opened and closed is formed in the housing; the automatic ejection device is arranged under the drawer and comprises a device body and a telescopic rod; an extension end of the telescopic rod is fixed with the drawer; the other end of the telescopic rod extends into the device body; the device body is fixedly connected to the base of the washing machine; and the device body drives the drawer to move into or out of the housing through the telescopic rod. According to the duplex washing machine, a user can open or close the drawer through one-click operation, such as simply pressing a button or touching.