Sliding Swivel Front Wall for Laboratory Weighing Compartment
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Solution Overview
Problem
Existing laboratory instruments with working compartments lack adequate accessibility, particularly when performing multi-functional tasks that require frequent access to the weighing object or materials within the compartment, as their design primarily optimizes for loading and unloading from specific sides, limiting flexibility and efficiency in processes like solution preparation or powder mixing.
Innovation Solution
A laboratory instrument with a housing containing a weighing cell and a working compartment delimited by a floor, top cover, rear wall, and slidable sidewalls, where the front wall can slide and swivel between open and closed positions, allowing access from three sides, thus enhancing accessibility while minimizing air turbulence and reducing height requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the front wall is rigidly connected to the housing to provide stability, then the draft shield maintains its shape, but accessibility to the working compartment is limited
Solution Approach 1:
The front wall is designed as a movable closure means that can transition between a closed position (providing stability and protection) and an open position (providing accessibility). This dynamic element allows the system to adapt its configuration based on operational needs, resolving the contradiction between stability and accessibility.
Solution Approach 2:
The draft shield is divided into separate movable components (front wall, sidewalls, top cover) that can be independently opened. This segmentation allows selective access to the working compartment while maintaining the integrity of the overall enclosure when closed, balancing accessibility requirements with structural stability.
2Ease of operation
If swiveling closure means are used to improve accessibility, then access from multiple sides is enabled, but air turbulence increases and temperature stability deteriorates
Solution Approach 1:
The closure means are designed to be movable rather than fixed, allowing them to transition between open and closed states. When closed, they provide stable sealing that minimizes air turbulence and maintains temperature stability. When open, they enable accessibility without permanently disrupting the stable environment.
Solution Approach 2:
The harmful effect (air turbulence) is extracted and isolated to the brief moment when closure means are opened, while the majority of the operation time the stable environment is maintained. The movable closure means allow the system to remove the source of disturbance only when necessary for access, rather than continuously.
3Productivity
If the working compartment is designed for multi-functional tasks requiring frequent access, then operational efficiency improves, but the stability of the weighing environment is compromised
Solution Approach 1:
The movable closure means allow the system to dynamically switch between a stable enclosed state during weighing operations and an accessible open state during material handling. This dynamic capability enables multi-functional tasks while maintaining weighing stability when the compartment is enclosed.
Solution Approach 2:
Materials and tools can be pre-prepared outside the working compartment and then quickly introduced through the movable closure means when needed. This preliminary preparation reduces the time the compartment needs to be open, minimizing disruption to the weighing environment while enabling efficient multi-functional operations.
Data Source
AI summary
A laboratory instrument with a housing containing a weighing cell has a working compartment that is connected to the housing. The working compartment has a floor, a top cover, a rear wall, a front wall and two sidewalls. Arranged in the working compartment is a load receiver which is connected to the weighing cell. Also connected to the housing is at least one guiding device which serves to guide a linear movement and simultaneous swivel movement of individual portions of the front wall or the entire front wall.