Manual Metering Device Frame Housing Segmentation
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Solution Overview
Problem
Conventional manual dosing devices have housings made of rigid plastic that are uncomfortable to hold, prone to soiling, and difficult to clean, limiting the choice of materials due to the need for high strength to withstand fluid handling forces.
Innovation Solution
A manual dosing device with an elongate frame as a supporting structure, made of stable materials like polyetherketone (PEEK), which absorbs forces and allows for a softer, more comfortable housing design that is easy to clean and resistant to chemicals, using a frame to distribute and absorb forces rather than relying solely on the housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the housing is made of rigid plastic to withstand fluid handling forces, then the structural strength is sufficient, but the user comfort deteriorates and the housing becomes prone to soiling and difficult to clean
Solution Approach 1:
The device is divided into two main structural components: a rigid frame that provides structural strength and force absorption, and a separate housing that encloses the frame and provides user comfort. The frame handles mechanical loads while the housing provides ergonomic and cleaning advantages.
Solution Approach 2:
The frame acts as an intermediary structure between the internal components and the external housing. It absorbs and distributes forces that would otherwise be transmitted to the housing, allowing the housing to be made of softer, more easily cleanable materials.
2Stability of the object's composition
If the housing is made of rigid plastic to maintain structural integrity, then the housing can support internal components, but the material choice is limited and cleaning becomes difficult
Solution Approach 1:
The structural support function is separated from the enclosing function. The frame provides structural integrity and component support, while the housing provides enclosure and user interface functions, allowing independent optimization of each component's material properties.
3Force
If the housing absorbs all forces during fluid handling, then the housing must be made of high-strength rigid material, but this reduces ease of cleaning and increases soiling susceptibility
Solution Approach 1:
The frame serves as a force-absorbing intermediary structure between the fluid handling components and the housing. It intercepts and distributes mechanical forces, preventing them from being transmitted to the housing walls where they would cause soiling and cleaning difficulties.
Data Source
Figure 1
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AI summary
The device has an elongated frame (1) designed as a support structure. A support plate, syringe gripping levers and a retaining body releasably hold a syringe or a pipette tip at a lower end of the frame. An actuation lever and a pawl are arranged above the support plate, the gripping levers and the retaining body at the frame. A displacing unit displaces a fluid in the syringe or the pipette tip and driven by the actuation lever and the pawl. The displacing unit is connected with the support plate, the gripping levers and the retaining body. A housing (24) encloses the frame.