Portable Vacuum Multi-Part Shell Material Guide to Prevent Backflow
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Solution Overview
Problem
Portable suction devices face challenges in efficiently transferring suction material from the suction nozzle to the container while minimizing backflow and optimizing space usage, particularly in single-chamber systems where complex geometries are difficult to manufacture.
Innovation Solution
A portable suction device with a suction material guide between the suction channel and container, designed as separate shell components that form a tortuous path, preventing backflow and allowing for compact design by utilizing the handle for the suction material container and guide, with a closure element to manage the inlet and outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction material guide is designed as a single complex geometry to prevent backflow and optimize space, then the functional performance is improved, but the manufacturing complexity and cost increase significantly
Solution Approach 1:
The suction material guide is divided into multiple separate shell components (first shell component, second shell component, third shell component) that can be manufactured independently using simple geometries and then assembled together. This segmentation allows each component to be produced with standard manufacturing processes while the combined assembly achieves the complex tortuous path geometry needed for effective backflow prevention.
2Reliability
If the suction material guide uses a tortuous path geometry to prevent backflow, then the backflow prevention capability is improved, but the installation space requirement increases
Solution Approach 1:
The multiple shell components are designed to nest within each other or fit together in a compact arrangement, with the first, second, and third shell components forming a nested structure that creates the tortuous path in a space-efficient manner. This nesting approach allows the complex geometry to be achieved within the limited space of the suction device.
3Ease of manufacture
If simple shell components are used for the suction material guide, then the production cost and ease of manufacture are improved, but the ability to create complex backflow prevention geometries is worsened
Solution Approach 1:
Multiple simple shell components are merged together through assembly to create the overall complex geometry of the suction material guide. Each individual shell component has a simple manufacturable shape, but their combination forms the tortuous path structure necessary for effective backflow prevention, achieving both simplicity in manufacturing and complexity in function.
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 effectively prevents suction material backflow, allows for complex geometries, and reduces production costs by using simple shell components, ensuring efficient material transfer and compact design.
Implementation Method 1
a suction unit (10) for generating a suction flow which provides a suction vacuum applied to the suction nozzle (4)
Implementation Method 2
a separating device (12) which is able to divide the suction flow sucked in via the suction nozzle (4) into an exhaust air flow flowing out of the suction device and suction material in the form of particles and/or fluid components
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A portable suction device comprising a suction channel opening into a suction nozzle, a housing, a collection container, and a suction unit for generating a suction flow that provides a negative pressure at the suction nozzle, and a separation device capable of splitting the suction flow drawn in through the suction nozzle into an exhaust air flow exiting the suction device and into collected material in the form of particles and/or fluid components, wherein the separated particles or fluid components are collected in the collection container. To provide a suction device that offers good space utilization at low manufacturing costs, the portable suction device includes a material guide between the suction channel and the collection container, through which the collected material enters the collection container during normal use of the suction device. The geometric boundary of the material guide is multi-part and is formed by at least one separate shell component.