Suction assembly provided with a structure for protecting a waste separation and collection device
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Solution Overview
Problem
Canister vacuum cleaners' waste separation and collection devices are prone to damage from frontal impacts with obstacles during cleaning, which can hinder the suction assembly's operation and reduce its service life.
Innovation Solution
A sled-type suction assembly with a protective structure extending radially from the vacuum cleaner housing to shield the waste separation and collection device, including a handle for user grip, and covering the main wheels to prevent collisions with low obstacles, allowing the device to slide over or dodge obstacles effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the waste separation and collection device is positioned without additional protection, then the structure remains simple and accessible, but the device is exposed to frontal impacts from obstacles during movement
Solution Approach 1:
The protective structure is designed as a separate, detachable component that can be independently attached to or removed from the vacuum cleaner housing. This segmentation allows the protection function to be added without permanently complicating the housing structure, maintaining simplicity while providing reliability when needed.
Solution Approach 2:
The protective structure acts as an intermediary element positioned between the waste separation and collection device and external obstacles. This mediator absorbs or deflects impacts before they reach the vulnerable device, resolving the contradiction by adding protection without requiring fundamental structural changes to the housing.
2Reliability
If the protective structure extends radially from the housing, then it effectively shields the waste separation device from obstacles, but it increases the overall size of the vacuum cleaner assembly
Solution Approach 1:
The protective structure utilizes a radial extension pattern that follows the curved contour of the vacuum cleaner housing. This curved design provides effective obstacle protection by directing impacts away from the waste separation device, while being more space-efficient than straight protruding guards would be.
Solution Approach 2:
The protective structure is positioned specifically at the locations where the waste separation and collection device is most vulnerable to impact. Rather than uniformly increasing the size of the entire vacuum cleaner, protection is localized to critical areas, minimizing volume increase while maximizing protective effectiveness.
3Duration of action of stationary object
If the waste separation and collection device is made more robust to resist impacts, then durability improves, but the device becomes heavier and more complex
Solution Approach 1:
The protective structure provides beforehand cushioning by being positioned between external obstacles and the waste separation device. It absorbs or deflects impact forces before they reach the device, allowing the device itself to remain lightweight while still achieving improved durability through this pre-emptive protection mechanism.
Solution Approach 2:
The protection function is extracted from the waste separation and collection device itself and implemented as a separate protective structure. This extraction allows the device to maintain its original lightweight design while still benefiting from enhanced durability through the dedicated protection element.
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 protective structure enhances the durability of the waste separation and collection device by interposing itself between the device and obstacles, reducing damage and extending the service life of the suction assembly while maintaining ergonomic handling and efficient obstacle avoidance.
Implementation Method 1
a fan coupled to the electric motor to generate a flow of air in the aeraulic circuit from the suction nozzle to the at least one exhaust port
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The suction assembly (1) includes a vacuum housing (3); a waste separation and collection device (8) comprising at least one outer surface (150, 160) which is partially spherical and which, together with an outer surface of the housing (4) of the vacuum housing (3), forms an assembly of overall spherical shape; first and second main wheels mounted movable in rotation relative to the vacuum housing (3); and a protective structure (32) configured to protect the waste separation and collection device (8), the protective structure (32) being disposed outside the vacuum housing (3) and extending radially at a distance from the outer surface of the housing (4) and from at least one outer surface (150, 160).