Dual-purpose Blowing-suction Machine Baffle Switching Mechanism
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Solution Overview
Problem
Current household appliances lack a dual-purpose functionality that combines vacuuming and air blowing, requiring separate devices for tasks like pet hair cleaning and drying, which is inconvenient for users.
Innovation Solution
A dual-purpose blowing-suction machine with a casing, air suction and blowing openings, a dust barrel, air duct, motor, and a baffle that switches between two air inlet routes to enable both vacuuming and air blowing functions independently, using a HEPA filter and elastic element to facilitate this switching mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vacuum cleaner is used for air blowing, then the air blowing function is provided, but fine dust particles and odor remain in the blown air making it unsuitable for normal use
Solution Approach 1:
The air passage is segmented into two separate routes: a suction route through the dust barrel with filter for vacuuming, and a clean air route through the inner cavity without dust contact for blowing. This segmentation prevents dust contamination in the air blowing function while maintaining vacuuming capability.
Solution Approach 2:
The baffle acts as an intermediary switching mechanism that directs airflow between two separate paths. One path routes air through the dust barrel and filter for vacuuming, while the other path routes clean air directly from the inner cavity for blowing, preventing dust contamination.
2Adaptability or versatility
If separate vacuum cleaner and blower devices are used, then both functions are available, but device complexity and user convenience deteriorate
Solution Approach 1:
The air passage structure is designed with universal adaptability to perform both vacuuming and air blowing functions using the same motor and basic components. The dual-route design with baffle switching allows one device to replace two separate appliances, reducing complexity despite added versatility.
Solution Approach 2:
The baffle is designed as a movable switching component that dynamically changes the airflow path between vacuuming and blowing modes. This dynamic switching mechanism allows a single static structure to fulfill multiple functional roles, avoiding the need for completely separate devices.
3Adaptability or versatility
If a baffle switching mechanism is added to enable dual-purpose function, then adaptability improves, but device complexity increases
Solution Approach 1:
The air passage is divided into distinct segments with dedicated functions: the dust barrel route for vacuuming and the inner cavity route for blowing. The baffle segments the flow paths, allowing independent optimization of each route while maintaining overall system simplicity.
Solution Approach 2:
The baffle serves as a simple intermediary switching element rather than a complex control system. This minimalistic approach to function switching adds adaptability while keeping the structural complexity increase to a minimum.
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
Enables both vacuuming and air blowing functions to be performed independently without interference, meeting special user needs by providing a single appliance for tasks like pet hair cleaning and drying.
Implementation Method 1
a HEPA filter is arranged in the dust barrel, and the HEPA filter filters air entering the front through hole from the dust barrel
Implementation Method 2
An elastic element is arranged in the casing, the elastic element elastically pushes the connecting rod and drives the connecting rod to move backward
Data Source
AI summary
A dual-purpose blowing-suction machine includes a casing, an air suction opening, an air blowing opening, a dust barrel, an air duct, and a motor. The dust barrel is in communication with the air suction opening, and the motor is provided with an air inlet hole in communication with the air duct and an air outlet cavity in communication with the air blowing opening. The dual-purpose blowing-suction machine provides an inner cavity in the casing, and the casing is provided with an air inlet in communication with the inner cavity; and a front through hole is provided between the dust barrel and the air duct, a rear through hole is provided between the air duct and the inner cavity, and a baffle that switches opening and closing of the front through hole and the rear through hole is arranged in the air duct.