Suction Cup Dust Extractor With Venturi Debris Clearance
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Solution Overview
Problem
Existing dust extractors for drills lack efficient debris clearance and air flow management, leading to incomplete dust removal and potential debris entry into the air passages.
Innovation Solution
A suction cup dust extractor design featuring a housing with a drill collar, air passages, and a detachable collar system that creates a fluid connection for air flow, utilizing a venturi effect to enhance debris clearance and prevent debris entry through a combination of passages and a flexible tube connection to a vacuum source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed collar design is used, then the structure is simple, but it cannot adapt to different collar diameters and drilling applications
Solution Approach 1:
The collar is designed to be releasably attachable rather than fixed, allowing dynamic reconfiguration. The collar can be attached and detached from the housing to adapt to different collar diameters and drilling applications, transforming a static structure into a dynamic, adaptable system.
Solution Approach 2:
The releasable collar attachment system enables the dust extractor to serve multiple functions across different drilling applications. By allowing the collar to be removed and replaced, a single dust extractor housing can accommodate various collar diameters, making the device universal rather than application-specific.
2Reliability
If air passages are not properly sealed, then the structure is simple, but debris can enter the air passages and block flow
Solution Approach 1:
The first air passage acts as an intermediary fluid connection between the drill passage and the aperture. When the collar is attached, this intermediate passage creates a sealed fluid pathway that prevents debris from entering while allowing air flow, mediating between the drilling operation and the dust extraction system.
Solution Approach 2:
The design extracts the potential harm (debris entry) by creating a separate, protected fluid connection pathway. The first air passage within the housing isolates the air flow path from the drilling environment, taking out the vulnerability of debris contamination from the system.
3Productivity
If multiple air passages are created, then debris clearance is improved, but the housing structure becomes more complex
Solution Approach 1:
The air flow path is segmented into multiple distinct passages: the first air passage for the fluid connection from drill passage to aperture, the second air passage from recess to aperture, and the aperture itself. This segmentation of the housing internal structure enables improved debris clearance by creating multiple flow pathways while organizing complexity into functional segments.
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 design ensures effective debris removal and prevention of debris entry into air passages, maintaining a constant air flow for improved dust extraction efficiency and adaptability with different collar diameters.
Implementation Method 1
utilizing a venturi effect to enhance debris clearance
Implementation Method 2
suction cup dust extractor
Data Source
AI summary
A suction cup dust extractor for a drill including a housing; a drill collar having a drill passage formed through it; a recess formed by the walls of the housing having an opening and which, in use, locates against a work piece to create a chamber; an aperture located on the housing through which air can pass; at least one first air passage formed within the housing which connects to the aperture; and at least one second air passage formed within the housing which enables air to pass from the recess to the aperture; the collar being releasably attachable to the housing, the at least one first air passage making fluid connection with the drill passage when it is attached to the housing to enable air to pass from the drill passage to the aperture.