Telescopic Dust Extractor Arm for Hammer Drill Compatibility
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Solution Overview
Problem
Existing dust extractors for hammer drills do not effectively manage dust generated during operation, leading to environmental contamination and health hazards for operators, and may not be universally compatible with different hammer drill designs.
Innovation Solution
A dust extractor design featuring a telescopic arm with a latch mechanism and fan wheel, which automatically engages with the hammer drill, providing efficient dust collection and suction, and an adaptable mechanism for compatibility with various hammer drill lengths and power sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed-length telescopic arm is used in the dust extractor, then the structure is simple, but it cannot accommodate different hammer drill lengths and designs
Solution Approach 1:
The telescopic arm is designed with dynamic adjustability, allowing it to extend and retract to different lengths. This dynamic structure enables the dust extractor to accommodate various hammer drill lengths and designs while maintaining a relatively simple base structure that can be adjusted as needed.
Solution Approach 2:
The telescopic arm is divided into multiple segments that can slide relative to each other. This segmentation allows the arm to achieve different lengths through telescopic movement, providing adaptability to different hammer drill configurations without requiring a completely different structure for each application.
2Ease of operation
If a latch mechanism is added to automatically engage the dust extractor with the hammer drill, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The latch mechanism is designed to automatically engage when the dust extractor is brought near the hammer drill. The system uses the relative movement between the two components to trigger the latching action, eliminating the need for manual intervention and providing self-service attachment functionality.
Solution Approach 2:
The latch mechanism is pre-positioned and spring-loaded to be ready for engagement. When the dust extractor approaches the hammer drill, the latch automatically activates to secure the connection, performing the attachment action in advance before the user needs to use the tool.
3Productivity
If the dust extractor is designed to collect all generated dust, then dust collection effectiveness is improved, but the dust collection box size and device volume increase
Solution Approach 1:
The dust extractor uses a suction device that generates a vacuum to draw dust particles through a collection system. This pneumatic approach allows for efficient dust collection with a compact box design, as the suction force can capture dust particles effectively without requiring a excessively large collection volume.
Solution Approach 2:
The system employs a filter with porous structure that allows air to pass through while trapping dust particles. This porous filtration approach enables effective dust collection in a compact configuration, as the filter material provides large surface area for particle capture within a small volume.
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 collects dust, reduces health risks, and ensures easy attachment and detachment, while accommodating different hammer drill designs through an adjustable adapter system, ensuring reliable operation across multiple power configurations.
Implementation Method 1
The air suction device draws the air together with dust from within shroud, through the telescopic arm into the dust collection box
Implementation Method 2
a fan rotatably mounted within the main body of the dust extractor adjacent the filter. The fan is rotatably driven by a motor to generate an air vacuum source
Data Source
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AI summary
A dust extractor comprising a main housing (22); a telescopic tubular extension arm (28, 30) comprising a first forward section (28) which is capable of sliding into or out a second rear section (30) between a first inner position and a second outer position, the second rear section(30) being mounted onto the main housing (22); a shroud (32) mounted on one end of the first forward section which is remote from the second rear section (30); a biasing force which urges first forward section (28) to slide out of the second rear section (30) towards its second outer position; and a dust collection box mounted on main housing; characterised in that the stroke length 508 of the telescopic extension arm (28, 30) is greater than 150mm, and preferably greater than 170 mm, and preferably greater 175 mm and ideally 177mm or greater. The dust extractor can have a suction force which is experienced through the telescopic extension arm 28, 30 and/or shroud 32 which is preferably greater than 1.5MPa (Megapascal), and preferably greater than 1.8MPa and is preferably is equal to or greater than 2.0MPa.