Telescoping Dust Suction Device for Hand-Held Drilling Machines
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Solution Overview
Problem
Existing dust suction devices for hand-held drilling machines often require adaptation to fit different drilling machine models and lack efficient mechanisms for automatic activation and adjustment, leading to reduced usability and effectiveness in debris collection.
Innovation Solution
A dust suction device with a telescoping suction pipe, an electric motor-driven suction fan, and a support frame that attaches to the drilling machine's clamping neck, featuring adjustable and detachable components, including a dust collection container and a switching mechanism for automatic motor activation, allowing for easy attachment and operation across various drilling machine models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed suction pipe design is used, then the device structure is simple, but it cannot adapt to different drilling machine models and drilling depths
Solution Approach 1:
The suction pipe is designed as a telescopic structure with multiple sections that can extend and retract, allowing the pipe length to be dynamically adjusted according to different drilling depths and machine configurations, thereby achieving adaptability without requiring multiple fixed-size pipes
Solution Approach 2:
The suction pipe is divided into multiple telescopic sections that can independently move relative to each other, enabling flexible length adjustment while maintaining structural integrity through connection elements like springs and locking mechanisms
2Productivity
If manual motor activation is used, then the control mechanism is simple, but the dust collection efficiency is reduced due to delayed or inconsistent activation
Solution Approach 1:
The system automatically activates the motor when the telescopic suction pipe is extended during drilling operation, eliminating the need for manual switching. The extension action itself triggers the motor activation through a switch mechanism, making the system self-controlling and improving dust collection efficiency
Solution Approach 2:
The switch mechanism detects the telescopic state of the suction pipe and provides feedback to control motor activation. When the pipe is extended, the switch closes the circuit to activate the motor, ensuring dust collection is synchronized with the actual drilling operation
3Reliability
If the suction pipe is constantly activated, then dust collection is continuous, but energy is wasted during non-drilling periods
Solution Approach 1:
The motor operates periodically based on the telescopic state of the suction pipe rather than continuously. The motor is activated only when the pipe is extended during drilling and deactivated when retracted, creating a periodic on-off operation pattern that reduces energy consumption while maintaining dust collection reliability during actual drilling operations
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 device provides efficient dust and debris collection with adjustable fitment to different drilling tools and automatic motor activation, enhancing usability and effectiveness in various drilling applications without the need for extensive adaptation, ensuring reliable operation and easy disposal of collected materials.
Implementation Method 1
a suction fan driven by the electric motor and operable to generate a vacuum in the suction pipe
Data Source
AI summary
A dust suction device for detachable attachment to a hand-held drilling machine includes a housing, a telescoping suction pipe coupled to the housing, an electric motor positioned in the housing, a suction fan driven by the electric motor and operable to generate a vacuum in the suction pipe, a dust collection container coupled to the housing and positioned upstream of the suction fan, and a support frame. The support frame includes a first portion coupled to the housing, a second portion coupled to a neck of the drilling machine, and an auxiliary handle extending from one of the first and second portions of the support frame. The support frame supports the drilling machine in a side-by-side relationship with the dust suction device.