Drilling Device Detachable Dust Collection Case Sealing
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Solution Overview
Problem
Conventional drilling devices face challenges in securely attaching and sealing dust collection cases, leading to inefficiencies in dust collection and potential dust leakage during the drilling process.
Innovation Solution
The drilling device incorporates a detachable dust collection case with a support member that can retract in stages, a seal member to prevent dust leakage, and a filter system for enhanced dust collection efficiency, allowing for easy attachment and operation in various modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a dust collection case is detachably attached to the main housing, then ease of operation is improved, but reliability deteriorates due to potential dust leakage during vibration
Solution Approach 1:
The patent applies preliminary action by providing engagement protrusions and recesses that are pre-positioned on the dust collection case and main housing. These features automatically align and engage when the dust collection case is attached, ensuring proper sealing and connection before the drilling operation begins, thus preventing dust leakage while maintaining ease of attachment
Solution Approach 2:
The patent uses an intermediary sealing member positioned between the dust collection case and main housing. This sealing element acts as a mediator that ensures dust-tight sealing while allowing the detachable connection to be easily made and removed by the user
2Reliability
If the dust collection case is firmly sealed to prevent dust leakage, then reliability is improved, but ease of operation deteriorates due to difficulty in attachment and detachment
Solution Approach 1:
The engagement protrusions and recesses are pre-positioned and shaped to guide the dust collection case into correct alignment during attachment. This preliminary positioning ensures that the sealing surfaces engage properly without requiring excessive force or complex alignment procedures by the user
Solution Approach 2:
The patent employs a dynamic engagement mechanism where the engagement protrusions and recesses allow for slight movement and self-adjustment during attachment. This dynamic feature enables the connection to be made easily while still achieving a firm, dust-tight seal once engaged
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
This configuration ensures higher dust collection efficiency and operating efficiency while preventing dust leakage, even during vibrations, and allows for easy attachment and detachment of the dust collection case.
Implementation Method 1
When the fan is driven, dust is drawn and collected through the dust-collection adapter and the dust-collection pipe into the housing
Data Source
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AI summary
A drilling device includes an end cutting tool, a main housing, a motor, a transmission, and a dust collection unit. The end cutting tool processes a workpiece. The motor is provided in the main housing for generating a torque. The transmission transmits the torque to rotate the end cutting tool. The dust collection unit collects dust generated by the rotation of the end cutting tool. The dust collection unit includes a dust case for accumulating the dust therein. The dust case is detachable from the main housing and having an inlet and an outlet. The inlet and the outlet are oriented in a single direction.