Dust Collector Handle Locking for Leak-Free Separation

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Solution Overview

Problem

Conventional dust collectors for vacuum cleaners face issues with the handle or grip piece rotating unintentionally in a locking released state, leading to inconvenience and potential leakage of collected impurities or water, causing secondary contamination.

Innovation Solution

A dust collector with a handle unit featuring a rotating coupling member and a handle coupling member that includes fixing protrusions and a guide groove system, along with an elastic member, to securely lock and unlock the centrifugal separating tube and dust box, preventing unwanted rotation and leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the handle or grip piece is made separable for easy movement and coupling/separation, then ease of operation is improved, but the handle may rotate unintentionally in a locking released state causing inconvenience and potential leakage

Engineering Contradiction:
Improveease of coupling/separationVSAvoidstability in locking released state
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The handle unit incorporates a rotating coupling member that can dynamically transition between a locked position (where the handle is fixed relative to the dust box) and a unlocked position (where the handle can rotate for coupling/separation operations). This dynamic mechanism allows the system to adapt its stability characteristics based on operational needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a locking mechanism that proactively secures the handle in a fixed position after coupling operations are completed. This beforehand cushioning prevents potential unintended rotation and leakage by establishing a stable locked state before any harmful effects could occur.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Ease of operation

If the handle is made movable for easy separation, then ease of operation is improved, but unwanted opening of centrifugal separation assembly may occur causing leakage

Engineering Contradiction:
Improveease of separationVSAvoidleakage of impurities or water
Core Design Contradiction:
Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The rotating coupling member enables the handle to dynamically switch between a locked state (preventing unwanted opening and leakage) and an unlocked state (enabling intentional separation). This dynamic control allows easy separation when needed while preventing accidental leakage during normal operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The locking mechanism applies a preliminary anti-action by securing the handle in a fixed position that prevents unintended rotation and opening of the centrifugal separation assembly. This counteracts potential harmful movements before they can cause leakage of impurities or water.

Inventive Principle:
Principle #9Preliminary anti-action

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

Ensures easy coupling and separation of the dust collector units while preventing unwanted leakage, enhancing usability and maintaining cleanliness by securely locking the handle in both fixed and released positions.

Implementation Method 1

an elastic member to stop rotation of the handle according to a rotating direction of the handle

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a first separation structure including a first centrifugal separating tube which defines a first centrifugal separating area to separate dust contained in air introduced through a first inlet

Methodology Applied
Scientific EffectCentrifugal separation: Centrifugal Separation

Data Source

PatentUS8657899B2Dust collector comprising a handle unit and intended for a vacuum cleaner
Publication Date: 2014.02.25 SAMSUNG ELECTRONICS CO LTD
  • US8657899B2 patent drawing
  • US8657899B2 patent drawing
  • US8657899B2 patent drawing

AI summary

Disclosed is a dust collector provided with a dust-removing unit. The disclosed dust collector comprises: a first centrifugal separating tube defining a first centrifugal area for separating dust from air suctioned in through a first inlet; a first dust box for collecting dust separated in the first centrifugal area; a first detaching portion having a first exhaust pipe unit for exhausting the air from the first centrifugal separating tube and the first dust box to the outside; and a handle unit for maintaining the first centrifugal separating tube and the first dust box coupled together, or for releasing the coupling thereof.