Storage Device Automatic Bag Opening Rocker Arm Mechanism

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Solution Overview

Problem

Current household garbage systems require manual handling and frequent replacement of garbage bags, leading to poor user experience and environmental pollution due to low waste density.

Innovation Solution

A storage device with a barrel-shaped body, storage bag convey member, and a first driving part comprising a rotation part and rocker arm, which automatically opens and tightens storage bags by conveying them to the side edge of the barrel-shaped body, allowing for convenient automatic operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual handling of garbage bags is used, then device complexity is reduced, but ease of operation deteriorates due to frequent manual replacement

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The garbage can system performs automatic bag replacement without user intervention. The controller automatically detects when a bag is full, opens the lid, removes the full bag, and installs a new bag, enabling the system to serve itself and eliminate manual handling

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system prepares for bag replacement in advance by monitoring waste accumulation levels. When the bag approaches full capacity, the system proactively initiates the replacement sequence before complete fullness occurs, ensuring smooth operation without user intervention

Inventive Principle:
Principle #10Preliminary action

2Productivity

If manual removal of full garbage bags is required, then device complexity is reduced, but productivity deteriorates due to frequent intervention

Engineering Contradiction:
ImproveproductivityVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The automatic bag replacement system eliminates the need for user intervention in bag removal and installation. The controller autonomously manages the entire replacement process, significantly improving productivity by freeing users from this repetitive task

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system uses sensors to continuously monitor waste accumulation and provides feedback to the controller. This feedback mechanism enables the system to automatically determine when bag replacement is needed and execute the replacement sequence at optimal intervals, maximizing productivity

Inventive Principle:
Principle #23Feedback

3Quantity of substance

If garbage bags are replaced frequently due to low waste density, then storage capacity is effectively utilized, but loss of substance increases due to wasting garbage bags

Engineering Contradiction:
Improvequantity of substanceVSAvoidloss of substance
Core Design Contradiction:
Quantity of substanceVSLoss of substance

Solution Approach 1:

The weighing sensor continuously measures waste mass and provides feedback to the controller. This enables the system to track actual waste accumulation and determine the optimal moment for bag replacement, ensuring bags are used to full capacity and reducing premature replacement

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system monitors waste density and accumulation in real-time, preparing for bag replacement only when actually needed. This preliminary monitoring prevents premature replacement and ensures maximum utilization of each garbage bag's capacity

Inventive Principle:
Principle #10Preliminary action

4Ease of operation

If automatic bag opening and tightening is implemented, then ease of operation is improved, but device complexity increases due to additional mechanisms

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The bag opening and tightening functions are integrated into the same mechanical mechanism. The first driving part performs both operations sequentially using a unified structure, reducing overall system complexity compared to having separate mechanisms for each function

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The first driving part serves multiple functions: it opens the bag by pulling the sealing portion and later tightens the bag after replacement. This multi-functional component reduces the need for separate dedicated mechanisms, managing complexity while providing comprehensive automation

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 improves user satisfaction by automating the opening and tightening of storage bags, reducing the need for frequent replacements and minimizing environmental impact by maintaining waste density.

Implementation Method 1

the rocker arm is configured to rotate along the side wall under drive of the rotation part, so that an end of the storage bag is dragged to move along the side edge of the side wall away from the bottom board

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Data Source

PatentEP3640159B1Storage device
Publication Date: 2022.10.05 BOE TECHNOLOGY GROUP CO LTD
  • EP3640159B1 patent drawingFigure 1a~1b
  • EP3640159B1 patent drawingFigure 2a~2c
  • EP3640159B1 patent drawingFigure 3a~4b

AI summary

A storage device and a storage bag are provided. The storage device includes: a barrel-shaped body (100), including a bottom board (110) and a side wall (120) connected with the bottom board (110); a storage bag convey member (200), disposed an outer side of the side wall (120), and configured to convey a storage bag (210) to a side edge of the side wall (120) away from the bottom board (110); a first driving part (300), including a rotation part (310) and a rocker arm (320), the rotation part (310) being disposed on the bottom board (110), an end of the rocker arm (320) being connected with the rotation part (310), another end of the rocker arm (320) extending to a side of the side wall away (120) from the bottom board (110), and the rocker arm (320) being configured to rotate along the side wall (120) under driven of the rotation part (310), so that an end of the storage bag (210) is dragged to move along the side edge of the side wall (120) away from the bottom board (110) so as to open the storage bag (210) and/or tighten an opening of the storage bag (210) which is opened. The storage device provided by the present disclosure can be utilized to automatically open and/or tighten a storage bag, so as to bring convenience to users.