Automatic packaging mechanism and intelligent waterless toilet

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Solution Overview

Problem

Existing automatic packaging mechanisms for waterless toilets have complex structures, high costs, and suffer from sealing defects and inefficient space utilization due to air-filled garbage bags.

Innovation Solution

An automatic packaging mechanism with a hot melting assembly, gathering assembly, and buffer assembly that integrates a buffer assembly with an elastic member to ensure even heating and prevent sticking, along with a rotary base for orientation adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If two sealing devices and a heating element are used for packaging, then the garbage bag can be sealed and cut off, but the structure becomes complex and packaging cost increases

Engineering Contradiction:
Improvesealing reliabilityVSAvoidpackaging mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the sealing and cutting functions into a single integrated heating element. The heating element serves dual purposes: sealing the garbage bag by melting the material and cutting it off by creating a separation point. This eliminates the need for separate sealing devices and reduces structural complexity while maintaining packaging reliability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The heating element is designed to perform multiple functions within the packaging mechanism. It acts as both a sealing tool and a cutting tool, and also serves as a heating source for the entire packaging process. This multi-functionality reduces the number of components needed and simplifies the overall device structure

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

2Reliability

If the garbage bag is sealed with air inside, then the packaging is complete, but the volume increases and space is wasted

Engineering Contradiction:
Improvepackaging completenessVSAvoidpackaged garbage bag volume
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent implements preliminary compression of the garbage bag before final sealing. The compression mechanism removes air from the bag and compresses the contents beforehand, so that when the bag is sealed, it already has reduced volume. This preliminary action prevents air entrapment and ensures compact packaging from the start

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the garbage bag is heat-sealed directly without buffering, then the sealing process is fast, but the bag sticks to the heating element causing sealing defects

Engineering Contradiction:
Improvesealing speedVSAvoidsealing quality
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent introduces a buffer assembly as an intermediary between the heating element and the garbage bag. This buffer assembly includes a buffer plate and elastic member that provide controlled buffering during the heat-sealing process. The buffer prevents direct sticking while maintaining sufficient contact pressure for reliable sealing, and includes anti-sticking measures to prevent adhesion issues

Inventive Principle:
Principle #24Intermediary (Mediator)

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 mechanism provides reliable, efficient, and cost-effective packaging with reduced volume and improved space utilization, while allowing easy orientation adjustment for user convenience.

Implementation Method 1

the heating structure is configured to seal an upper end of the garbage bag containing excrement and a lower end of a new garbage bag, and at the same time, cut the sealed garbage bags apart from each other through melting

Methodology Applied
Scientific EffectHeat melting: Melting

Data Source

PatentEP4647353A2Automatic packaging mechanism and intelligent waterless toilet
Publication Date: 2025.11.12 JIANGSU SANJO INTELLIGENT TECH CO LTD
  • EP4647353A2 patent drawingFigure 1
  • EP4647353A2 patent drawingFigure 2
  • EP4647353A2 patent drawingFigure 3~4

AI summary

An automatic packaging mechanism and an intelligent waterless toilet are provided. The automatic packaging mechanism includes a hot melting assembly (1), a gathering assembly (2), and a buffer assembly (4). The hot melting assembly includes a hot melting base (11) and a heating structure. The heating structure is arranged on the hot melting base. The gathering assembly (2) includes a gathering base (21) and a pressing base (22). The pressing base is arranged on the gathering base. A garbage bag passage (3) is formed between the pressing base and the heating structure. A material strip of a garbage bag opened passes through the garbage bag passage.