Cleaner Chassis and Dustpan Structure for Jumping Obstacles

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Solution Overview

Problem

Conventional cleaners are unable to navigate over obstacles due to their fixed and low-profile design, which causes them to become blocked by objects like pencils or small nails.

Innovation Solution

A cleaner with a movable chassis and a dustpan board mounted on long posts and springs, allowing the chassis to rise and the dustpan board to bend backward when encountering an obstacle, enabling it to jump over the obstruction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the cleaner uses a fixed and low-profile design, then it can move normally on flat surfaces, but it becomes blocked by obstacles like pencils or small nails

Engineering Contradiction:
Improvemovement on flat surfaceVSAvoidability to navigate obstacles
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The chassis is designed to be movable rather than fixed, allowing it to rise and fall dynamically in response to obstacles. The hollow post can move vertically within the sleeve, enabling the chassis to adapt its height automatically when encountering obstacles on the floor

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The height parameter of the chassis is made variable through the movable hollow post mechanism. The chassis can change its vertical position from a low profile (0.3-0.5cm from ground) to a raised position, allowing it to clear obstacles while maintaining ease of movement on flat surfaces

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If the cleaner encounters a bigger obstacle, then it can jump over the obstruction, but the dustpan board must be bent backward which adds structural complexity

Engineering Contradiction:
Improveability to jump obstaclesVSAvoidstructure with springs and long posts
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The dustpan board is designed with flexibility, mounted on long posts that allow it to bend backward when the chassis rises over obstacles. This flexible design enables the dustpan to clear obstacles without requiring complex rigid mechanical structures

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

Springs are incorporated into the mounting structure of the dustpan board to provide cushioning and restore the board to its original position after it bends backward during obstacle clearance, reducing stress on the structure

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

3Adaptability or versatility

If the hollow post moves up and down freely in the sleeve, then the chassis can adapt to obstacles, but the connection between the main body and chassis becomes more complex

Engineering Contradiction:
Improvemovability of chassisVSAvoidhook element connection
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The connection between the hollow post and sleeve is designed to be dynamically movable rather than rigidly fixed. The hook element allows vertical movement while maintaining connection, enabling the chassis to rise and fall freely in response to obstacles

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The hook element acts as an intermediary component between the hollow post and sleeve, providing a simple mechanical connection that allows vertical movement while maintaining structural integrity, avoiding the need for complex joints or fastening mechanisms

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

Enables the cleaner to effectively clear obstacles by allowing the chassis and dustpan board to adjust and return to their original positions, ensuring continuous operation.

Implementation Method 1

springs (124)

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

The hollow post and the sleeve are moveable with each other, such that the hollow post can move up and down in the sleeve freely

Methodology Applied
Scientific EffectMechanical motion:

Data Source

PatentUS7318248B1Cleaner having structures for jumping obstacles
Publication Date: 2008.01.15 HUNAN GRAND PRO ROBOT TECH
  • US7318248B1 patent drawing
  • US7318248B1 patent drawing
  • US7318248B1 patent drawing

AI summary

A cleaner having structures for jumping obstacles is provided. A lower portion of a main body of the cleaner is disposed with a movable chassis, and the center of the chassis is formed with a hollow post that is to be inserted in a sleeve of the main body of the cleaner and is hooked by a hook element. The hollow post and the sleeve are moveable with each other, such that the hollow post can move up and down in the sleeve freely. A movable dustpan board is mounted on a front periphery of the chassis by long posts and springs.