Inspection Robot Lift Mechanism for Wide-Range Height Imaging

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Solution Overview

Problem

The use of multiple image acquisition devices on inspection robots to cover different height spaces increases the cost and complexity of the inspection process.

Innovation Solution

A lifting apparatus for inspection robots, comprising a mounting base, electric cylinder, side rail, supporting slide rail, and driving mechanism, which allows a single image acquisition device to achieve a large stroke and range of motion, reducing the need for multiple devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple image acquisition devices are arranged along the height direction to cover different height spaces, then the inspection range and height coverage are improved, but the cost and device complexity increase

Engineering Contradiction:
Improveheight coverage rangeVSAvoidnumber of image acquisition devices
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by implementing a movable lifting mechanism that allows a single image acquisition device to dynamically change its height position. The device can be lifted and lowered along a guide rail to cover different height spaces, replacing the need for multiple fixed devices. This dynamic repositioning capability enables one device to perform the function of multiple devices while reducing system complexity and cost.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies the dimensionality change principle by introducing the height dimension as a movable degree of freedom. Instead of having multiple devices fixed at different heights, the system uses a single device that can move along the height dimension via the lifting mechanism (electric cylinder, guide rail, sliding block). This transforms the problem from a multi-device spatial arrangement to a single-device temporal-spatial repositioning solution.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If multiple image acquisition devices are used to achieve image data acquisition in the height direction, then the inspection efficiency is improved, but the robot size and cost increase

Engineering Contradiction:
Improveinspection efficiencyVSAvoidrobot size
Core Design Contradiction:
ProductivityVSVolume of moving object

Solution Approach 1:

The patent applies the merging principle by combining multiple image acquisition functions into a single device that can be repositioned. Instead of having multiple devices simultaneously occupying different height positions, the system merges their functions into one device that sequentially accesses different heights through the lifting mechanism. This reduces the robot's volume while maintaining the ability to inspect multiple height levels, thereby improving inspection efficiency without increasing size.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If a single image acquisition device is used, then the cost and device complexity are reduced, but the height coverage and inspection range are limited

Engineering Contradiction:
Improvenumber of devicesVSAvoidheight coverage range
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies the intermediary principle by introducing a lifting mechanism (comprising electric cylinder, guide rail, and sliding block) as an intermediary system between the single image acquisition device and the inspection space. This intermediary mechanism enables the device to access different height positions, effectively extending its coverage range without requiring multiple devices. The lifting mechanism acts as a mediator that bridges the gap between the limited static position of a single device and the required multi-height inspection capability.

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 lifting apparatus enables efficient image data collection over a large range with a single device, reducing the size and cost of the inspection robot by utilizing a primary and secondary lifting mechanism.

Implementation Method 1

an electric cylinder with a first end and a second end opposite to the first end, with the first end being connected with the mounting base; a side rail, connected with the mounting base; a supporting slide rail, slidably connected with the side rail and connected with the second end of the electric cylinder, so that the electric cylinder drives the supporting slide rail to slide relative to the side rail

Methodology Applied
Scientific EffectElectric cylinder actuation: Linear Motor

Implementation Method 2

a driving mechanism, mounted to the supporting slide rail; and a slide, configured to mount an image acquisition device, where the slide is connected with the driving mechanism, and the slide is slidably connected with the supporting slide rail

Methodology Applied
Scientific EffectMechanical transmission: Gear

Data Source

PatentEP4000819B1Inspection robot and lifting apparatus thereof
Publication Date: 2025.07.30 JD DIGITS HAIYI INFORMATION TECHNOLOGY CO LTD
  • EP4000819B1 patent drawingFigure 1
  • EP4000819B1 patent drawingFigure 2~3
  • EP4000819B1 patent drawingFigure 4

AI summary

An inspection robot and a lifting apparatus thereof. When the inspection robot (1) collects image data in a height direction of the inspection robot (1) and in a large range, this can be implemented by the lifting apparatus (13) without need to set multiple image acquisition devices (15) in an upper and down direction, which is beneficial to reduce the cost of the inspection robot (1). Moreover, in the lifting apparatus (13), a slide (143) and an image requisition device (15) mounted on the slide (143) can slide up and down relative to a supporting slide rail (133), and the supporting slide rail (133) can drive the slide (143) and the image requisition device (15) mounted on the slide (143) to slide up and down relative to a side rail (132), so that not only the slide (143) and the image acquisition device (15) mounted on the slide (143) have a large stroke, but also it is beneficial to reduce the size of the lifting apparatus, and further beneficial to reduce the cost.