Detection Probe Rope Transmission for Compact Acoustic Head Drive

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Solution Overview

Problem

Existing detection probes face challenges in transmitting driving force to the acoustic head assembly due to structural and spatial limitations, affecting the accuracy and comprehensiveness of detection results.

Innovation Solution

A detection probe design incorporating a transmission device with a gear transmission mechanism and a rope transmission mechanism, including a gear rotation mechanism and a rope pulley system, to efficiently transmit power to the detection mechanism, ensuring smooth oscillation of the transducer and accurate detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a transmission mechanism is added to drive the acoustic head assembly to oscillate, then detection accuracy and comprehensiveness are improved, but device complexity increases

Engineering Contradiction:
Improvedetection accuracyVSAvoidtransmission mechanism complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent integrates the transmission mechanism within the probe handle structure, nesting the driving components inside the existing housing. The driving mechanism is positioned within the handle assembly, and the transmission elements are arranged concentrically or in nested configurations to maximize space utilization while maintaining structural integrity

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The patent employs a flexible transmission medium (such as a push-pull wire or flexible rod) that transmits driving force from the handle to the acoustic head assembly through a three-dimensional path within the probe shaft. This allows the transmission mechanism to operate in multiple spatial dimensions, enabling oscillation control without requiring complex mechanical linkages in a single plane

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

2Weight of moving object

If the probe structure is made compact and lightweight, then portability is improved, but transmitting driving force to the acoustic head assembly becomes more difficult

Engineering Contradiction:
Improveprobe weightVSAvoiddriving force transmission
Core Design Contradiction:
Weight of moving objectVSForce

Solution Approach 1:

The patent utilizes a push-pull wire mechanism that functions on elastic deformation principles, where the wire is tensioned and compressed to transmit driving force. This elastic transmission method is more efficient than rigid mechanical linkages, allowing effective force transmission through a lightweight, flexible medium that adds minimal weight to the probe structure

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent employs a flexible transmission element with optimized material properties and dimensional parameters. The push-pull wire or flexible rod is designed with specific diameter, length, and material characteristics that balance flexibility for compact packaging with sufficient mechanical strength to transmit the required driving force to the acoustic head assembly

Inventive Principle:
Principle #35Parameter changes

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 proposed design enhances the accuracy and portability of detection probes by effectively transmitting driving force to the acoustic head assembly, improving detection results while maintaining a compact and lightweight structure.

Implementation Method 1

a gear transmission mechanism and a rope transmission mechanism, including a gear rotation mechanism

Methodology Applied
Scientific EffectGear transmission: Gear

Implementation Method 2

a gear transmission mechanism and a rope transmission mechanism, including a gear rotation mechanism

Methodology Applied
Scientific EffectPulley: Pulley

Data Source

PatentEP4316379B1Detection probe and detection instrument
Publication Date: 2025.08.20 EDAN INSTR
  • EP4316379B1 patent drawingFigure 1~2
  • EP4316379B1 patent drawingFigure 3
  • EP4316379B1 patent drawingFigure 4~5

AI summary

A detection probe (1000), a transmission device (300), and a detection instrument. The detection probe (1000) comprises a housing (100), a detection mechanism (200), a drive mechanism (400), and a rope transmission mechanism (330). An accommodation space (110) is defined in the housing (100). The detection mechanism (200) is located at one end of the housing (100), and is used to perform a detection function. The drive mechanism (400) is located in the accommodation space (110), and is used to output power. The rope transmission mechanism (330) is located in the accommodation space (110) and comprises a rope (332) and a commutation component (333). The rope (332) is separately connected to the drive mechanism (400) and the detection mechanism (200), and is used to receive the power outputted by the drive mechanism (400), and transmit same to the detection mechanism (200), so as to drive the detection mechanism (200) to move. The commutation component (333) comprises two commutation wheel groups disposed along the extension path of the rope (332); the rope (332) sequentially winds about the two commutation wheel groups to change the transmission direction under the action of the two commutation wheel groups. The detection probe (1000), the transmission device (300), and the detection instrument can meet use requirements.