Railway Bridge Duct Concrete Compactness Detection Probe
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Solution Overview
Problem
Existing duct concrete compactness detection methods face challenges in accuracy and convenience, especially when concrete structures lack facades or require timely testing during construction, leading to increased operational difficulty and reduced precision due to interference from prefabricated pipe parts.
Innovation Solution
A detection apparatus and system for railway bridge duct concrete compactness, featuring a probe with a vibration hammer, a bearing plate, and a transportation structure that includes a reciprocating screw, outer cylinder, and photoelectric switches, allowing for precise data collection within pipes by synchronizing the probe's movement with the vibration hammer's knocks and adapting to different pipe diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If testing points are set on the concrete facade, then the detection can be performed easily, but the detection accuracy is reduced due to interference from prefabricated pipe parts
Solution Approach 1:
The patent inverts the traditional testing approach by moving the probe from the concrete facade to the interior of the pipe. Instead of testing from the outside surface where interference occurs, the probe is inserted into the pipe to test the concrete from the inside, eliminating interference from prefabricated pipe parts and improving measurement accuracy.
Solution Approach 2:
The patent introduces a transportation structure as an intermediary mechanism that carries the probe through the pipe. This transportation structure includes a reciprocating screw mechanism that precisely positions the probe at multiple equidistant points within the pipe, enabling accurate data collection without manual intervention.
2Adaptability or versatility
If testing points are set inside the pipe for structures without facades or during construction, then timely testing is enabled, but the operational difficulty increases sharply
Solution Approach 1:
The transportation structure performs self-service by automatically transporting the probe along the pipe and positioning it at multiple equidistant testing points. The reciprocating screw mechanism enables the system to move the probe precisely without requiring manual repositioning, making the operation simple despite the complex internal pipe environment.
Solution Approach 2:
The detection apparatus is designed with universal applicability to work in both pipe interiors and on concrete facades. The transportation structure can be adapted to different pipe diameters, and the probe can be positioned flexibly to accommodate various construction stages and structural conditions.
3Quantity of substance
If multiple equidistant testing points are collected manually, then comprehensive data is obtained, but the data accuracy is difficult to control
Solution Approach 1:
The patent replaces manual mechanical positioning with a precision mechanical transportation system. The reciprocating screw mechanism provides controlled, equidistant movement of the probe along the pipe, ensuring that each testing point is positioned accurately and consistently, thereby improving data accuracy control.
Solution Approach 2:
The transportation structure implements periodic action by moving the probe to predetermined equidistant points in regular intervals. This periodic positioning ensures comprehensive coverage of the pipe interior with uniformly distributed testing points, obtaining comprehensive data with controlled accuracy.
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
Enhances data collection convenience and accuracy by enabling the probe to fit within pipes and collect data at multiple equidistant points, improving the practicality and precision of duct concrete compactness detection compared to existing methods.
Implementation Method 1
A tail end of the probe is movably connected with a reciprocating screw, an outer side of the reciprocating screw is rotationally connected with an outer cylinder, the reciprocating screw performs an axial reciprocating motion together with the probe under the rotating action of the outer cylinder
Implementation Method 2
a vibration hammer used in combination with the probe
Implementation Method 3
the stress wave is propagated to the inside of a structure, reflected back by a component bottom surface or a defective surface
Implementation Method 4
One side of the probe is provided with photoelectric switches, the photoelectric switches are used in cooperation with the one-way limiting structure, a slipping sheet that displaces synchronously with the probe is disposed on one side of the probe, the slipping sheet is used in fit with the photoelectric switches
Implementation Method 5
the winding rod is in drive connection with the outer cylinder through an O-shaped conveyor belt
Data Source
AI summary
A detection apparatus for a railway bridge duct concrete compactness includes a probe and a vibration hammer, where a bearing plate is disposed below the probe and the vibration hammer, and a transportation structure is disposed below the bearing plate while a girder is disposed above the bearing plate; a tail end of the probe is provided with a reciprocating screw and an outer cylinder, the outer cylinder is in drive connection with the transportation structure, a winding rod for controlling the position of the vibration hammer is disposed below the vibration hammer, and photoelectric switches are disposed on one side of the probe.