Device for detecting effective inner diameter of pipeline

Abstract

The invention provides a device for detecting the effective inner diameter of a pipeline. The device comprises a round installation tray provided with a bottom surface and a side wall, a bearing housing fixed on the installation tray, a main shaft arranged on the central axis of the bearing housing in a penetrating mode, a main scale vertically arranged on the main shaft in a penetrating mode andstretching out from one end of the upper surface of the bearing housing, two auxiliary scales respectively arranged at the two ends of the main scale and being capable of moving along the length direction of the main scale, and two laser emitters arranged on the two auxiliary scales and being capable of moving along the length direction of the auxiliary scales. By using the detection device, the collimation of the inner wall of the pipeline can be detected and can be further determined whether meeting the requirement of a required effective inner diameter, thereby detecting the installation quality of the pipeline, greatly improving measurement accuracy, reducing manpower labor intensity and avoiding waste of manpower and material resources.

Description

technical field [0001] The invention relates to the technical field of civil and construction engineering detection, in particular to a detection device for the effective inner diameter of a pipeline. Background technique [0002] In the existing civil engineering technology, it is usually necessary to construct a large number of long and straight pipeline works. However, in many straight engineering pipelines, for example, in long straight engineering pipelines composed of multi-section pipelines, due to various reasons such as manufacturing, installation, and transformation, the central axis of each single-section pipeline in the straight engineering pipeline is not completely on the same straight line. Therefore, when an object passes through the engineering pipeline in a straight line without touching the inner wall of the engineering pipeline, the maximum inner diameter that can be used is generally called the effective inner diameter. Therefore, the effective inside ...

AI Technical Summary

Problems solved by technology

However, due to the lack of quantitative control in the above method, the measurement process relies heavily on the experience and technology of the testing personnel, so the detection accuracy is not high

Moreover, in the installation process of long straight pipelines, with the assembly of multi-section pipelines, detection errors will continue to accumulate. When quality problems are found, it is often at the later stage of the project, and it is very inconvenient to adjust and move, and sometimes it has to be reinstalled. Setting up scaffolding for high-altitude operations will waste a lot of valuable manpower and material resources

[0005] In summary, due to the low measurement accuracy of the existing methods for measuring the alignment of the inner wall of long straight pipes, it is difficult to quantitatively detect the effective inner diameter of long straight pipes, and thus it is also difficult to accurately detect the inner wall of long straight pipes. Does the collimation meet the required effective inner diameter requirements

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