Non-uniform pipe airtightness external detection device

Abstract

The invention is applicable to the technical field of pipeline detection, and provides an external detection device for airtightness of non-uniform pipelines, including a sleeve, a fixing device, a detection device and a supporting device, the fixing device includes a fixing part and a sealing part, and the detection device includes a pressure gauge , a pressure relief valve and a booster device; the supporting device includes a supporting rod, a supporting frame, a driving rod, a driven rod and a power part; There are several second fixed blocks on the upper part, and the second fixed block is connected to the right support bar through a limit device. The limit device includes a vertical rod, a limit plate, a baffle and a limit protrusion. The upper end of the vertical bar is connected to the first Two fixed blocks, the limit plate includes a straight section and an arc section, at least two limit plates are provided, an arc edge is provided on the baffle, and the baffle is connected to the right support rod through an elastic piece. Thereby, the present invention can detect the airtightness of pipelines with different diameters, and improve the detection efficiency and detection quality.

Description

Technical field [0001] The invention relates to the technical field of pipeline detection, in particular to an external detection device for the tightness of pipelines with different diameters. Background technique [0002] At present, the pipe end welding, welding seam and socket interface of pipelines, especially large-diameter pipelines, are mainly used for internal pressure detection, and the pressure equipment for detecting large-diameter pipelines is huge and inconvenient to move, which is a large-diameter pipeline. The pipeline pressure test at the pipeline construction site brings inconvenience. When there are objections to the local pressure resistance index and leakage of large-diameter pipelines, it is difficult to detect and experiment with existing equipment. Some equipment in the prior art can realize rapid transportation and reduce work efficiency, but it can only perform tightness testing for a certain diameter of the pipeline. When testing different pipelines, d...

AI Technical Summary

Problems solved by technology

Some equipment in the prior art can realize fast handling and reduce work efficiency, but it can only detect the airtightness of pipelines with a certain diameter. When testing different pipelines, different detection equipment needs to be replaced, which increases the cost and reduces the cost. work efficiency

[0003] In summary, there are obviously inconveniences and defects in the actual use of the existing technology, so it is necessary to improve

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