Sealing test device for sectional type large-diameter pipeline joint

Abstract

The invention relates to a sealing test device for a sectional type large-diameter pipeline joint. The sealing test device comprises a supporting body, a water pressure source, an extension mechanism,an arc-shaped base and an extension frame, the supporting body is arranged in the pipe wall, the base is arranged on the inner wall of the supporting body, the two ends of the extension frame are rotationally connected with the two ends of the base respectively, one end of the extension mechanism is rotationally connected with the inner wall of the base, and the other end of the extension mechanism is rotationally connected with the middle of the extension frame. Arc-shaped containing grooves are formed in the outer side walls of the base and the extension frame correspondingly, the outer sides of the containing grooves of the base and the extension frame are sleeved with annular rubber film rings, the middles of the outer side walls of the rubber film rings are concavely arranged to formwater pressure grooves, the water pressure grooves are right opposite to the pipeline joint, and the water pressure source communicates with the water pressure grooves. Independent pressurization detection can be carried out on the joint between the pipelines, a large amount of water does not need to be pumped into the whole pipelines, the water source can be saved, the water flow pumping time isshortened, water leakage points can be rapidly and accurately withdrawn, and the detection efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a sealing test device for segmented large-diameter pipe joints. Background technique [0002] When carrying out the hydrostatic test on the water pipe, it is mainly to waterproof the two ends of a section of pipe, and then pump a certain amount of water into the pipe, so that the water pumped into the pipe will generate a certain pressure on the inner wall of the pipe and pass through the water. Observe the injection water pressure with the pressure gauge, and then observe whether there is water seepage from the joints at both ends of the pipeline. The time course affects the detection efficiency of water pipes, and it is difficult to judge the leak point. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sealing test device for segmented large-diameter pipe joints in view of the above-mentioned deficie...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a sealing test device for segmented large-diameter pipe joints in view of the above-mentioned deficiencies in the prior art. , due to the long pipeline, the amount of water injected into the pipeline is too much, which is easy to cause waste of water resources, and the pumping time is too long, which affects the detection efficiency of the water pipe, and it is difficult to judge the problem of water leakage

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