Strong airtightness pipeline double-way plugging device and use method thereof

Abstract

The invention discloses a strong airtightness pipeline double-way plugging device. The strong airtightness pipeline double-way plugging device comprises a rubber plugging piece and an extrusion acting force pressing plate, the rubber plugging piece comprises an inner rubber plugging piece and an outer rubber plugging piece, an opening is arranged on each of the inner rubber plugging piece and the outer rubber plugging piece, the opening of the outer rubber plugging piece is formed by overlapping an inner connecting block and an outer connecting block, and the thickness of the inner connecting block and the outer connecting block is half the thickness of the outer rubber plugging piece. The strong airtightness pipeline double-way plugging device has the advantages that when the outer rubber plugging piece deforms, no crack is produced in the opening, and the airtightness is strong; two clamping grooves are arranged on the extrusion acting force pressing plate and are respectively connected with the inner rubber plugging piece and the outer rubber plugging piece, so that the connection between the extrusion acting force pressing plate and the rubber plugging piece is higher in airtightness; the rubber plugging piece and the extrusion acting force pressing plate are fixed through a bolt in advance, no field installation is needed, and the extrusion acting force pressing plate fixed by the bolt can also be opened, and sleeves a cable together with the rubber plugging piece, so as to be convenient in use.

Description

technical field [0001] The invention relates to a pipeline occluder and its use method, in particular to a pipeline bidirectional occluder with strong sealing performance and its use method. Background technique [0002] With the advancement of my country's urbanization and modernization process, the construction of urban underground pipelines is developing very rapidly. Urban underground pipelines are responsible for the city's power transmission, information transmission, energy transmission, waterlogging and disaster reduction, waste disposal and other functions, and are the city's survival It is an important part of urban infrastructure, an important foundation and guarantee for the development of urban functions, ensuring the healthy, coordinated and sustainable development of social economy and urban construction. Urban underground pipelines are like "vessels" in the human body And "nerve", known as the "lifeline" of the city, but there are more and more problems in the ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, it is customary to use traditional methods such as fireproof mud, cement, yellow sand, etc. to seal the pipe opening. This kind of method is too wasteful of materials and labor, especially the work efficiency is too poor, and it is often caused by thermal expansion and contraction, vibration of cables and the periphery. If there is a crack or even falls off, if it is necessary to remove the plug of the pipe mouth during emergency repair and maintenance, the fireproof mud, cement, yellow sand and other materials have hardened, which is extremely difficult to remove and clean, and it is easy to damage the insulation layer of the pipe and cable. Now it is a difficult problem to solve in the actual construction operation. At present, flexible seals are also used to block pipelines. The principle is to put the flexible seals into the cable tube, and then tighten the bolts of the connecting parts to force the flexible seals to deform. The inner circumference of the flexible seal is close to the surface of the cable and the outer circumference of the flexible seal is close to the inner wall of the cable tube, thereby forming a seal inside and outside the cable tube. In this process, an opening needs to be cut out of the flexible seal , to facilitate its entry into the cable duct. In this case, there will be a problem, that is, when the bolts of the connector are tightened to deform the flexible seal, cracks will appear at the opening, resulting in poor sealing, and the connector and the flexible seal There will also be problems with poor sealing of the connection between

[0005] In the existing sealing structure of flexible seals, the flexible seals are cut first, put on the cables, and then the pressure plates of the extrusion force are pressed on the upper and lower ends of the flexible seals, and the bolts pass through the flexible seals. The parts and the extrusion pressure plate are integrated and then slide along the cable into the pipe, which is very troublesome to install and use

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