Pipeline sealing and blocking device

Abstract

The invention discloses a pipeline sealing and blocking device, and relates to the technical field of pipeline construction. The pipeline sealing and blocking device comprises an in-pipe sealing device and a positioning enhancing device, the in-pipe sealing device and the positioning enhancing device are connected through a equalization connecting device, and the in-pipe sealing device comprises acylindrical elastic airbag; an annular liquid storage bag is fixedly connected to the outer side of the elastic airbag in a sleeving mode, and the liquid storage bag is filled with a shear thickeningfluid; the positioning enhancing device comprises a mounting seat and a movable seat, supporting rods are evenly and rotatably connected to the side edge of the movable seat, the supporting rods arein one-to-one correspondence to fulcrum rods, the supporting rods penetrate through lantern rings, and friction blocks are connected to the outer ends of the supporting rods through rotating shafts; and the equalization connecting device comprises a total draw cord and a cord locking block, the total draw cord is fixedly connected with the right end of the movable seat, and the cord locking blockis fixedly connected the right end of the total draw cord. The pipeline sealing and blocking device has the beneficial effects that good sealing and positioning in the pipeline are achieved, the sealing and blocking device is suitable for pipelines with various pipe diameters, the sealing and blocking effect is good, operation is convenient, and the waste of liquid can be reduced.

Description

technical field [0001] The invention relates to the technical field of pipeline construction. Background technique [0002] Pipelines are an important part of urban infrastructure construction. They are highly efficient and convenient in transporting oil, water, and gas. However, pipelines often have faults such as damage and leakage. The upstream and downstream ports of the pipeline are sealed, and air bags and fixing devices are used to seal the outside of the port. However, under normal circumstances, the distance between the upstream and downstream ports of the pipeline is relatively long, which is inconvenient to operate and will cause a large amount of waste or disorderly discharge of liquid in the pipeline. , while the traditional ordinary air bag seal cannot achieve sealing and stable fixation inside the pipeline, it is easy to slide due to the thrust of the upstream liquid, and at the same time affect the sealing effect. Sealing can reduce waste discharge of liquid...

AI Technical Summary

Problems solved by technology

[0002] Pipelines are an important part of urban infrastructure construction. They are highly efficient and convenient in transporting oil, water, and gas. However, pipelines often have faults such as damage and leakage. The upstream and downstream ports of the pipeline are sealed, and air bags and fixing devices are used to seal the outside of the port. However, under normal circumstances, the distance between the upstream and downstream ports of the pipeline is relatively long, which is inconvenient to operate and will cause a large amount of waste or disorderly discharge of liquid in the pipeline. , while the traditional ordinary air bag seal cannot achieve sealing and stable fixation inside the pipeline, it is easy to slide due to the thrust of the upstream liquid, and at the same time affect the sealing effect. Sealing can reduce the waste of liquid discharge

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