Natural gas pipeline plugging and connecting device

Abstract

The invention discloses a natural gas pipeline plugging and connecting device. The natural gas pipeline plugging and connecting device comprises a matching pipe, wherein a traction plate is arranged in the middle of the top of the matching pipe, a knob plate is movably connected to the end, located at the top of the matching pipe, of the traction plate, a sealing plug is movably connected to the inner surface of the knob plate, a traction rope is movably connected to the bottom, located at the bottom of the matching pipe, of the traction plate, a locking mechanism is movably connected to the end, far away from the traction plate, of the traction rope, a fixed locking plate is movably connected to the inner surface of the locking mechanism, a threaded limiting groove is formed in the outer surface of the fixed locking plate, and a guide wheel is movably connected to the position, located at the traction rope, of the bottom of the outer surface of the matching pipe. The invention relates to the technical field of natural gas pipelines. The overall cylindrical design is utilized, so that the size of the occupied portions of equipment components is reduced; and meanwhile, the natural gas pipeline plugging and connecting device is matched with the natural gas pipeline, so that unnecessary height adjustment of the natural gas pipeline is avoided, relative stress concentration caused by inclination of the natural gas pipeline is avoided, and continuous protection of the natural gas pipeline is realized.

Description

technical field [0001] The invention relates to the technical field of natural gas pipelines, in particular to a plugging and connecting device for natural gas pipelines. Background technique [0002] Natural gas pipelines refer to pipelines that transport natural gas (including associated gas produced in oil fields) from mining sites or processing plants to urban gas distribution centers or industrial enterprise users, also known as gas pipelines. The use of natural gas pipelines to transport natural gas is a way to transport large quantities of natural gas on land. Natural gas pipelines account for about half of the world's total pipeline length. [0003] According to Chinese patent CN211599911U, both the first fixed rod and the second fixed rod are inserted into the ground first, and then the screw is rotated. The screw drives the moving block to move downward through the action of thread engagement, and the second fixed rod is driven by the moving block. The installati...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a natural gas pipeline plugging and connecting device, which solves the problem that during the use of the existing natural gas pipeline plugging and connecting device, the force effect of the structure is supplied by an external support mechanism, and the components directly Exposed to the outside, it occupies a large volume, and at the same time affects the placement angle of the natural gas pipeline itself, causing damage to other connecting parts

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