A natural gas pipeline plugging and connecting device

Abstract

The invention discloses a natural gas pipeline plugging and connecting device, comprising a matching pipe, a traction plate is arranged in the middle of the top of the matching pipe, and a knob plate is movably connected to one end of the traction plate located at the top of the matching pipe, and the knob plate is inside A sealing plug is movably connected to the surface, a traction rope is movably connected to the traction plate at the bottom of the matching pipe, a locking mechanism is movably connected to one end of the traction rope away from the traction plate, and a fixed lock plate is movably connected to the inner surface of the locking mechanism The outer surface of the fixed lock plate is provided with a threaded limit groove, and the bottom of the outer surface of the matching pipe is movably connected with a guide wheel at the position of the traction rope. The invention relates to the technical field of natural gas pipelines. The overall cylindrical design is used to reduce the occupied volume of the equipment components, and at the same time, it fits the natural gas pipeline, avoids unnecessary height adjustment of the natural gas pipeline, and avoids the relative stress concentration caused by the natural gas pipeline itself inclined, so as to achieve the continuity of the natural gas pipeline. Protect.

Description

technical field [0001] The invention relates to the technical field of natural gas pipelines, in particular to a natural gas pipeline plugging and connecting device. Background technique [0002] Natural gas pipelines refer to the 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 the way to transport a large amount of natural gas on land. Natural gas pipelines account for about half of the total pipeline length in the world. [0003] According to Chinese patent CN211599911U, firstly insert the first fixed rod and the second fixed rod into the ground, and then rotate the screw, the screw drives the moving block to move down through the action of thread engagement, and drives the second fixed rod through the moving block, so as to The mounting blo...

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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