Surface shallow buried pipe connection structure

Abstract

The invention discloses a shallowly-buried-in-surface type pipe connection structure. The structure comprises a pipe connection piece and a buried pipe, wherein the buried pipe is a double-layer metal pipe and comprises an inner pipe and an outer pipe; the outer pipe sleeves the outer edge of the inner pipe; the inner pipe is a steel pipe; the outer pipe is a copper-chromium alloy pipe; the inner wall of the inner pipe is coated with an anti-corrosion resin coating; a progressive protrusion part is arranged at the outer edge of the end part of the outer pipe, gradually extends outwards from a position, and is progressively protruded to the end part all the time, and certain distance exists between the position and the end part; the pipe connection piece at least comprises a tight holding piece and an elastic compression ring; the tight holding piece is of an opening ring shape, and the section of the tight holding piece is of a U shape shown as a figure; the elastic compression ring is positioned at the inner edge of the tight holding piece; a first recess and a second recess are formed in the inner edge of the elastic compression ring. Therefore, the shallowly-buried-in-surface type pipe connection structure has the advantages of simple structure, convenience in mutual matching and convenience in operation; pipes can be quickly connected; moreover, the connection performance and the sealing performance of the pipes are better, so that the connection piece is prevented from being corroded and destroyed, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of pipe connection, in particular to a shallow buried pipe connection structure on the ground. Background technique [0002] With the continuous improvement of people's living standards, there are more and more various infrastructure constructions, which require pipelines to realize the transportation of water, oil, gas, etc., but as people gradually pay attention to the environment, they also hope that such infrastructure constructions can possible reduction of environmental impact. [0003] In the existing technology, in order to realize the pipeline fixing and construction, the following two methods are commonly used: one is the underground buried pressure pipeline, which means that the pipeline is buried in the ground, and the steel pipe is surrounded by a layer of reinforced concrete and surrounding rock. Although the pipeline is fixed underground, the construction is complicated, the adaptability is p...

AI Technical Summary

Problems solved by technology

[0005] However, although the pipe is buried, due to the shallow depth, the corrosion and sealing effect will inevitably be affected. How to improve the sealing effect and avoid corrosion has become a technical problem that must be solved in this buried pipe method.

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