Pressure backfill pipe connection structure

Abstract

A pressure backfill type pipe connection structure comprises a connection piece and a backfill pipe, wherein a double-layer metal pipe serves as the backfill pipe, the backfill pipe comprises an inner pipe and an outer pipe arranged on the edge of the inner pipe in a sleeving mode, the connection piece at least comprises a clamping piece and an elastic compression ring which is located in the clamping piece. The pressure backfill type pipe connection structure further comprises a clamping bolt, a left fixing rod and a right fixing rod, wherein the left fixing rod and the right fixing rod are transversely fixed to the two sides of an opening of the clamping piece respectively, a through hole for the clamping bolt to penetrate through is formed in the middle of a left fixing ring, and internal threads for screwing the clamping bolt are arranged in the middle of a right fixing ring. The fixing rings are arranged on the two sides of the elastic compression ring respectively. A U-shaped inwards-concave groove is formed in the middle of the inner edge of the elastic compression ring. In this way, the pressure backfill type pipe connection structure is simple in structure, pressure backfill type pipe connection structures can be conveniently matched, operation is convenient, pipes can be rapidly connected, connection is accurate and stable, disengagement is avoided, and the connection effect is good.

Description

technical field [0001] The invention relates to the technical field of pipeline connection, in particular to a pressure backfill pipe connection structure. 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 poor, th...

AI Technical Summary

Problems solved by technology

[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 poor, the cost is high, and the damage to the environment is great; the second is the open-air penstock, which means that the penstock is exposed on the surface and is fixed by the township and buttresses , although this method can reduce the damage to the environment, the open-air type is easy to damage and affects the vegetation and normal use of the ground, which also has major defects

Images