Quick-changing expansion pipeline connecting structure

Abstract

The invention discloses a quick-change expansion pipeline connection structure, which includes a pipeline section and first flanges arranged at both ends of the pipeline section. The first flange is provided with a first blind hole, and in the first blind hole is a A cylindrical spring that can be inserted into the second blind hole on the end face of the second flange. The second flange is arranged on another pipe section connected to the pipe. An elastic gasket is arranged between the end faces of the two flanges. The cylindrical spring Through the elastic gasket and the cylindrical spring is compressed. There are small blind holes on the outer surface of the pipe wall at the insertion end of each pipe section. The small blind holes are in a circular array centered on the center of the pipe section. The top of the small cylindrical spring in the small blind hole is fixedly connected with the pillar; After the flange is inserted in place, the small cylindrical spring lifts the pillar into the groove in the corresponding flange. A threaded hole communicating with the outside world is also provided at the bottom of each small blind hole. This structure can make the pipeline have a certain degree of expansion, and the assembly and disassembly are convenient.

Description

technical field [0001] The invention belongs to the technical field of pipelines, in particular to an expansion pipe joint. Background technique [0002] Pipes are widely used in daily production and life. When laying, the pipes are often buried underground and covered with soil or even concrete. During the use of the pipes, especially in summer, there will be a certain degree of expansion. Among them, for the exposed Due to the lack of containment of the cover, the existing pipeline has a larger expansion amount, and the existing pipeline does not have good expansion performance, resulting in cracks or even bursting of the pipeline during expansion. In addition, the current pipes are inconvenient to connect, and once connected, it is difficult to completely disassemble and separate them. Contents of the invention [0003] The purpose of the present invention is to solve the above technical problems and provide a quick-change expansion pipeline connection structure, which...

AI Technical Summary

Problems solved by technology

[0002] Pipes are widely used in daily production and life. When laying, the pipes are often buried underground and covered with soil or even concrete. During the use of the pipes, especially in summer, there will be a certain degree of expansion. Among them, for the exposed Due to the lack of containment of the covering,

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