Pipe joint

Abstract

The invention relates to a pipe joint. The pipe joint comprises connecting pipes through which pipelines are inserted in an interference fit manner, and fitting pipes which integrally outwards extendfrom two ends of the connecting pipes, wherein the inside diameter of the fitting pipes is larger than the outside diameter of the pipelines; the fitting pipes and the connecting pipes are made of elastic materials; airbag layers which can be expanded after being inflated are arranged on the inner walls of the fitting pipes in an annular wrinkle form; air storing mechanisms which are made of elastic materials are arranged on the outer walls of the fitting pipes; an air conveying pipe is arranged between each air storing mechanism and the corresponding airbag layer; one-way air conveying mechanisms for conveying air into the airbag layers through the air storing mechanisms in one way are arranged on the air conveying pipe; exhausting pipes are arranged between the airbag layers and the outer walls of the connecting pipes; a fitting groove is formed in each connecting pipe; an air feeding pipe is arranged between the inner ring wall of each fitting groove and the corresponding air storing mechanism; the end, far away from the corresponding airbag layer, of each exhausting pipe communicates with the corresponding fitting groove; and sealing mechanisms for opening or closing the exhausting pipes and the air feeding pipes are arranged on the fitting grooves. The pipe joint is simply and quickly connected to the pipelines; and the sealing performance is high.

Description

technical field [0001] The invention relates to the field of pipe joints, more specifically, it relates to a pipe joint. Background technique [0002] Plastic pipes are generally flat in appearance, and the two pipes are generally connected through pipe joints. In order to maintain a good sealing effect, most existing pipes are connected by ferrule-type pipe joints, such as the card disclosed by the Chinese patent application number 201620372842.4 Sleeve type pipe joint, including coaxially arranged connecting body, nut, elastic snap ring and sealing ring, one end of the connecting body is threaded with the nut, the elastic snap ring and sealing ring are arranged between the connecting body and the nut, The snap ring is a tapered ring structure, the tip of the elastic snap ring faces the nut end, and a chamfer is provided on the side of the nut sleeve hole facing the elastic snap ring, and the chamfer matches with the tip of the elastic snap ring; The end of the body that m...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned ferrule-type pipe joint has the characteristics of good sealing effect, but the ferrule-type pipe joint is a split structure, and the parts are scattered. When installing, the parts need to be assembled and cooperated with each other, and it is time-consuming to connect with the pipeline.

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