Metal pipe connection structure with multiple step

Abstract

A multi-step metal pipe connecting structure, it is characterized by: it consists of connecting pipe component main body with fluid channel, two or more adapters equipped with fluid channel and installed on the connecting pipe component main body and metal pipe sealed and connected in the adapter and its end is equipped with outer convex ring, the adapter end surface is equipped with ring groove which is equipped with two or more steps, the groove is equipped with sealing ring which is equipped with two or more steps corresponding with the steps in the ring groove, the adapter is equipped with nut cap which is equipped with metal pipe via hole, the nut cap thread is connected on the adapter, compression ring is installed between the nut cap and the sealing ring, the sealing ring end head inner wall is equipped with the ring which is closed to the end surface of groove, the lateral face of compression ring of the ring of corresponding sealing ring is equipped with fixing ring. Compared with prior technology, the invention has the advantages of the sealing ring can be closed to the convex ring of metal pipe tightly to seal the convex ring of the metal ring on the adapter of the connecting body even the water pressure is large.

Description

Technical field: [0001] The invention relates to a connecting piece of a metal pipe. Background technique: [0002] Existing metal pipe connectors are generally composed of a connecting body with a connector, a sealing ring arranged in the connector, and a fixing nut arranged on the connector. When connecting with a metal pipe, the end is provided with a protruding ring The metal tube is inserted into the connector, and then the metal tube is sealed and fixed on the connector through nuts and sealing rings. This kind of metal tube connector requires sufficient deformation of the sealing ring to play a sealing role. Therefore, The sealing ring is relatively wide, but the wider sealing ring deforms greatly when the water pressure is high, so that it cannot fit well on the protruding ring of the metal pipe to seal the protruding ring on the metal pipe on the connection on the connector of the body. Invention content: [0003] The purpose of the present invention is to provi...

AI Technical Summary

Problems solved by technology

[0002] Existing metal pipe connectors are generally composed of a connecting body with a connector, a sealing ring arranged in the connector, and a fixing nut arranged on the connector. When connecting with a metal pipe, the end is provided with a protruding ring The metal tube is inserted into the connector, and then the metal tube is sealed and fixed on the connector through nuts and sealing rings. This kind of metal tube connector requires sufficient deformation of the sealing ring to play a sealing role. Therefore, The sealing ring is relatively wide, but the wider sealing ring deforms greatly when the water pressure is high, so that it cannot fit well on the protruding ring of the metal pipe to seal the protruding ring on the metal pipe on the connection body connector

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