Socket-and-spigot joint and mounting method thereof

Abstract

The invention discloses a socket-and-spigot joint. The socket-and-spigot joint comprises a spigot, a socket and a sealing ring; the inner wall of the socket is provided with a first inner ring groove and a second inner ring groove, and the first inner ring groove is defined by a first groove blocking surface, a first groove top surface and a first groove conical surface; the second inner ring groove is defined by a second groove conical surface, a second groove top surface and a third groove conical surface; the first groove conical surface and the second groove conical surface are in smooth transition; the sealing ring is formed by combining a hard rubber ring and a soft rubber ring, the hard rubber ring is provided with a first flange matched with the first inner ring groove, and the soft rubber ring is provided with a second flange partially attached to the second inner ring groove; the large diameter of the boundary ring surface of the hard rubber ring and the soft rubber ring falls into the range of the second groove conical surface; and an inner hole of the sealing ring is tightly matched and compressed with the outer diameter of the socket. Meanwhile, the invention further discloses a mounting method of the socket-and-spigot joint. The two connecting ends of a socket-and-spigot pipe are sealed through the rubber parts with different hardness, and the pipe still has good sealing performance when bearing relative slippage and deflection.

Description

technical field [0001] The invention relates to the technical field of pipeline auxiliary installation, in particular to a socket-type interface and an installation method thereof. Background technique [0002] Socket pipe means that in order to connect pipes / pieces or bifurcated pipes, the two ends of the pipe are respectively made into sockets and sockets, and the socket of one pipe is inserted into the socket of another pipe, and then the seam is sealed. Socket connections are mainly used for cast iron pipes with socket joints, concrete pipes, ceramic pipes, plastic pipes, steel pipes, etc. There are two types of rigid socket connections and flexible socket connections. The rigid socket connection is to insert the socket of the pipe into the socket of the pipe. After the alignment, the caulking material is used to caulk, and then sealed with a sealing material to make it a firm closed whole. The flexible socket connection joint is to put an elastic rubber ring on the sea...

AI Technical Summary

Problems solved by technology

However, the sealing structure of socket-type pipe fittings in the prior ar

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