Slippage-preventing flexible pipe joint

Abstract

The invention discloses a slippage-preventing flexible pipe joint, which comprises a socket and a spigot which are matched in manner of insertion on a pipe fitting; a seal ring is arranged between the socket and the spigot; a circular ring-shaped seizing groove coaxial with the center hole of the socket is formed in the end face of the socket; correspondingly, a cutting sleeve which is coaxial with the spigot and can be inserted into the seizing groove also sheathes the outer wall of the spigot; limiting grooves are circumferentially formed in the outer wall of the cutting sleeve in manner of surrounding the spigot; a plurality of through holes communicating with the seizing groove are formed along a radial direction in the outer wall of the socket; each through hole is matched with a limiting pin; after the socket and the spigot are matched in manner of insertion, the cutting sleeve correspondingly extends into the seizing groove, and position of each limiting groove is matched with that of the corresponding through hole. According to the slippage-preventing flexible pipe joint, after the socket and the spigot are matched in manner of insertion, the cutting sleeve also correspondingly extends into the seizing groove, and each limiting pin is seized into the corresponding limiting groove from the through hole, and therefore, the goal of preventing the socket and the spigot from axially slipping is achieved.

Description

technical field [0001] The invention relates to the field of pipe joints, in particular to an anti-slip flexible pipe joint. Background technique [0002] When the socket-type pipe fittings are connected into pipelines, the socket of the pipe fittings to be connected is inserted into the socket of the pipe fittings to be connected, and the seal between the pipe fittings to be connected and the axial slippage prevention are realized through the sealing ring arranged between the socket and the socket According to the feedback from the construction site, since the sealing ring is a flexible part, the binding force it can provide is limited, so the anti-slip effect of the sealing ring is not very ideal, and the pipe fittings often come off, which increases the difficulty of construction and delays Construction period. Contents of the invention [0003] In order to solve the above problems, the present invention aims to provide an anti-slip flexible pipe joint that greatly imp...

AI Technical Summary

Problems solved by technology

[0002] When the socket-type pipe fittings are connected into pipelines, the socket of the pipe fittings to be connected is inserted into the socket of the pipe fittings to be connected, and the seal between the pipe fittings to be connected and the axial slippage prevention are realized through the sealing ring arranged between the socket and the socket According to the feedback from the construction site, since the sealing ring is a flexible part, the binding force it can provide is limited, so the anti-slip effect of the sealing ring is not very ideal, and the pipe fittings often come off, which increases the difficulty of construction and delays Construction period

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