FRD double-sealed immediate detection closed water socket-and-spigot joint

Abstract

The invention belongs to the technical field of closed water connection, and particularly relates to an FRD double-sealed immediate detection closed water socket-and-spigot joint. The problems that inthe prior art, a spigot and a socket possibly make contact with each other and are sealed, the positions which make contact with each other and are sealed are prone to causing connectivity of the interior of a annular space to be interrupted, accordingly, sealing performance detection of a double-sealed socket-and-spigot joint is uncompleted are solved. According to the technical scheme, the FRDdouble-sealed immediate detection closed water socket-and-spigot joint comprises a spigot and a socket, the spigot is a joint part of an inserting-in end, and the socket is a joint part of a socket end; the outer wall of the spigot is provided with an annular pressure test groove, the two sides of the pressure test groove are provided with annular sealing ring installation grooves correspondingly,and sealing rings are installed in the sealing ring installation grooves; and the socket is provided with pressure test holes which correspond to the pressure test grooves. In addition, baffles are arranged in the pressure test grooves. The FRD double-sealed immediate detection closed water socket-and-spigot joint is suitable for connection of drainage pipelines.

Description

technical field [0001] The invention belongs to the technical field of closed-water connection, and in particular relates to a FRD double-seal real-time detection closed-water socket joint. Background technique [0002] The drainage pipe is connected and installed by the drainage pipes processed separately in multiple sections, and the connection structure between the water pipes is required to maintain a good sealing performance for a long time. In the prior art, the connection between water pipes often adopts socket joints. The connection method of socket joints is to insert the socket at one end of the pipe or fitting into the socket of the fitting to be connected, and fill the ring gap with sealing material. Its advantage is that it is easy to install. [0003] There are many forms of sealing for socket joints, among which double sealing is a very effective sealing form. Moreover, by setting a pressure test hole at the position between the two sealing rings on the sock...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the socket and the socket may be in contact and airtight, and the contact and airtight parts may lead to the interruption of the internal connectivity of the annulus, which may cause the double-sealed socket joint to fail to detect the airtightness. Complete problem, the present invention provides a FRD double-seal real-time closed-water socket joint, the purpose of which is to improve the structure of the double-seal socket joint, so that the ring gap can be sealed in the entire circumference through a pressure test hole sex test

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