CN201041264Y

CN201041264Y - Conduit line swivelling joint

Info

Publication number: CN201041264Y
Application number: CNU2007200223698U
Authority: CN
Inventors: 陈万忠; 吕坤; 韩凤山
Original assignee: Shinva Medical Instrument Co Ltd
Current assignee: Shinva Medical Instrument Co Ltd
Priority date: 2007-05-22
Filing date: 2007-05-22
Publication date: 2008-03-26
Anticipated expiration: 2017-05-22

Abstract

The utility model relates to a pipeline rotating connector which is used for the connection of a relative rotating pipeline, and is provided with connectors oppositely connected and a sealing ring. The oppositely connected connectors are an outer connector and an inner connector which are suited, a sealing end cover is arranged at the outer end of the outer connector, an inner inserting section inserted into the clearance of the inner and outer connectors is arranged on the sealing end cover, the sealing ring is respectively arranged between the inner inserting section and the inner and outer connectors; the sealing ring, a sealing bearing, and a sealing sleeve are arranged between the outer connector and an inner connector; a sealing liquid ring-shaped concave groove is arranged on the sealing sleeve, and a sealing bolt passes through the outer connector to be contacted with the ring-shaped concave groove. The structure is simple, the cost is low, the sealing property is good, the corrosion resistant performance is high, and the service life is long, thereby well meeting the no-leakage connection of the rotating pipeline.

Description

The pipeline swivel joint

Technical field

The utility model relates to a kind of pipeline swivel joint, is used to relatively rotate the connection of pipeline.

Background technique

At present, usually using pipeline to connect is that sleeve thread connects in adopting, only on screw thread, seal by the sealer zone circle, but at some hydraulic pressure, often need to use two joints in relative rotation in the pneumatic circuit, iff adopting sealant tape to seal, sealability is relatively poor, because often rotate the attachment portion, and be subjected to gas and liquefaction corrosion for a long time, connecting head usually occur and reveal.

The model utility content

The purpose of this utility model is to provide a kind of pipeline swivel joint, and good seal performance realizes that the nothing of rotation pipeline is leaked connection, corrosion resistance height, long service life.

Pipeline swivel joint described in the utility model, joint and seal ring that butt joint is arranged, the joint of its butt joint is the socket and the spigot of suit, the outer end of socket is provided with end cover, the interpolation section of inserting inside and outside play movement is arranged on the end cover, be respectively equipped with seal ring between interpolation section and the interior socket, be provided with seal ring, stuffing box bearing and stuffing box gland between socket and the spigot, stuffing box gland is provided with the sealing fluid annular groove, and sealing bolt passes socket contact ring connected in star.

The utility model adopts three grades of rotary seals, and at first with the seal ring sealing, seal ring can select for use carbon tube/epoxy resin composite material to make, corrosion resistance is greatly improved, and produce thin foam through pivoting friction, and can stop up running clearance under pressure, form selfsealings.The sealing fluid sealing is adopted in second level sealing, is marked with sealing fluid in annular groove, and the tapped hole feeding compressed fluid by sealing bolt in the sealing bolt process of press in, produces pressure, makes the liquid seal effect better.The interpolation section of end cover and the seal ring between the interior socket can constitute third level sealing by the carbon tube/epoxy resin composite material seal ring, and principle seals with the first order, significantly improves sealability, realize that finally the nothing of swivel joint is leaked connection.

Inside at swivel joint, the stuffing box bearing design has two, place the stuffing box gland both sides respectively, two bearings are arranged, make swivel coupling rotation precision height, stability of rotation, thus the revolution gap is even, improves the joint sealing life-span, stuffing box gland forms the spacer of two bearings, stuffing box gland, the Internal and external cycle of bearing and inner spheroid thereof, with the gap distribution of two joints, make the gap refinement in the cavity, the gap transition is evenly continuous, can effectively prevent the excessive cutoff pressure that produces, buffer fluid pressure has improved sealing effect, makes the inside cavity sealing of fluid-tight more reliable.Particularly during high speed rotating, sealing effect is better.

The utility model pipeline swivel joint, simple in structure, cost is low, good seal performance, the corrosion resistance height, long service life, the nothing that has satisfied the rotation pipeline is well leaked connection.

Description of drawings

Fig. 1, the utility model one example structure schematic representation.

Among the figure: 1,

socket

2,5,7,

seal ring

3,10, stuffing box bearing 4, sealing bolt 6, end cover 8, spigot 9, stuffing box gland 11, annular groove.

Embodiment

The utility model is described in further detail in conjunction with the foregoing description accompanying drawing.

As shown in the figure, pipeline swivel joint described in the utility model, the joint of butt joint is the socket 1 and the spigot 8 of suit, the outer end of socket 1 is provided with end cover 6, the interpolation section of inserting inside and outside play movement is arranged on the end cover 6, be respectively equipped with seal ring 7,5 between interpolation section and the interior socket 8,1, be provided with seal ring 2, stuffing box bearing 3,10 and stuffing box gland 9 between socket 1 and the spigot 8, stuffing box bearing 3,10 places stuffing box gland 9 both sides respectively, stuffing box gland 9 is provided with sealing fluid annular groove 11, and sealing bolt 4 passes socket 1 contact ring connected in star 11.

Seal ring 2 is the sealing of first road; The sealing fluid sealing is adopted in second level sealing, is marked with sealing fluid in annular groove 11, and the tapped hole feeding compressed fluid by sealing bolt 4 in sealing bolt 4 process of press in, produces pressure, strengthens the liquid seal effect; Seal ring 7,5 between the interpolation section of end cover 6 and the interior socket 8,1 constitutes third level sealing.Three grades of sealings, good seal performance has realized that the nothing of swivel joint is leaked connection.

Claims

1. pipeline swivel joint, joint and seal ring that butt joint is arranged, it is characterized in that the joint that docks is the socket and the spigot of suit, the outer end of socket is provided with end cover, the interpolation section of inserting inside and outside play movement is arranged on the end cover, be respectively equipped with seal ring between interpolation section and the interior socket, be provided with seal ring, stuffing box bearing and stuffing box gland between socket and the spigot, stuffing box gland is provided with the sealing fluid annular groove, and sealing bolt passes socket contact ring connected in star.

2. pipeline swivel joint according to claim 1 is characterized in that stuffing box bearing has two, places the stuffing box gland both sides respectively.