CN106795987B

CN106795987B - Tube connector

Info

Publication number: CN106795987B
Application number: CN201580046991.XA
Authority: CN
Inventors: 大卫·巴克尔
Original assignee: Applied Power Inc
Current assignee: Enerpac Tool Group Corp
Priority date: 2014-09-02
Filing date: 2015-09-02
Publication date: 2019-06-28
Anticipated expiration: 2035-09-02
Also published as: GB2542103A; CN106795987A; WO2016036841A1; BR112017002692A2; GB201700896D0; NO20170054A1

Abstract

A kind of tube connector for the pipe in connecting pipe.The connector may include: the outer body for being formed with cavity；The holding ring of support in the cavity, the holding ring forms gap, to allow the holding ring to reduce the diameter to engage with one of them pipe；And end nut, the end nut forms the nut bore for accommodating the holding ring, nut engagement surface extends in the nut bore and can be with the clamping engagement of loops, the end nut is configured to be moved axially inward relative to the outer body, to compress and make one of them pipe described in at least described first clamping engagement of loops.

Description

Tube connector

Technical field

The present invention relates to pipe jointers, more particularly, to top side Mechanical pipe couplings.

Summary of the invention

Top side Mechanical pipe couplings convey various fluids (for example, water, waste, draining etc.) commonly used in connection or are used for It is vented the pipeline of purpose.In the presence of the various small pipeline connectors for using a variety of tube grip methods, such as using swaged forging, it is engaged, pressure System, flaring, machine fluting and slit-type method.However, these clamp methods may relate to deform pipe or processed, so that Pipe will for good and all change shape.

At an independent aspect, a kind of tube connector is provided, for the pipe in connecting pipe.The connector can one As include outer body, the outer body is formed with cavity；First holding ring, first holding ring support in the cavity, First holding ring forms the first angular cut to allow first holding ring to reduce the diameter to engage with one of them pipe；The Two holding rings, second holding ring is adjacent to first holding ring；And end nut, the end nut form collecting post State the nut bore of the first holding ring and the second holding ring, nut engagement surface extends in the nut bore and can be with described the One clamping engagement of loops, the end nut are configured to be moved radially inwardly relative to the outer body to compress and at least make First holding ring is engaged with one of them described pipe.

At another independent aspect, a kind of tube connector is provided, for the pipe in connecting pipe.The connector can Outer body is generally comprised, the outer body, which is formed with cavity and is equipped with, extends into the intracorporal radial surface of the chamber；Holding ring, Holding ring support in the cavity, the holding ring be formed with angular cut with allow the holding ring to reduce the diameter with One of them pipe engagement；End nut, the end nut form the nut bore for accommodating the holding ring, and nut engagement surface prolongs It extends in the nut bore and can be configured to the clamping engagement of loops, the end nut relative to the outer body It moves radially inwardly to compress the holding ring；Sealing element, the sealing element are located in the cavity and are located at the radial table Between face and the end nut, the sealing element can be engaged in the component and described one of them pipe of the connector Between；And sealing pressurized strut, in the cavity, the sealing pressurized strut extends at least partly into for the sealing pressurized strut support In the nut bore, being moved axially inward for the end nut causes the sealing pressurized strut to be moved axially inward to compress State sealing element.

At another independent aspect, a kind of method that tube connector is assembled to at least pipe in pipeline is provided. The connector may include the outer body for being equipped with cavity, support in the cavity and be equipped with the first holding ring of angular cut, neighbour Closely the second holding ring of first holding ring and the end nut equipped with nut bore, the nut bore receiving described first Holding ring and the second holding ring, nut engagement surface are extended into the nut bore and can be connect with first holding ring It closes.The method, which can be generally comprised, is inserted into the connector for the first pipe；And it is moved axially inward relative to the outer body The end nut is to compress and make at least described first holding ring to engage with first pipe.

At another independent aspect, a kind of method that tube connector is assembled to at least pipe in pipeline is provided. The connector may include extended into equipped with cavity and being equipped with the outer body of the intracorporal radial surface of the chamber, be supported on it is described In cavity and it is equipped with the holding ring of angular cut, the end nut equipped with nut bore, is located at the intracorporal sealing element of the chamber, Yi Jizhi The sealing pressurized strut of support in the cavity, the nut bore accommodate the holding ring, and nut engagement surface extends into described In nut bore and can with the clamping engagement of loops, the sealing element between the radial surface and the end nut, The sealing pressurized strut extends at least partially into the nut bore.The method can generally comprise will be described in the insertion of the first pipe Connector；The end nut is moved axially inward relative to the outer body to compress and make the holding ring and described first Pipe engagement；And keep the sealing pressurized strut axial relative to the outer body by being moved axially inward for the end nut It moves inward to compress the sealing element between the connector and first pipe.

At another independent aspect, a kind of tube connector is provided, for the pipe in connecting pipe.The connector can Generally comprise: outer body, the outer body are formed with cavity；Holding ring, the holding ring support in the cavity, the folder Support ring is formed with gap to allow the holding ring to reduce the diameter to engage with one of them pipe；And end nut, the end Portion's nut forms the nut bore for accommodating the holding ring, and nut engagement surface extends in the nut bore and can be with the folder Support ring engagement, the end nut are configured to be moved radially inwardly relative to the outer body to compress and make the clamping Ring is engaged with one of them described pipe.

At another independent aspect, a kind of tube connector is provided, for the pipe in connecting pipe.The connector can Generally comprise: outer body, the outer body, which is formed with cavity and is equipped with, extends into the intracorporal radial surface of the chamber；Clamping Ring, holding ring support in the cavity, the holding ring be formed with gap with allow the holding ring to reduce the diameter with It is engaged with one of them pipe；End nut, the end nut form the nut bore for accommodating the holding ring, nut engagement surface It extends in the nut bore and can be configured to the clamping engagement of loops, the end nut relative to described outer Body is moved radially inwardly to compress the holding ring；Sealing element, the sealing element are located in the cavity and are located at the radial direction Between surface and the end nut, the sealing element can be engaged in the component and one of them described pipe of the connector Between；And sealing pressurized strut, in the cavity, the sealing pressurized strut at least partly extends for the sealing pressurized strut support Into in the nut bore, being moved axially inward for the end nut causes the sealing pressurized strut to be moved axially inward to compress The sealing element.

At another independent aspect, a kind of method that tube connector is assembled to at least pipe in pipeline is provided. The connector may include the outer body for being equipped with cavity, support in the cavity and be equipped with the holding ring in gap and be equipped with The end nut of nut bore, the nut bore accommodate the holding ring, and nut engagement surface extends into the nut bore simultaneously It can be with the clamping engagement of loops.The method can generally comprise: the first pipe is inserted into the connector；And relative to described Outer body is moved axially inward the end nut to compress and make the holding ring to engage with first pipe.

At another independent aspect, the connector can generally comprise equipped with cavity and be equipped with extend into the cavity The outer body of interior radial surface, support in the cavity and be equipped with the holding ring in gap, the end nut equipped with nut bore, Positioned at the sealing pressurized strut of the intracorporal sealing element of the chamber and support in the cavity, the nut bore accommodates the folder Support ring, nut engagement surface extend into the nut bore and can be located at institute with the clamping engagement of loops, the sealing element It states between radial surface and the end nut, the sealing pressurized strut extends at least partially into the nut bore.It is described Method can generally comprise: the first pipe is inserted into the connector；The end spiral shell is moved axially inward relative to the outer body Mother is to compress and make the holding ring to engage with first pipe；And institute is made by being moved axially inward for the end nut Sealing pressurized strut is stated to be moved axially inward relative to the outer body to compress institute between the connector and first pipe State sealing element.

At another independent aspect, a kind of tube connector is provided, for the pipe in connecting pipe.The connector can It include: outer body, the outer body is formed with cavity；Holding ring, the holding ring support in the cavity, the holding ring Gap is formed with to allow the holding ring to reduce the diameter to engage with one of them pipe；End nut, the end nut shape At the nut bore for accommodating the holding ring, nut engagement surface is extended in the nut bore and can be connect with the holding ring It closes, the end nut is configured to be moved radially inwardly relative to the outer body to compress and make the holding ring and institute State the engagement of one of them pipe；And pin, the pin are movably located in the gap to be moved through in the end nut The compression of the holding ring is limited in journey.

At another independent aspect, a kind of method that tube connector is assembled to at least pipe in pipeline is provided. The connector may include extended into equipped with cavity and being equipped with the outer body of the intracorporal radial surface of the chamber, be supported on it is described Cavity is interior and is equipped with holding ring, the end nut equipped with nut bore, the pin being movably located in the gap, position in gap In the sealing pressurized strut of the intracorporal sealing element of the chamber and support in the cavity, the nut bore accommodates the clamping Ring, nut engagement surface extend into the nut bore and can be located at described with the clamping engagement of loops, the sealing element Between radial surface and the end nut, the sealing pressurized strut is extended at least partially into the nut bore.The side Method can generally comprise: the first pipe is inserted into the connector；The end nut is moved axially inward relative to the outer body So that the holding ring and the pin joint close to limit the compression of the holding ring towards first pipe；Pass through the end Being moved axially inward for nut is moved axially inward the sealing pressurized strut in the connector relative to the outer body The sealing element is compressed between first pipe；Later, the pin is removed from the gap；And later, relative to institute It states outer body and is moved axially inward the end nut to compress and make the holding ring to engage with first pipe.

By reading detailed description, drawings and claims, to those skilled in the art, of the invention is independent special Independent advantages of seeking peace will be apparent.

Detailed description of the invention

Fig. 1 is the cross-sectional view of tube connector according to an embodiment of the invention.

Fig. 2 is the decomposition diagram of the tube connector of Fig. 1, instantiates the component of tube connector two sides.

Fig. 3 is the decomposition diagram of the tube connector of Fig. 1, instantiates the component of tube connector unilateral side.

Fig. 4 is the cross-sectional view of the tube connector of Fig. 1.

Fig. 5 is the cross-sectional view of tube connector a part of Fig. 1, is instantiated between end nut and outer body most Wide arc gap.

Fig. 6 is the cross-sectional view of tube connector a part of Fig. 1, instantiates and reduces between end nut and outer body Gap.

Fig. 7 is the cross-sectional view of tube connector a part of Fig. 1, is instantiated between end nut and outer body into one Reduced gap is walked, expectation is corresponded to and starts gap size.

Fig. 8 is mounted to the cross-sectional view of tube connector a part of Fig. 1 in pipeline, instantiates pressure test end Mouthful.

Fig. 9 is multiple three-dimensional signals of each component of the hand-held outside activation system for starting the tube connector of Fig. 1 Figure.

Figure 10 is the combination of activation system outside the tube connector of Fig. 1 and the hand-held of Fig. 9 in the multiple of each erection stage Stereoscopic schematic diagram.

Figure 11 is the combination of activation system outside the tube connector of Fig. 1 and the hand-held of Fig. 9 in the multiple of each erection stage Stereoscopic schematic diagram.

Figure 12 is mounted to the cross-sectional view of tube connector a part of Fig. 1 in pipeline, instantiates pressure test Port.

Figure 13 is the cross-sectional view of the tube connector of an alternate embodiment according to the present invention.

Figure 14 is the cross-sectional view of the tube connector of Figure 13, instantiates tube connector and engages with two pipes connecting.

Figure 15 is the cross-sectional view of tube connector a part of Figure 13, is instantiated between gripper sleeve and seal sleeve Maximal clearance.

Figure 16 is the cross-sectional view of tube connector a part of Figure 13, is instantiated between gripper sleeve and seal sleeve Reduced gap.

Figure 17 is the cross-sectional view of tube connector a part of Figure 13, is instantiated between gripper sleeve and seal sleeve The gap further decreased corresponds to expectation and starts gap size.

Figure 18 is the cross-sectional view of tube connector a part of Figure 13, instantiates pressure test port.

Figure 19 A-19C instantiates each schematic diagram of holding ring.

Figure 20 be include Figure 19 A-19C holding ring tube connector decomposition diagram.

Figure 21 is the cross-sectional view of the tube connector of Figure 20.

Figure 22 is the cross-sectional view of the tube connector of Figure 20.

Figure 23 is the cross-sectional view of tube connector a part of Figure 20, is instantiated between end nut and outer body Maximal clearance.

Figure 24 is the cross-sectional view of tube connector a part of Figure 20, instantiates and subtracts between end nut and outer body Small gap.

Figure 25 is the cross-sectional view of tube connector a part of Figure 20, instantiate between end nut and outer body into The gap that one step reduces corresponds to expectation and starts gap size.

Figure 26 is mounted to the cross-sectional view of tube connector a part of Figure 20 in pipeline, instantiates pressure test Port.

Figure 27 is the three-dimensional cross-sectional view of the tube connector of another alternate embodiment according to the present invention.

Figure 28 A-28B is the partial schematic diagram that the tube connector of Figure 27 carries out that installation prepares.

Figure 29 A-29B is partial schematic diagram of the tube connector of Figure 27 after starting to rotate end nut.

Figure 30 is the three-dimensional cross-sectional view of part-structure of the tube connector of Figure 27 after continuing rotation end nut.

Figure 31 is the three-dimensional cross-sectional view of the part-structure of the tube connector of Figure 27, wherein pin is removed.

Figure 32 A-32B is the schematic diagram of part-structure of the tube connector of Figure 27 after continuing rotation end nut.

Figure 33 is the stereoscopic schematic diagram of the holding ring of the tube connector of Figure 27.

Figure 34 A-34E is the schematic diagram of tube connector a part of Figure 27.

Figure 35 is the stereoscopic schematic diagram of an alternative constructions of end nut, holding ring and positioning pin.

Specific embodiment

Before describing the embodiments in more detail, it should be understood that the present invention is not limited to institutes hereafter or in attached drawing in the application The detailed construction or arrangement of elements of description.The embodiment that the present invention can realize for other way.Furthermore, it is to be understood that this paper institute The wording and term used is solely for description purposes, should not be interpreted in a limited way."include", "comprise" used herein, And similar wording is meant comprising items listed thereafter, its equivalent and other additional things.Used herein " by ... Constitute " and mean only include items listed thereafter and its equivalent similar to wording.

Fig. 1-4 shows clamping lock (grip-lock) pipe jointer 10 of embodiment according to the present invention.About Fig. 1 For, shown in any feature symmetrical basically about center vertical pivot, and being quoted on a side-connector 10 of connector 10 Or element also belongs to mirror image features or element on the other side of connector 10.As an example, connector 10 can be used for 1 Inch is used to the ground on the pipeline P (Fig. 8) in 4 inch ranges and the rated pressure with about 150 grades (i.e. 31 bars). In some embodiments, connector 10 can have the rated pressure of about 300 grades (i.e. 78 bars).

Connector 10 includes outer body 14 and a pair of end portions nut 18, relative to ontology 14 along axial (that is, along connection The longitudinal axis of device 10) inwardly or outwardly move, for compressing the intracorporal various parts of chamber for being maintained at and being limited by connector 10. Connector 10 is configured to clamping and the first pipe 22 and the second pipe 26 (Fig. 8) of fluid connection conduit P.End nut 18 is under The various other components of the connector 10 of description are respectively formed cylinder open or the hole for being used to accommodate the end of pipe 22,26 by face 28。

Ontology 14 has the center support (center abutment) 30 being projected into cavity near centre.Sealing shroud Cylinder or pressurized strut (seal ram) 34 are located on every side of support 30, and gap 38 be formed in the reserved portion of support 30 with It seals between pressurized strut 34.Sealing pressurized strut 34 can move inward (that is, towards support 30) relative to ontology 14, to reduce gap 38 size.Ontology 14 forms multiple outer body drive holes 40.

Although be referred to as " center support ", support 30 is not necessarily equipped with to abut with one of in pipe 22,26 Reaction surface.Center support 30 usually guidance and concentrate tube 22,26 and the loose tolerance that pipe insertion is adapted to width. For example, the end that Fig. 8 shows pipe 22,26 does not need to abut the reaction surface of support 30 or be engaged with each other, but can be with Relationship spaced apart is arranged in the region defined by center support 30.

Support 30 and sealing pressurized strut 34 respectively include engagement surface 42,46, to move axially inwards in sealing pressurized strut 34 Multiple sealing elements (such as two sealing elements 50) are compressed when dynamic between them.Multiple sealing elements 50 are by sealed spacer part 54 and tiltedly The line style anti-extrusion ring 58 (AER) connect is axially spaced.(for example, between sealing between the sealing element 50 of every side of support 30 In spacing body 54) axially define gap 62.

When sealing pressurized strut 34 is moved axially inward (that is, towards support 30), the material of sealing element 50 compresses and by diameter To inwardly forcing with the appearance face bonding of associated pipe 22,26 to form pressure-resistant seal.When being axially compressed, sealing element 50 Radially inwardly and outwardly squeeze, in the outer surface of associated pipe 22,26 and the component of connector 10 (for example, shown construction In ontology 14 inner surface) between sealing is provided.

Shown in sealing element 50 be in the commercially available of the engineering machinery underwater connector manufactured by Hydratight Co., Ltd Type used in product line.Sealing element 50 can be the removing graphite (exfoliated graphite) of such as 98% purity. Sealing element 50 may include laminated graphite piece, and/or is surround by belt or be spirally wound on mandrel, be formed by winding arrangement It is then processed into the suitable constructions (for example, size, shape etc.) for connector 10.In other structures, sealing element 50 can To include any one of a variety of other sealed filling materials.

In the structure shown in, sealing element 50 is prevented to be squeezed into the phase of pipe 22,26 and connector 10 by anti-extrusion ring 58 (that is, relative to pipe 22,26 move radially inwardly) in gap between adjacent component, can be closed on pipe 22,26.Specifically, The component (for example, support 30, sealed spacer part 54 and sealing pressurized strut 34) of adjacent loops 58 includes inclined engagement surface 66, As leading the way with radially-inwardly guided rings 58.

When sealing element 50, more specifically, when the top of sealing element 50 is compressed, the bottom expansion of sealing element 50.This is forced Ring 58 is further engaged with inclined surface 66, with radially inwardly guided rings 58.Ring 58 includes helical cuts or angular cut 70, is made (that is, reducing the diameter) or expansion (that is, diameter increase) can be shunk without being plastically deformed by obtaining them.

Shown in sealing pressurized strut 34 be at least partly housed in end nut 18 formation opening in.Gap 74 is formed in Between the reserved portion and end nut 18 of ontology 14.Gap 74 allow end nut 18 move inward relative to ontology 14 (that is, Towards sealing pressurized strut 34 and support 30), to reduce the size in gap 74.For the ease of the inside movement, end nut 18 is wrapped Include multiple drive holes 78 and the threaded portion with the complementary threads region cooperation of ontology 14.Shown in end nut 18 can pass through It rotates in a controlled manner or rotates end nut 18 and be moved axially inward.

End nut 18 and sealing pressurized strut 34 respectively include inclined engagement surface 82,86.When end nut 18 is axial When moving inward, engagement surface 82,86 compresses multiple holding rings (for example, two holding rings in shown construction therebetween 90), wherein at least some holding rings 90 are at least partially situated in the opening formed by associated end nut 18.Table of joint Face 82,86 can be coated with dry lubricant, to help to reduce contact friction when contacting with holding ring 90.

Holding ring 90 shown in each has the cross section of general triangular, which has inner radial surface 94, inclines Skewed surface 98 and transverse to the surface 102 that longitudinal axis extends, the surface 102 towards and engage the inner surface of adjacent holding ring 90 102.It is bigger to realize that the inner radial surface 94 of holding ring 90 can form special-shaped (that is, being formed with slit, groove, convex block etc.) Holding capability.Holding ring 90 further includes helical cuts or angular cut 106, allows them to shrink (that is, reducing the diameter) or swollen Swollen (that is, increasing diameter).In some embodiments, holding ring 90 can be expanded and be shunk without being plastically deformed.Interior table Face 102 can also be coated with dry lubricant, to facilitate to reduce contact friction in 90 contraction or expansion of holding ring.

In order to radially inwardly guide holding ring 90, inclined engagement surface 82,86 is with the side similar to engagement surface 66 Formula, which is used as, leads the way.When end nut 18 is axially inwards (that is, towards support 30) mobile, engagement surface 82,86 engages holding ring 90 inclined surface 98 is to compress ring 90.Ring 90 radially-inwardly stress to engage and the outer surface of conformal associated pipe 22,26, To keep connector 10 to engage with pipe 22,26.

About Fig. 8, connector 10 further includes at least one thread pressure test port 110.In order to confirm connector 10 Correct installation, the gap 62 between each sealing element 50 of each end of connector 10 can pass through pressure test port 110 enter and are pressurized to desired hydraulic pressure.Sealed spacer part 54 may include hole (see, for example, Figure 18), to allow Fluid leads to the volume between sealed spacer part 54 and pipe 22,26 from gap 62, more completely to fill between sealing element 50 Gap.Which ensure that sealing element 50 is pressurized when sealing element 50 and pipe 22,26 contact.Hydraulic holding reasonable time length, To confirm the whole sealing integrity of connector 10 and holding capability.

In Fig. 1, connector 10 is shown at the state with pipeline P assembling.In order to assemble, the end of pipe 22,26 is sliding (Figure 10) is moved in the hole 28 of connector 10.When pipe 22,26 is inserted into hole 28, the maximum that gap 38,74 is in them is separated Distance (Fig. 5), the component (for example, holding ring 90, anti-extrusion ring 58 etc.) of connector 10 all not by radially-inwardly guide (that is, In access aperture 28) and hole 28 fully open to accommodate pipe 22,26, without damaging pipe 22,26 or connector 10.Then, even It connects device 10 to be started by activation system outside hand-held, to be clamped on pipe by inner clamps support ring 90.

Fig. 9 shows the exemplary external system 126 for starting connector 10.External activation system 126 includes torque Spanner 130, reaction sleeve 134 and separate type drive insertion piece 138.Torque wrench 130 has for being connected to reaction set The surfaces for attachment 142 of the flange 146 of cylinder 134.Separate type driving insertion piece 138 includes the drive for engaging each end nut 18 Multiple protrudent pins 150 in dynamic hole 78.

Figure 19 A-19C shows the alternative structure of holding ring 190.Holding ring 190 is similar to holding ring shown in Fig. 1-8 90.The reference label that common component uses is the same reference numerals used referring to holding ring 90 plus 100.It is retouched in addition to following Except the difference stated, the description of above-mentioned component applies in general to holding ring 190.

As shown in Figure 19 A-19C, each holding ring 190 is usually single-piece, and is had by 194 He of inner radial surface The general triangular cross section that a pair of angled surface 198 limits.The cross section of holding ring 190 is similar to two as shown in figures 1-8 The combined cross section of the holding ring 90 of a adjoining.In the structure shown in, inclined surface 198 has approximately equal length.Folder The inner radial surface 194 of support ring 190 can form special-shaped (that is, being formed with slit, groove, convex block etc.) to realize bigger clamping Ability.Because the holding ring 190 of Figure 19 A-26 is substantially the integral single piece structure of the holding ring 90 of Fig. 1-8, holding ring 190 do not include the inner surface 102 of the holding ring 90 of Fig. 1-8.

Holding ring 190 also has a pair of end 208 spaced apart, limits angled cutting gap 206, so that clamping Ring 190 have it is general " C "-shaped such as Figure 19 A-19B shown in, with allow holding ring 190 shrink (that is, reducing the diameter) or expansion (that is, increasing diameter).In some embodiments, holding ring 190 can be expanded and be shunk without being plastically deformed.Such as figure Shown in 19B, shown in end 208 be flat surfaces between inside radius and outer radius, define along being parallel to clamping A pair of of the plane A for the intersection axis B intersection that the central axis C of ring 190 extends.

In the structure shown in, the surface of end 208 and the direction of plane A are relative to the diameter intersected with each end 208 To plane angle having the same.In other construction (not shown), the surface of end 208 and the direction of plane A can be opposite There is different angles in sagittal plane.

In the structure shown in, intersection axis B is about the outer radius of holding ring 190 from central axis C radial deflection Half, and it is generally away from gap 206.However, intersection axis B can be with central axis in other embodiments (not shown) Line C is coaxial or intersection axis can be substantially in the side near gap 206 of central axis C.Intersection axis B can be substantially Positioned at 190 any radial distance of the outside from central axis C of 190 inside of holding ring or holding ring.

Plane A is spaced apart angle, θ to form gap 206.In an illustrated embodiment, for various diameters (for example, 4 English Very little diameter) holding ring, angle, θ between about 25 to about 35 degree (for example, about 30 degree).However, (not showing in other constructions In out), the angle, θ of the holding ring for various diameters can be approximate between about 25 to about 60 degree.For example, in some structures In, for the holding ring with about 2 inch diameters, angle, θ between about 27 to about 38 degree (for example, about 33 degree).It is some its During it is constructed, for the holding ring with about 1 inch diameter, angle, θ between about 50 degree to about 60 degree (for example, about 55 degree).

During operation as holding ring 190 is compressed, the diameter of holding ring 190 reduces to engage with pipe 22,26.Institute In the embodiment shown, when holding ring 190 is completely booted, the diameter of holding ring 190 reduces, (the example so that gap 206 narrows Such as, until width is 2mm).In an illustrated embodiment, if holding ring 190 is fully compressed, the end 208 of holding ring 190 that This contact, to prevent diameter from further decreasing, to prevent the intentional deformation of pipe 22,26.Holding ring 190 can be configured to and/ Or end 208 can be at an angle of, so that end 208 is docking together with flushing when holding ring 190 is fully compressed.Alternatively, Holding ring 190 can be configured to and/or end 208 can be at an angle of, so that when holding ring 190 is fully compressed, end 208 It is contacted near inside radius or outer radius.

In other embodiments (not shown), intersection axis B and therefore plane A can be relative to central axis C angulations Degree, to form the gap 206 for being similar to Fig. 1 to the beveling gap 106 of holding ring 90 shown in Fig. 8.In other embodiment In, plane A can be parallel to each other.

Figure 20-26 shows connector 10, uses folder shown in 190 alternate figures 1-8 of holding ring shown in Figure 19 A-19C Support ring 90.Other than holding ring 190, other components and the phase shown in Fig. 1-12 of connector 10 shown in Figure 20-26 Together, therefore, the description of the part of identical number is same as described above.

In order to radially inwardly guide holding ring 190, inclined engagement surface 82,86 is with the side similar to engagement surface 66 Formula, which is used as, leads the way.When each end nut 18 is axially inwards (that is, towards support 30) mobile, the engagement folder of engagement surface 82,86 The inclined surface 198 of support ring 190 is to compress ring 190.As described above, ring 190 radially-inwardly stress to engage and conformal associated Pipe 22,26 outer surface, to keep connector 10 to engage with pipe 22,26.

One end (that is, the end for being used for pipe 22) description of connector 10 will be engaged for having holding ring shown in Fig. 1-8 90 construction and for the installation process with the construction of holding ring 190 shown in Figure 19-Figure 26.Shown in it should be appreciated that Installation process is carried out from the both ends of connector 10 in essentially the same way.In addition, some embodiments may include by even Slidable center support in the cavity of the restriction of device 10 is connect, and the both ends of connector 10 can start simultaneously, with the centre of equilibrium The movement of support and graphite seal.

With reference to Figure 10, after the end of pipe 22,26 slides into connector 10, separate type driving insertion piece 138 is put It sets on the outer diameter of the pipe 22 of adjacent end nut 18.Separate type drives the pin 150 of insertion piece 138 and the driving of end nut 18 Hole 78 is aligned and inserted into.Plastics are removed from outer body drive hole 40 and transport dowel 140, these plastics transport the setting of dowel 140 and exist For the movement of internal part to be restricted or prevented before the mounting in the connector 10 of assembling.

Torque wrench 130 and the reaction sleeve 134 of assembling being attached in advance are placed on pipe 22 and slide into separate type It drives on insertion piece 138.The slot 154 being formed in reaction sleeve 134 is aligned with outer body drive hole 40.With reference to Figure 11, one " side " slot 154 and hole 40 are passed through to metal (for example, steel) driving dowel 144, and leaves " top " and " bottom " slot 154 and drives Dynamic hole 40 is for observing.

In the displacement for being calculated as the necessary or required sealing pressurized strut 34 of minimum Sealing Stress that application needs needed for reaching Later, user's operated torque wrench 130 is so that end nut 18 is rotated inward relative to ontology 14.User observes " top " Or " bottom " slot 154 and drive hole 40 seal the displacement of pressurized strut 34 with measurement, because which reduce gap 74 (Figure 11).When When gap 74 is desired size, holding ring 90,190 clamps pipe 22, and sealing element 50 is between pipe 22 and the component of connector 10 Form sealing.

At this point, the operation of torque wrench 130 stops, and remove remaining installation equipment (that is, reaction sleeve 134, point From formula driving insertion piece 138 etc.).Protection cap (not shown) is inserted into outer body drive hole 40, to prevent unwanted material, dirt Object etc. is contaminated to enter.In order to confirm that connector 10 has correctly been installed, cut-in pressure test port 110 is to allow to put by pipeline P It carries out testing for the external pressure of seal verification before use.

During the installation process, started first by each end nut 18 opposite with associated sealing pressurized strut 34 (that is, being radially inwardly directed to engage the outer surface of associated pipe 22,26) holding ring 90,190.By being moved axially inward end Portion's nut 18, sealing pressurized strut 34 are then also moved axially inward (that is, towards support 30), thus by the radial pressure of sealing element 50 It is reduced in pipe surface.When encountering the resistance, holding ring 90,190 engagement angled surfaces 82,86 (Fig. 5) and it is forced to radial direction Inwardly contacted with associated pipe 22,26 (Fig. 7-8 and 25-26).

Each end nut 18 continues inwardly to move, to overcome the resistance of sealing pressurized strut 34.Seal pressurized strut 34 after And also continue to move inward, continue compressive seal 50, to form the volume of more crypto set to realize pressure-resistant seal.Further The axial movement rotation of torque wrench 130 (for example, pass through) make anti-extrusion ring 58 by sealing element 50 when compressed The effect of flowing property is closed on the outer surface of associated pipe 22,26 in a manner of being similar to holding ring 90,190.End The continuation axially inward movement of nut 18 increases holding ring 90,190 and radially contacts with load on the outer surface of relevant tube 22,26 Lotus.

In some embodiments, by simply replacing sealing element 50 and reusing holding ring 90,190, connector 10 It can be removed from an application (for example, first pipe P), and be reinstalled as quickly as possible or be installed to another application (for example, another A pipeline (not shown)).Process and the installation process for removing connector 10 are substantially opposite.

The mode of operation of 10 structure of connector shown in Figure 20-26 of holding ring 190 with Figure 19 A-19C substantially with Above in conjunction with identical described in the connector 10 with holding ring 90 shown in Fig. 1-8.

Figure 13-18 shows the clamping lock pipe jointer 210 of alternate embodiment according to the present invention.210 class of connector It is similar to above description and the connector 10 shown in Fig. 1-12.About Figure 13, shown in connector 210 basically about in Heart vertical pivot is symmetrical, and any feature or element quoted on the side of connector 210 similarly belong to the another of connector 210 Mirror image features or element on side.As an example, connector 210 can be used for the pipeline P in 1 inch to 4 inch ranges On ground using and with about 150 grades (i.e. 31 bars) rated pressure.

Connector 210 includes outer body 214 and a pair of of gripper sleeve 218, and gripper sleeve 218 is inside relative to ontology 214 It is axially outwardly (that is, along the longitudinal axis of connector 210) mobile, for compressing the cavity for being maintained at and being limited by ontology 214 Interior multiple components.Connector 210 is configured to clamping and the first pipe 222 and the second pipe 226 (Figure 14) of fluid connection conduit P. Each of other components of gripper sleeve 218 and connector 210 form the cylinder of the end for reception pipe 222,226 Opening or hole 228.

Connector 210 includes the center support for being contained in the cavity of ontology 214 and being formed as separated single-piece 230.Support 230 is located near the centre of cavity, has seal sleeve 234 in every side.Support 230 has from support 230 The fin 238 that ontology extends radially outwardly, width are less than the width of the ontology of support 230.Gap 242 is formed in support 230 Reserved portion and seal sleeve 234 between.Seal sleeve 234 can be moved inward relative to ontology 214 (that is, towards support 230), to reduce the size in gap 242.

Although being referred to as " center support ", support 230 is not necessarily provided to abut with one of in pipe 222,226 Reaction surface.Center support 230 guides simultaneously concentrate tube 222,226 and with width usually to adapt to the loose of pipe insertion Tolerance.For example, the end that Figure 14 shows pipe 222,226 does not need the reaction surface of engagement seats 230 or is engaged with each other, and It is that can be arranged in spaced relation in the region defined by center support 230.

Support 230 and seal sleeve 234 include respectively engagement surface 246,250, when casing 234 is moved axially inward Multiple sealing elements (such as two sealing elements 254) are compressed therebetween.Sealing element 254 by sealed spacer part 258 and mitered line style Anti-extrusion ring 262 (AER) is axially spaced.On every side of support 230, (for example, in sealed spacer between sealing element 254 In part 258) it has been axially formed gap 260.

When sleeve 234 is moved axially inward (that is, towards support 230), the material of sealing element 254 compresses and is forced radial direction Inwardly to engage the outer surface of associated pipe 222,226, to form pressure-resistant seal.When being axially compressed, 254 diameter of sealing element To inwardly or outwardly squeezing, in the outer surface of associated pipe 222,226 and the component of connector 210 (for example, shown construction In seal sleeve 234 inner surface) between sealing is provided.

Sealing element 254 shown in as described above, is connected under water in the engineering machinery manufactured by Hydratight Co., Ltd Connect type used in the commercial product line of device.Sealing element 254 can be the stone formed by the removing graphite of such as 98% purity Black sealing element.Sealing element 50 may include laminated graphite piece, and/or is surround by belt or be spirally wound on mandrel, be formed Winding arrangement be then processed into the suitable constructions (for example, size, shape etc.) for connector 10.In other structures, Sealing element 254 may include any one of a variety of other sealed filling materials.

In the structure shown in, sealing element 254 is prevented to be squeezed into pipe 222,226 and connector 210 by anti-extrusion ring 262 Adjacent component between gap in, can be closed on pipe 222,226 (that is, being moved radially inwardly relative to it).Specifically, The component (for example, support 230, sealed spacer part 258 and seal sleeve 234) of adjacent loops 262 includes inclined engagement surface 266, it is used as and leads the way with radially-inwardly guided rings 262.

When sealing element 254, more specifically, when the top of sealing element 254 is compressed, the bottom expansion of sealing element 254.This compels Engage ring 262 further with radially inwardly guided rings 262 with inclined surface 266.Ring 262 includes helical cuts or angular cut 270, it allows them to shrink (that is, reducing the diameter) or expands (that is, diameter increase) without being plastically deformed.

Seal sleeve 234 is at least partly housed in the opening formed by gripper sleeve 218.Seal sleeve 234 also wraps It includes from the outside that the ontology of seal sleeve 234 extends radially outwardly 274.Gap 278 is formed in the part of gripper sleeve 218 and close Between big envelope cylinder 234.Gap 278 allows gripper sleeve 218 to move inward relative to ontology 214 (that is, towards seal sleeve 234 With support 230), to reduce the size in gap 278.For the ease of this inside movement, gripper sleeve 218 may include and ontology The threaded portion of 214 complementary threads region cooperation.Shown in gripper sleeve 218 can be by rotating or rotating in a controlled manner Gripper sleeve 218 and be moved axially inward.

Gripper sleeve 218 and seal sleeve 234 respectively include inclined engagement surface 282,286.When 218 axis of gripper sleeve To when moving inward, engagement surface 282,286 compresses multiple holding rings (for example, four in shown structure clamp therebetween Ring 290), it is therein at least some to be at least partially situated in the opening limited by associated gripper sleeve 218.

In the construction shown in, holding ring 290 passes through between antifriction washer or disk 294 and clamping 298 axial direction of ring spacer It separates, to prevent the interaction unfavorable when contacting with pipe 222,226.When 290 contraction or expansion of holding ring, disk 294 subtracts The small contact friction of holding ring 290.Disk 294 can be coated with dry lubricant, to help to further decrease contact friction. Other than inclined engagement surface 282,286, clamping ring spacer 298 further includes inclined surface 302, and inclined surface is used as and draws Road is radially-inwardly to guide holding ring 290.

It should be appreciated that in the alternative constructions of clamping lock pipe jointer 210 shown in Figure 13-18, holding ring 290 and position Corresponding antifriction disk 294 between holding ring 290 can be replaced with holding ring 190 shown in Figure 19 A-19C.It is clamped when using Ring 190 rather than when holding ring 290 and frictional disk 294, the operation of the clamping lock pipe jointer 210 about Figure 13-18 is retouched State should be understood as it is substantially equivalent.

Holding ring 290 shown in each has the cross section of general triangular, has and inclined surface 282,286,302 Engagement radially-inwardly to guide the inclined surface 306 of holding ring 290, and extend transverse to longitudinal axis and with one of them The surface 308 that antifriction disk 294 engages.Holding ring 290 includes spiral shape or angular cut 310 so that when they by radially-inwardly or Outward when guidance, they can shrink (that is, reducing the diameter) or expansion (that is, increasing diameter) without being plastically deformed respectively.

When sleeve 218 is axially inwards (that is, towards support 230) mobile, ring 290 compresses and is forced radially-inwardly to engage simultaneously The outer surface of conformal pipe 222,226, to keep connector 210 to engage with pipe 222,226.The inner radial surface of holding ring 290 can To form special-shaped (that is, being formed with slit, groove, convex block etc.) to realize bigger holding capability.

In order to radially-inwardly guide holding ring 290, inclined engagement surface 282,286,302, which is used as, leads the way.Work as retaining sleeve When cylinder 218 is axially inwards (that is, towards support 230) mobile, engagement surface 282,286,302 engages the nauropemeter of holding ring 290 Face 306 is to compress ring 290.Radially-inwardly stress is to engage and the outer surface of conformal associated pipe 222,226 for ring 290, to protect Connector 210 is held to engage with pipe 222,226.

About Figure 13 and 18, connector 210 further includes at least one thread pressure test port 314.In order to confirm connection Device 210 is correctly installed, and the gap 260 between each sealing element 254 of each end of connector 210 can pass through pressure Power test port 314 enters and is pressurized to desired hydraulic pressure.Hydraulic holding reasonable time length, to confirm connection The whole sealing integrity of device 210 and holding capability.

In Figure 13, connector 210 is shown at the state with pipeline P assembling.In order to assemble, the end of pipe 222,226 Portion slides into the hole 228 of connector 210 (Figure 14).When pipe 222,226 is inserted into hole 228, gap 242,278 is in them Maximum separation (Figure 15), the component (for example, holding ring 290, anti-extrusion ring 262 etc.) of connector 210 is not all by diameter To inside guidance (that is, in access aperture 228) and hole 228 is fully opened to accommodate pipe 222,226, without damage pipe 222, 226 or connector 210.

Then, connector 210 is started by activation system outside hand-held, to be clamped on pipe by inner clamps support ring 290. Activation system can be similar to above-mentioned activation system 126 outside hand-held for starting connector 210.Utilize individual center Support 230, each end of connector 210 are simultaneously activated to balance the relative motion of the component of opposite end.

During the installation process, by push or rotate using thread contact make gripper sleeve 218 towards support 230 it is axial to Interior movement so that gripper sleeve 218 encounters the resistance of seal sleeve 234, thus start first holding ring 290 (that is, by radial direction to It is interior to guide to engage the outer surface of associated pipe 222,226).By being moved axially inward gripper sleeve 218, seal sleeve 234 is also axially inwards (that is, towards support 230) mobile, thus by 254 radial compression to pipe surface of sealing element.Encountering this When resistance, 290 engagement angled surface 282,286,302 of holding ring and it is forced radially-inwardly to connect with associated pipe 222,226 It touches (Figure 16).

Gripper sleeve 218 continues inwardly to move, to overcome the resistance of sealing pressurized strut 234.Seal sleeve 234 is then Continue to move inward, continues compressive seal 254, to form more dense volume to realize pressure-resistant seal.Further axis To movement (for example, passing through rotation) make anti-extrusion ring 262 by the effect of the flowing property of sealing element 254 when compressed with It is closed on the outer surface of associated pipe 222,226 (Figure 17) similar to the mode of holding ring 290.Gripper sleeve 218 after Continuous axially inward movement increases holding ring 290 and radially contacts with load on the outer surface of relevant tube 222,226.

Once gripper sleeve 218 has moved inward preset distance (Figure 17), or when gripper sleeve 218 has been screwed Tightly when torque (that is, if by being moved inward with the thread contact of ontology 214) to reach predeterminated level, gripper sleeve 218 Axially inward movement just stop.In order to confirm that connector 210 has correctly been installed, cut-in pressure test port 314 is to allow The external pressure test for being used for seal verification is carried out before pipeline is come into operation.

It, can be from an application (for example, the first pipe by simply replacing sealing element 254 and reusing holding ring 290 Road P) it removes connector 210 and is reinstalled or be installed on another application (for example, another pipeline (not shown)).It moves Except the process and installation process of connector 210 are substantially opposite.

Figure 27-32B shows the clamping lock pipe jointer 410 of another alternate embodiment according to the present invention.Connector 410 are similar to above description and the connector 10 and 210 shown in Fig. 1-2 6.For Figure 27, shown in connector 410 It is symmetrical basically about center vertical pivot, and any feature or element quoted on the side of connector 410 similarly belong to Mirror image features or element on the other side of connector 410.The appended drawing reference of the common elements of connector 410 be and connector 10 Identical appended drawing reference adds " 400 ".

In some installations operation, when by rotating first end nut while starting first seal and the first holding ring Come when starting first end, it is upper and pull pipe until that sealing element is compressed to is predetermined that the first holding ring is closed into associated first pipe Distance or torque.When second pipe dock with the first pipe when, when by rotation the second end nut and meanwhile start second seal with When second holding ring so that start second end in the same way, the second holding ring is closed on the second pipe and attempts pulling second Pipe, but due to the adjoining of the first pipe and opposite resistance and can not pull.

Overcome the friction between the second holding ring and the second pipe compressed with mobile second seal torque be it is excessive, And torque needed for substantially exceeding first end.Tube connector generally can not be in opposite end with different torque Value Operations.It is this Situation can be alleviated by not abutting pipe before starting second end, but this relative positioning of pipe is unable to get guarantee.

Connector 410 generally includes the knot for separating or decoupling the starting of sealing element 450 with the starting of holding ring 590 Structure.In the structure shown in, which includes one or more positioning pins 700, these positioning pins are engageable in holding ring 590 To limit the radial compression of holding ring 590 and the engagement with pipe (not shown) in gap 606.In this configuration, sealing element 450 It is activated, and pin 500 moves away gap 606 allows finally to start holding ring 590 to engage and clamp pipe.The structure is kept Holding ring 590 is far from pipe, until sealing element starts, to prevent pipe dragged for operation.When special without clamping in tube connector When sign, this structure may not be required.

End nut 418 forms opening 704 to accommodate each pin 700 (for one in the construction shown in).In other structures It makes in (not shown), end nut 418 can form multiple openings 704, more in end nut 418 to be supported on to allow The pin 700 of a difference circumferential position is housed in gap 606.

Pin 700 and opening 704 include fit structure (for example, screw thread), and pin 700 is adjustably positioned in end nut On 418.Pin 700 is configured to optionally extend into the gap 606 of holding ring 590 or move away gap 606.Institute In the structure shown, when not needing pin 700 in gap 606, pin 700 is removed from end nut 418.

Pin 700 has head (referring to Figure 31) 708, and head (can be not shown with tool；For example, screwdriver) it engages with opposite It is adjusted in end nut 418.Axially inward movement of 712 banking pin 700 of shoulder in end nut 418 on pin 700.Pin 700 have the engagement surface 716 for engaging with holding ring 590.In the structure shown in, only a part (example of pin 700 Such as, between shoulder 712 and head 708) it is equipped with screw thread, and engagement surface 716 is relative smooth.The structure shown in In (referring also to Figure 19), the end 608 of holding ring 590 is generally flat and engages with engagement surface 716.End 608 Flat configuration can reduce manufacture holding ring 590 cost.

In another structure (referring to Figure 33), each end 608 of holding ring 590 includes special-shaped (such as bending) part 720, which engages before holding ring 590 starts and clamps pipe with the engagement surface 716 of pin 700.Each end 608 further include the pieceable contact portion 724 when pin 700 is removed, reduced with limiting the further diameter of holding ring 590/ Radial compression, to prevent the intentional deformation of pipe.The length of contact portion 724 is less than the radius of pin 700, to ensure profiled portion 720 engaged with pin 700 and contact portion 724 holding do not engage.

Figure 35 shows the alternative constructions of locating pin structure.In this configuration, it is provided with two pins 700 (and end spiral shell At least two corresponding openings in mother 418 are 704).Each pin 700 can be engaged with an end 608 of holding ring 590, with limit The starting of holding ring 590 processed.In the structure shown in, each end 608 have profiled portion 720, with associated pin 700 Engagement surface 716 engage, and each profiled portion 720 the opposite side of pin axis around pin 700 circumference a part Extend.Shown in multi-pin structure can be set for relatively large clamping czermak space 606, to prevent holding ring 590 to be closed into pipe On.

Latch structure can be applied to beveling holding ring (holding ring 90 as escribed above).In such structure (not shown) In, pin (such as pin 700) is positioned at angular cut of the radial motion to limit beveling holding ring to clamp pipe P. holding ring In in the plane different from above-mentioned pin 700.In one example, make if end nut is configured to (for example, being made longer) Holding ring is obtained in the outside of outer body and is not entered in outer body (while starting face of adjacent end nut), can be inserted radially into And pin is removed, so that similar structures are applied to C clamp support ring 590.

Figure 28 A-32B shows the installation of tube connector 410.As shown in Figure 28 A-28B (and Figure 34 A-34E), Guan Lian It connects device 410 and has assembled and carried out installation and prepare.As shown in Figure 29 A-29B, end nut 418 starts to be rotated or reverse.End Nut 418 rotates and advances, and sealing element 450 slightly compresses (for example, about 1 ton force).During this period, holding ring 590 is closed into pin On 700, and it cannot compress radially further to engage and clamp pipe.Hereafter, as shown in figure 30, end nut 418 continues to revolve Turn and advance, and sealing element 450 continues to compress.

Since graphite-steel frictional force is lower than steel-steel frictional force, pressurized strut 434 rotates, so that it is guaranteed that pin 700 does not have to Make drive pin.As the end of holding ring 590 608, pin 700 only exists in compressive state.Since pin 700 is not subject to torque, end Portion's nut 418 is less likely to be damaged, so as to remain elongated design.

As sealing element 450 is in correct compressive state (referring to Figure 31), pin 700 is removed.Such as Figure 32 A-32B institute Show, end nut 418 continue to rotate to previously described torque level (once for example, end nut 418 has moved inward Preset distance has been tightened to reach the torque of predeterminated level), pipe is engaged and clamps to start holding ring 590, together When keep sealing element 450 compression.Then operation terminates.

As described above, by providing for simple replacement of sealing element 450 and reusing holding ring 490 (example can be applied from one Such as, first pipe P) it removes connector 410 and is reinstalled or be installed to another application (for example, another pipeline is (not Show)) on.Process and the installation process for removing connector 410 are substantially opposite.

The component of connector 10,210,410 and the material of pipeline P and the media compatibility conveyed by pipeline P.In some knots In structure, structure member can be formed by suitable material, such as steel, stainless steel, carbon steel etc..

Although the present invention is described in detail by reference to certain preferred embodiments, present invention as described above one There are change and modification in the scope and spirit of a or multiple independent aspects.

One or more independent characteristics of the invention and independent advantages can be set forth in claim.

Claims

1. a kind of tube connector, for the pipe in connecting pipe, the tube connector includes:

Outer body, the outer body are formed with cavity；

First holding ring, first holding ring support in the cavity, first holding ring formed the first angular cut with First holding ring is allowed to reduce the diameter to engage with one of them pipe；

Second holding ring, second holding ring is adjacent to first holding ring；

End nut, the end nut form the nut bore for accommodating first holding ring and the second holding ring, nut engagement Surface extend in the nut bore and can be configured to the first clamping engagement of loops, the end nut relative to The outer body is moved axially inward to compress and at least engage first holding ring with one of them described pipe；And

Disk between first holding ring and second holding ring, the disk are configured to reduce by first folder Friction between support ring and second holding ring.

2. tube connector as described in claim 1, wherein first holding ring has triangular cross section.

3. tube connector as claimed in claim 2, wherein the outer body defines an axis, wherein first holding ring has There is a ring engaging surface, the ring engaging surface is relative to axis extension at an angle and can be with the nut engagement surface Engagement, first holding ring have the axially inner face extended transverse to the axis, and the inner surface faces described second Holding ring.

4. tube connector as described in claim 1, wherein the outer body is equipped with the radial surface for extending into the cavity, Wherein the tube connector includes that support is close in the cavity and between the radial surface and the end nut Sealing, the sealing element can be engaged between a component of the tube connector and one of them described pipe.

5. tube connector as claimed in claim 4, wherein the sealing element can be engaged in the outer body and it is described wherein One of between pipe.

6. tube connector as claimed in claim 4 further includes the anti-extrusion ring of neighbouring sealing element positioning.

7. tube connector as claimed in claim 6, wherein the anti-extrusion is equipped with angular cut to allow the anti-extrusion ring It reduces the diameter to be engaged with one of them described pipe.

8. tube connector as claimed in claim 4, wherein the sealing element includes graphite.

9. tube connector as claimed in claim 4 further includes the sealing pressurized strut of support in the cavity, the end spiral shell Female being moved axially inward causes the sealing pressurized strut to be moved axially inward to compress the sealing element.

10. tube connector as claimed in claim 9, wherein second holding ring has ring engaging surface, wherein described close Sealing pressurized strut has pressurized strut engagement surface, and the pressurized strut engagement surface can be with the ring engaging surface of second holding ring Engagement.

11. tube connector as claimed in claim 9, wherein the sealing pressurized strut is formed with actuation bore, the sealing element It is housed in the actuation bore.

12. tube connector as claimed in claim 4, wherein the sealing element is first seal, wherein the tube connector It further include being located at the intracorporal second seal of the chamber, the second seal is located at the radial surface and the end nut Between and be spaced apart with the first seal, the second seal can be engaged in a component and the institute of the tube connector It states between one of them pipe.

13. tube connector as claimed in claim 12 further includes the sky between the first seal and second seal The port that gap is in fluid communication, the gap is pressurizeed by the port.

14. tube connector as described in claim 1, wherein the end nut is threadedly engaged with the outer body, the end The rotation of portion's nut causes the end nut to be moved axially inward.

15. a kind of tube connector, for the pipe in connecting pipe, the tube connector includes:

Outer body, the outer body, which is formed with cavity and is equipped with, extends into the intracorporal radial surface of the chamber；

Holding ring, in the cavity, the holding ring is formed with angular cut to allow the holding ring for the holding ring support It reduces the diameter to be engaged with one of them pipe；

End nut, the end nut form the nut bore for accommodating the holding ring, and nut engagement surface extends to the spiral shell In female hole and it can be configured to move axially inwards relative to the outer body with the clamping engagement of loops, the end nut It moves to compress the holding ring；

Sealing element, the sealing element is located in the cavity and between the radial surface and the end nut, described Sealing element can be engaged between a component of the tube connector and one of them described pipe；And

Pressurized strut is sealed, in the cavity, the sealing pressurized strut extends at least partly into institute for the sealing pressurized strut support It states in nut bore, being moved axially inward for the end nut causes the sealing pressurized strut to be moved axially inward described in compression Sealing element.

16. tube connector as claimed in claim 15, wherein the outer body, which is equipped with, extends into the chamber intracorporal second Radial surface, wherein the tube connector further include:

Second holding ring, in the cavity, second holding ring forms angular cut to allow for the second holding ring support Second holding ring is reduced the diameter to engage with wherein another pipe；

The second end nut, the second end nut are formed with the second nut bore for accommodating second holding ring, the second spiral shell Female engagement surface extends into second nut bore and can clamp engagement of loops, the second end nut with described second It is configured to be moved axially inward relative to the outer body to compress second holding ring；

Second seal, the second seal are located in the cavity and are located at second radial surface and the second end Between portion's nut, the second seal can be engaged between a component of the tube connector and wherein another pipe； And

Second sealing pressurized strut, in the cavity, the second sealing pressurized strut is at least for the second sealing pressurized strut support Second nut bore is extended partially into, being moved axially inward for the second end nut causes the second sealing actuation Cylinder is moved axially inward to compress the second seal.

17. tube connector as claimed in claim 16, further includes:

Third holding ring, the neighbouring holding ring mentioned for the first time of the third holding ring are simultaneously housed in the spiral shell mentioned for the first time In female hole；And

4th holding ring, the 4th holding ring is adjacent to second holding ring and is housed in second nut bore.

18. tube connector as claimed in claim 15, wherein the holding ring has triangular cross section.

19. tube connector as claimed in claim 18, wherein the outer body defines an axis, wherein the holding ring has Ring engaging surface, the ring engaging surface is relative to axis extension at an angle and can connect with the nut engagement surface It closes, the holding ring has the axially inner face extended transverse to the axis.

20. tube connector as claimed in claim 19, wherein the holding ring is the first holding ring, the tube connector is also wrapped The second holding ring is included, second holding ring is adjacent to first holding ring and is contained in the nut bore mentioned for the first time, The inner surface faces second holding ring.

21. tube connector as claimed in claim 20 further includes between first holding ring and the second holding ring Disk, the disk are configured to reduce the friction between first holding ring and the second holding ring.

22. tube connector as claimed in claim 15 further includes being located in the cavity and positioning adjacent to the sealing element Anti-extrusion ring, the anti-extrusion are equipped with angular cut and are connect with allowing the anti-extrusion ring to reduce the diameter with one of them described pipe It closes.

23. tube connector as claimed in claim 15, wherein the sealing element includes graphite.

24. tube connector as claimed in claim 15, wherein the sealing element is first seal, the tube connector is also wrapped It includes and is located at the intracorporal second seal of the chamber, the second seal is between the radial surface and the end nut And be spaced apart with the first seal, the second seal can be engaged in the tube connector a component and it is described its One of between pipe, the sealing pressurized strut is moved axially inward by the end nut in the sealing pressurized strut and described The second seal is compressed between radial surface.

25. tube connector as claimed in claim 24 further includes the sky between the first seal and second seal The port that gap is in fluid communication, the gap is pressurizeed by the port.

26. tube connector as claimed in claim 15, wherein the end nut is threadedly engaged with the outer body, the end The rotation of portion's nut causes the holding ring to reduce the diameter.

27. a kind of method that tube connector is assembled to at least pipe in pipeline, the tube connector includes being equipped with cavity Second clamping of outer body, the first holding ring for supporting in the cavity and being equipped with angular cut, neighbouring first holding ring Ring and end nut equipped with nut bore, the nut bore accommodate first holding ring and the second holding ring, nut engagement Surface extends into the nut bore and can press from both sides with the first clamping engagement of loops, first holding ring, described second Support ring and the end nut define a hole of the tube connector, which comprises

First pipe is inserted into the hole of the tube connector, wherein when first pipe is inserted into the hole, described first Holding ring and second holding ring are not all led into radially-inwardly in the hole of the tube connector and described Hole is fully opened to accommodate first pipe；And

The end nut is moved axially inward relative to the outer body to compress and make at least described first holding ring and institute State the engagement of the first pipe.

28. a kind of method that tube connector is assembled to at least pipe in pipeline, the tube connector includes being equipped with cavity simultaneously Equipped with the clamping for extending into the outer body of the intracorporal radial surface of the chamber, supporting in the cavity and being equipped with angular cut Ring, the end nut equipped with nut bore, the sealing actuation positioned at the intracorporal sealing element of the chamber and support in the cavity Cylinder, the nut bore accommodate the holding ring, and nut engagement surface extends into the nut bore and can be with the clamping Engagement of loops, the sealing element between the radial surface and the end nut, at least partly prolong by the sealing pressurized strut It extends into the nut bore, which comprises

First pipe is inserted into the tube connector；

The end nut is moved axially inward relative to the outer body to compress and make the holding ring and first pipe Engagement；And

The sealing pressurized strut is moved axially inwards relative to the outer body by being moved axially inward for the end nut It moves to compress the sealing element between the tube connector and first pipe.

29. a kind of tube connector, for the pipe in connecting pipe, the tube connector includes:

Outer body, the outer body are formed with cavity；

Holding ring, in the cavity, the holding ring is formed with gap to allow the holding ring to subtract for the holding ring support Minor diameter with one of them pipe to engage；And

End nut, the end nut form the nut bore for accommodating the holding ring, and nut engagement surface extends to the spiral shell In female hole and it can be configured to relative to the outer body with the clamping engagement of loops, the end nut along an axis shaft To moving inward to compress and make the holding ring to engage with one of them described pipe；

Wherein the outer body is equipped with the radial surface for extending into the cavity, wherein the tube connector further includes being supported on In the cavity and the first seal between the radial surface and the end nut, the first seal can It is engaged between a component of the tube connector and one of them described pipe；

The tube connector further includes being located at the intracorporal second seal of the chamber, and the second seal is located at the radial table It is spaced apart between face and the end nut and with the first seal, the second seal can be engaged in the Guan Lian It connects between a component of device and one of them described pipe；And

The tube connector further includes the port that the gap between the first seal and second seal is in fluid communication, institute Gap is stated to pressurize by the port.

30. tube connector as claimed in claim 29, wherein the holding ring has triangular cross section.

31. tube connector as claimed in claim 30, wherein the outer body defines an axis, wherein the holding ring has First ring engaging surface, first ring engaging surface is relative to axis extension at an angle and can connect with the nut Close surface engagement.

32. tube connector as claimed in claim 29, wherein the first seal can be engaged in the outer body and institute It states between one of them pipe.

33. tube connector as claimed in claim 29 further includes the anti-extrusion ring of neighbouring first seal positioning.

34. tube connector as claimed in claim 33, wherein the anti-extrusion is equipped with angular cut to allow the anti-extrusion Ring is reduced the diameter to engage with one of them described pipe.

35. tube connector as claimed in claim 29, wherein the first seal includes graphite.

36. tube connector as claimed in claim 29 further includes the sealing pressurized strut of support in the cavity, the end Being moved axially inward for nut causes the sealing pressurized strut to be moved axially inward to compress the first seal.

37. tube connector as claimed in claim 36, prolong wherein the holding ring has relative to the axis is at an angle The second ring engaging surface stretched, wherein the sealing pressurized strut has pressurized strut engagement surface, the pressurized strut engagement surface energy It is enough to be engaged with second ring engaging surface.

38. tube connector as claimed in claim 37, wherein the sealing pressurized strut is formed with actuation bore, the sealing element It is housed in the actuation bore.

39. tube connector as claimed in claim 29, wherein the end nut is threadedly engaged with the outer body, the end The rotation of portion's nut causes the end nut to be moved axially inward.

40. tube connector as claimed in claim 29 further includes the pin movably positioned in the gap.

41. tube connector as claimed in claim 40 is at least a partially formed between the gap wherein the holding ring has Gap surface, wherein the clearance surface can close described to limit with the pin joint in the moving process of the end nut The compression of holding ring.

42. tube connector as claimed in claim 40, wherein the pin is adjustably supported by the end nut.

43. tube connector as claimed in claim 42, wherein the pin is threadedly engaged with the end nut.

44. tube connector as claimed in claim 40 further includes the sealing element of support in the cavity, the sealing element energy It is enough engaged between a component of the tube connector and one of them described pipe, the end nut is moved axially inward cause The sealing element is compressed, wherein the pin is supported for after the sealing element is compressed, the pin removes the gap, Wherein it is constructed such that the end nut relative to the further of the outer body after the end nut and holding ring It is moved axially inward and compresses and engage the holding ring with one of them described pipe.

45. a kind of tube connector, for the pipe in connecting pipe, the tube connector includes:

Holding ring, in the cavity, the holding ring is formed with gap to allow the holding ring to subtract for the holding ring support Minor diameter with one of them pipe to engage；

46. tube connector as claimed in claim 45, wherein the outer body, which is equipped with, extends into the chamber intracorporal second Radial surface, wherein the tube connector further include:

Second holding ring, in the cavity, second holding ring forms gap to allow for the second holding ring support The second holding ring is stated to reduce the diameter to engage with wherein another pipe；

47. tube connector as claimed in claim 45, wherein the holding ring has triangular cross section.

48. tube connector as claimed in claim 47, wherein the outer body defines an axis, wherein the holding ring has Ring engaging surface, the ring engaging surface is relative to axis extension at an angle and can connect with the nut engagement surface It closes.

49. tube connector as claimed in claim 45 further includes being located in the cavity and positioning adjacent to the sealing element Anti-extrusion ring, the anti-extrusion are equipped with angular cut and are connect with allowing the anti-extrusion ring to reduce the diameter with one of them described pipe It closes.

50. tube connector as claimed in claim 45, wherein the sealing element includes graphite.

51. tube connector as claimed in claim 45, wherein the sealing element is first seal, the tube connector is also wrapped It includes and is located at the intracorporal second seal of the chamber, the second seal is between the radial surface and the end nut And be spaced apart with the first seal, the second seal can be engaged in the tube connector a component and it is described its One of between pipe, the sealing pressurized strut is moved axially inward by the end nut in the sealing pressurized strut and described The second seal is compressed between radial surface.

52. tube connector as claimed in claim 51 further includes the sky between the first seal and second seal The port that gap is in fluid communication, the gap is pressurizeed by the port.

53. tube connector as claimed in claim 45, wherein the end nut is threadedly engaged with the outer body, the end The rotation of portion's nut causes the holding ring to reduce the diameter.

54. tube connector as claimed in claim 45 further includes pin, the pin movably position in the gap with The compression of the holding ring is limited in the end nut moving process.

55. tube connector as claimed in claim 54, wherein the pin is supported for after the sealing element is compressed, it is described Pin removes the gap, wherein being configured so that the end nut relative to described outer after the end nut and holding ring Moving inward axially further for ontology is compressed and engages the holding ring with one of them described pipe.

56. a kind of tube connector, for the pipe in connecting pipe, the tube connector includes:

Outer body, the outer body are formed with cavity；

End nut, the end nut form the nut bore for accommodating the holding ring, and nut engagement surface extends to the spiral shell In female hole and it can be configured to move axially inwards relative to the outer body with the clamping engagement of loops, the end nut It moves to compress and make the holding ring to engage with one of them described pipe；And

Pin, the pin are movably located in the gap to limit the holding ring in the end nut moving process Compression.

57. tube connector as claimed in claim 56 is at least a partially formed between the gap wherein the holding ring has Gap surface, wherein the clearance surface can close described to limit with the pin joint in the moving process of the end nut The compression of holding ring.

58. tube connector as claimed in claim 56, wherein the pin is adjustably supported by the end nut.

59. tube connector as claimed in claim 58, wherein the pin is threadedly engaged with the end nut.

60. tube connector as claimed in claim 56 further includes the sealing element of support in the cavity, the sealing element energy It is enough engaged between a component of the tube connector and one of them described pipe, the end nut is moved axially inward cause The sealing element is compressed, wherein the pin is supported for after the sealing element is compressed, the pin removes the gap, Wherein it is constructed such that the end nut relative to the further of the outer body after the end nut and holding ring It is moved axially inward and compresses and engage the holding ring with one of them described pipe.

61. a kind of method that tube connector is assembled to at least pipe in pipeline, the tube connector includes being equipped with cavity Outer body supports in the cavity and is equipped with the holding ring in gap and the end nut equipped with nut bore, the nut bore Accommodate the holding ring, nut engagement surface extends into the nut bore and can be with the clamping engagement of loops, the folder Support ring and the end nut define a hole of the tube connector, which comprises

First pipe is inserted into the hole of the tube connector, wherein when first pipe is inserted into the hole, the folder Support ring is not led into radially-inwardly in the hole of the tube connector and the hole fully opens described in receiving First pipe；And

The end nut is moved axially inward relative to the outer body to compress and make the holding ring and first pipe Engagement.

62. a kind of method that tube connector is assembled to at least pipe in pipeline, the tube connector includes being equipped with cavity simultaneously Equipped with extend into the intracorporal radial surface of the chamber outer body, support in the cavity and be equipped with gap holding ring, End nut equipped with nut bore, the sealing pressurized strut positioned at the intracorporal sealing element of the chamber and support in the cavity, The nut bore accommodates the holding ring, and nut engagement surface is extended into the nut bore and can be connect with the holding ring It closes, between the radial surface and the end nut, the sealing pressurized strut extends at least partly into the sealing element Enter in the nut bore, which comprises

First pipe is inserted into the tube connector；

63. a kind of method that tube connector is assembled to at least pipe in pipeline, the tube connector includes being equipped with cavity simultaneously Equipped with extend into the intracorporal radial surface of the chamber outer body, support in the cavity and be equipped with gap holding ring, End nut equipped with nut bore, the pin being movably located in the gap, be located at the intracorporal sealing element of the chamber and The sealing pressurized strut of support in the cavity, the nut bore accommodate the holding ring, and nut engagement surface extends into institute State in nut bore and can be located at the clamping engagement of loops, the sealing element radial surface and the end nut it Between, the sealing pressurized strut extends at least partially into the nut bore, which comprises

First pipe is inserted into the tube connector；

The end nut is moved axially inward relative to the outer body so that the holding ring closes to limit with the pin joint Make the compression of the holding ring towards first pipe；

The sealing pressurized strut is moved axially inwards relative to the outer body by being moved axially inward for the end nut It moves to compress the sealing element between the tube connector and first pipe；

Later, the pin is removed from the gap；And

Later, the end nut is moved axially inward relative to the outer body to compress and make the holding ring and described the The engagement of one pipe.