CN106795987A

CN106795987A - Tube connector

Info

Publication number: CN106795987A
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: 2017-05-31
Anticipated expiration: 2035-09-02
Also published as: WO2016036841A1; NO20170054A1; BR112017002692A2; CN106795987B; GB2542103A; GB201700896D0

Abstract

A kind of tube connector of the pipe in connecting pipe.The connector can include：It is formed with the outer body of cavity；The holding ring in the cavity is supported on, the holding ring forms gap, is engaged with one of them pipe with allowing the holding ring to reduce diameter；And end nut, the end nut forms the nut bore for housing the holding ring, nut composition 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, with compress and cause at least it is described first clamping engagement of loops described in one of them pipe.

Description

Tube connector

Technical field

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

The content of the invention

Top side Mechanical pipe couplings are generally used for the various fluids (for example, water, waste, draining etc.) of connection conveying or are used for It is vented the pipeline of purpose.In the presence of the various small pipeline connectors using various tube grip methods, such as using swaged forging, occlusion, pressure System, enlarging, 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, there is provided a kind of tube connector, 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 is supported in the cavity, First holding ring forms the first angular cut and is engaged with one of them pipe with allowing first holding ring to reduce diameter；The Two holding rings, second holding ring is adjacent to first holding ring；And end nut, the end nut formation collecting post State the nut bore of the first holding ring and the second holding ring, nut composition surface extends in the nut bore and can be with described the One clamping engagement of loops, the end nut is configured to be moved radially inwardly relative to the outer body compress and at least make First holding ring is engaged with described one of them pipe.

At another independent aspect, there is provided a kind of tube connector, for the pipe in connecting pipe.The connector can Outer body is generally comprised, the outer body is formed with cavity and is provided with the radial surface extended into the cavity；Holding ring, The holding ring is supported in the cavity, the holding ring be formed with angular cut with allow the holding ring reduce diameter with One of them pipe engagement；End nut, the end nut forms the nut bore for housing the holding ring, and nut composition surface prolongs Extend in the nut bore and can be configured to relative to the outer body with the clamping engagement of loops, the end nut Move radially inwardly to compress the holding ring；Seal, the seal is located in the cavity and is located at the radial direction table Between face and the end nut, the seal can be engaged in a part and described one of them pipe of the connector Between；And pressurized strut is sealed, the sealing pressurized strut is supported in the cavity, and the sealing pressurized strut is extended at least partly 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 State seal.

At another independent aspect, there is provided a kind of method of at least pipe being assembled to tube connector in pipeline. The connector may include to be provided with the outer body of cavity, be supported on the cavity in and be provided with the first holding ring, the neighbour of angular cut Second holding ring of nearly first holding ring and the end nut of nut bore is provided with, the nut bore houses described first Holding ring and the second holding ring, nut composition surface are extended into the nut bore and can connect with first holding ring Close.Methods described can be generally comprised inserts the connector by the first pipe；And be moved axially inward relative to the outer body The end nut is to compress and at least described first holding ring is engaged with first pipe.

At another independent aspect, there is provided a kind of method of at least pipe being assembled to tube connector in pipeline. The connector may include to be provided with cavity and being provided with extend into the radial surface in the cavity outer body, be supported on it is described Cavity is interior and is provided with the holding ring of angular cut, is provided with the end nut of nut bore, the seal in the cavity, Yi Jizhi The sealing pressurized strut in the cavity is supportted, the nut bore houses the holding ring, and nut composition surface extends into described Nut bore is interior and can be located between the radial surface and the end nut with the clamping engagement of loops, the seal, The sealing pressurized strut is extended at least partially into the nut bore.Methods described can generally comprise the insertion of the first pipe is described Connector；The end nut is moved axially inward to compress relative to the outer body and makes the holding ring with described first Pipe is engaged；And the sealing pressurized strut is made relative to the outer body axial direction by being moved axially inward for the end nut Move inward and compress the seal between the connector and first pipe.

At another independent aspect, there is provided a kind of tube connector, for the pipe in connecting pipe.The connector can Generally comprise：Outer body, the outer body is formed with cavity；Holding ring, the holding ring is supported in the cavity, the folder Held in ring is formed with gap and is engaged with one of them pipe with allowing the holding ring to reduce diameter；And end nut, the end Portion nut forms the nut bore for housing the holding ring, and nut composition surface extends in the nut bore and can be with the folder Held in ring is engaged, and the end nut is configured to be moved radially inwardly to compress relative to the outer body and makes the clamping Ring is engaged with described one of them pipe.

At another independent aspect, there is provided a kind of tube connector, for the pipe in connecting pipe.The connector can Generally comprise：Outer body, the outer body is formed with cavity and is provided with the radial surface extended into the cavity；Clamping Ring, the holding ring is supported in the cavity, the holding ring be formed with gap with allow the holding ring reduce diameter with Engaged with one of them pipe；End nut, the end nut forms the nut bore for housing the holding ring, nut composition surface Extend in the nut bore and can be configured to relative to described outer with the clamping engagement of loops, the end nut Body moves radially inwardly to compress the holding ring；Seal, the seal is located in the cavity and is located at the radial direction Between surface and the end nut, the seal can be engaged in a part and described one of them pipe of the connector Between；And pressurized strut is sealed, the sealing pressurized strut is supported in the cavity, and the sealing pressurized strut at least partly extends Enter 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 seal.

At another independent aspect, there is provided a kind of method of at least pipe being assembled to tube connector in pipeline. The connector may include to be provided with the outer body of cavity, be supported on the cavity in and be provided with the holding ring in gap and be provided with The end nut of nut bore, the nut bore houses the holding ring, and nut composition surface is extended into the nut bore simultaneously Can be with the clamping engagement of loops.Methods described can be generally comprised：First pipe is inserted into the connector；And relative to described Outer body is moved axially inward the end nut to compress and the holding ring is engaged with first pipe.

At another independent aspect, the connector can be generally comprised to be provided with cavity and be provided with and extend into the cavity The outer body of interior radial surface, the holding ring for being supported in the cavity and being provided with gap, the end nut for being provided with nut bore, Seal in the cavity and the sealing pressurized strut being supported in the cavity, the nut bore house the folder Held in ring, nut composition surface is extended into the nut bore and can be located at institute with the clamping engagement of loops, the seal State between radial surface and the end nut, the sealing pressurized strut is extended at least partially into the nut bore.It is described Method can be generally comprised：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 the holding ring is engaged with first pipe；And institute is made by being moved axially inward for the end nut State sealing pressurized strut and be moved axially inward relative to the outer body and compress institute between the connector and first pipe State seal.

At another independent aspect, there is provided a kind of tube connector, for the pipe in connecting pipe.The connector can Including：Outer body, the outer body is formed with cavity；Holding ring, the holding ring is supported in the cavity, the holding ring It is formed with gap and is engaged with one of them pipe with allowing the holding ring to reduce diameter；End nut, the end nut shape Into the nut bore for housing the holding ring, nut composition surface is extended in the nut bore and can connect with the holding ring Close, the end nut is configured to be moved radially inwardly to compress relative to the outer body and makes the holding ring and institute State the engagement of one of them pipe；And sell, the pin is movably positioned in the gap and is moved through with the end nut The compression of the holding ring is limited in journey.

At another independent aspect, there is provided a kind of method of at least pipe being assembled to tube connector in pipeline. The connector may include to be provided with cavity and being provided with extend into the radial surface in the cavity outer body, be supported on it is described Cavity is interior and is provided with the holding ring in gap, is provided with the end nut of nut bore, pin, the position being movably positioned in the gap In the seal in the cavity and the sealing pressurized strut being supported in the cavity, the nut bore houses the clamping Ring, nut composition surface extends into the nut bore and can be located at described with the clamping engagement of loops, the seal Between radial surface and the end nut, the sealing pressurized strut is extended at least partially into the nut bore.The side Method can be generally comprised：First pipe is inserted into the connector；The end nut is moved axially inward relative to the outer body So that the holding ring is closed so as to limit the holding ring towards the compression of first pipe with the pin joint；By the end Being moved axially inward for nut makes the sealing pressurized strut be moved axially inward with the connector relative to the outer body The seal is compressed and first pipe between；Afterwards, the pin is removed from the gap；And, afterwards, relative to institute Outer body is stated to be moved axially inward the end nut to compress and the holding ring is engaged with first pipe.

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

Brief description of the drawings

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

Fig. 2 is the decomposing schematic representation of the tube connector of Fig. 1, exemplified with the part of tube connector both sides.

Fig. 3 is the decomposing schematic representation of the tube connector of Fig. 1, exemplified with the part that tube connector is unilateral.

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

Fig. 5 be Fig. 1 tube connector a part cross-sectional view, exemplified between end nut and outer body most Wide arc gap.

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

Fig. 7 is the cross-sectional view of a tube connector part of Fig. 1, exemplified with entering one between end nut and outer body The gap for reducing is walked, its correspondence is expected to start gap size.

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

Fig. 9 is that the multiple of each part of the hand-held outside activation system of the tube connector of Fig. 1 is three-dimensional to be illustrated for starting Figure.

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

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

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

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

Figure 14 is the cross-sectional view of the tube connector of Figure 13, exemplified with the pipe engagement that tube connector is connected with two.

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

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

Figure 17 is the cross-sectional view of a tube connector part of Figure 13, exemplified between gripper sleeve and seal sleeve The gap for further reducing, its correspondence is expected to start gap size.

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

Each schematic diagrames of Figure 19 A-19C exemplified with holding ring.

Figure 20 is the decomposing schematic representation of the tube connector of the holding ring for including Figure 19 A-19C.

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 a tube connector part of Figure 20, exemplified between end nut and outer body Maximal clearance.

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

Figure 25 is the cross-sectional view of a tube connector part of Figure 20, is entered exemplified between end nut and outer body The gap that one step reduces, its correspondence is expected to start gap size.

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

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

Figure 28 A-28B are that the tube connector of Figure 27 carries out the partial schematic diagram installed and prepare.

Figure 29 A-29B are partial schematic diagram of the tube connector of Figure 27 after rotary end nut is started.

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

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 are the schematic diagrames of part-structure of the tube connector of Figure 27 after rotary end nut is continued.

Figure 33 is the schematic perspective view of the holding ring of the tube connector of Figure 27.

Figure 34 A-34E are the schematic diagrames of a tube connector part of Figure 27.

Figure 35 is the schematic perspective view of an alternative constructions of end nut, holding ring and alignment pin.

Specific embodiment

Before describing the embodiments in more detail, it should be understood that the invention is not restricted to institute hereafter or in accompanying drawing in the application The detailed construction or arrangement of elements of description.The present invention can be the embodiment that other manner is realized.Furthermore, it is to be understood that this paper institutes The wording and term for using are solely for describing purposes, should not the explanation of being construed as limiting property.It is used herein " including ", "comprising", And similar wording is meant comprising items listed thereafter, its equivalent and other additional things.Used herein " by ... Composition " and similar wording are meant only comprising items listed thereafter and its equivalent..

Fig. 1-4 shows clamping lock (grip-lock) pipe jointer 10 according to an embodiment of the invention.On Fig. 1 For, shown connector 10 is symmetrical basically about center vertical pivot, and any feature quoted on a side-connector 10 Or element also belongs to the mirror image features on the opposite side of connector 10 or element.As an example, connector 10 can be used for 1 Inch is used and with about 150 grades of rated pressures of (i.e. 31 bars) to the ground on the pipeline P (Fig. 8) in 4 inch ranges. In certain 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, and it is relative to body 14 vertically (that is, along connection The longitudinal axis of device 10) inwardly or outwardly move, for compressing the various parts being maintained in the cavity limited by connector 10. Connector 10 is configured to first pipe 22 and the second pipe 26 (Fig. 8) of clamping and fluid connection conduit P.End nut 18 is with The various other parts of the connector 10 of description are respectively formed cylinder open or the hole of the end for accommodating pipe 22,26 in face 28。

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

Although being referred to as " center support ", bearing 30 is not necessarily provided with what is abutted with one of in pipe 22,26 Reaction surface.Center support 30 generally guides simultaneously concentrate tube 22,26 and with width to adapt to the loose tolerance that pipe is inserted. For example, Fig. 8 shows that the end of pipe 22,26 need not abut the reaction surface of bearing 30 or be engaged with each other, and can be with Relation spaced apart is arranged in the region defined by center support 30.

Bearing 30 and sealing pressurized strut 34 each include composition surface 42,46, are moved axially inwards with sealing pressurized strut 34 Multiple seals (such as two seals 50) are compressed when dynamic between them.Multiple seals 50 are by sealed spacer part 54 and tiltedly The line style anti-extrusion ring 58 (AER) for connecing is axially spaced.(for example, between sealing between the seal 50 of every side of bearing 30 In spacing body 54) axially define space 62.

When sealing pressurized strut 34 is moved axially inward (that is, towards bearing 30), the material of seal 50 compresses and by footpath Engaged to form pressure-resistant seal with the outer surface of the pipe 22,26 being associated to inwardly forcing.When being axially compressed, seal 50 Radially inwardly and outwardly extrude, with the part of the outer surface of associated pipe 22,26 and connector 10 (for example, shown construction In body 14 inner surface) between sealing is provided.

Shown seal 50 is in the commercially available of the engineering machinery underwater connector manufactured by Hydratight Co., Ltds The type used in product line.Seal 50 can be the stripping graphite (exfoliated graphite) of such as 98% purity. Seal 50 can include laminated graphite piece, and/or surround or be spirally wound on mandrel, the winding arrangement for being formed by belt It is then processed into the suitable constructions (for example, size, shape etc.) for connector 10.In other structures, seal 50 can With including any one of various other sealed filling materials.

In shown structure, seal 50 is prevented to be squeezed into the phase of pipe 22,26 and connector 10 by anti-extrusion ring 58 In gap between adjacent part, it can be closed on pipe 22,26 (that is, moved radially inwardly relative to pipe 22,26).Specifically, Adjacent loops 58 part (for example, bearing 30, sealed spacer part 54 and sealing pressurized strut 34) including inclined composition surface 66, its As leading the way with radially-inwardly guided rings 58.

When seal 50, more specifically, when the top of seal 50 is compressed, the bottom expansion of seal 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, makes Obtaining them can shrink (that is, reduce diameter) or expand (that is, diameter increases) without being plastically deformed.

Shown sealing pressurized strut 34 is housed in the opening of the formation of end nut 18 at least in part.Gap 74 is formed in Between the reserved portion and end nut 18 of body 14.Gap 74 allows end nut 18 to be moved inward (i.e., relative to body 14 Towards sealing pressurized strut 34 and bearing 30), to reduce the size in gap 74.For the ease of the inside motion, end nut 18 is wrapped Include multiple drive holes 78 and the threaded portion coordinated with the complementary threads region of body 14.Shown end nut 18 can pass through In a controlled manner rotate or rotary end nut 18 and be moved axially inward.

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

Holding ring 90 shown in each has the cross section of general triangular, and the cross section has inner radial surface 94, inclines Skewed surface 98 and the surface 102 extended transverse to longitudinal axis, 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, projection etc.) Holding capability.Holding ring 90 also includes helical cuts or angular cut 106 so that they can shrink (that is, reduce diameter) or swollen Swollen (that is, increasing diameter).In certain embodiments, holding ring 90 can expand and shrink without being plastically deformed.Interior table Face 102 can also be coated with dry lubricant, and friction is contacted to help to reduce in 90 contraction or expansion of holding ring.

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

On Fig. 8, connector 10 also includes at least one thread pressure test port 110.In order to confirm connector 10 Correct to install, the space 62 between each seal 50 of each end of connector 10 can be by pressure test port 110 enter and are pressurized to desired hydraulic pressure.Sealed spacer part 54 can include hole (see, for example, Figure 18), to allow The volume that fluid is led between sealed spacer part 54 and pipe 22,26 from space 62, more completely to fill between seal 50 Gap.Which ensure that seal 50 is pressurized when seal 50 is contacted with pipe 22,26.Hydraulic pressure keeps reasonable time length, To confirm the sealing integrity and holding capability of the entirety of connector 10.

In Fig. 1, connector 10 is shown at the state assembled with pipeline P.In order to assemble, the end of pipe 22,26 is slided Move in the hole 28 of connector 10 (Figure 10).When in pipe 22,26 patchholes 28, gap 38,74 separates in their maximum Distance (Fig. 5), the part (for example, holding ring 90, anti-extrusion ring 58 etc.) of connector 10 is not all guided radially-inwardly (i.e., In access aperture 28) and hole 28 open completely to accommodate pipe 22,26, without damage pipe 22,26 or connector 10.Then, even Connect device 10 to be started by hand-held outside activation system, be clamped on pipe with by inner clamps held in ring 90.

Fig. 9 shows the exemplary external system 126 for starting connector 10.Outside activation system 126 includes moment of torsion Spanner 130, reaction sleeve 134 and separate type drive insert 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 drives insert 138 including being used to engage the drive of each end nut 18 Multiple protrudent pins 150 in dynamic hole 78.

Figure 19 A-19C show the alternative structure of holding ring 190.Holding ring 190 is similar to the holding ring shown in Fig. 1-8 90.The reference number that common part is used adds 100 for the same reference numerals used with reference to holding ring 90.Retouched except following Outside the difference stated, the description of above-mentioned part applies in general to holding ring 190.

As shown in Figure 19 A-19C, each holding ring 190 is usually single-piece, and with by the He of inner radial surface 194 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 individual adjoining.In shown structure, inclined surface 198 has approximately equalised length.Folder The inner radial surface 194 of held in ring 190 can form special-shaped (that is, being formed with slit, groove, projection 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 The inner surface 102 of 190 holding rings 90 for not including Fig. 1-8.

Holding ring 190 also has a pair ends 208 spaced apart, and it limits angled cutting gap 206 so that clamping Ring 190 has the general " C-shape " as shown in Figure 19 A-19B, to allow holding ring 190 to shrink (that is, reduce diameter) or expansion (that is, increasing diameter).In certain embodiments, holding ring 190 can expand and shrink without being plastically deformed.As schemed Shown in 19B, shown end 208 is the flat surfaces between inside radius and outer radius, is which defined along parallel to clamping A pair of planar A that the intersection axis B that the central axis C of ring 190 extends intersects.

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

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

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 Go out) in, the angle, θ for the holding ring of various diameters can approximately 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).At 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 reduction of holding ring 190 is engaged with pipe 22,26.Institute In the embodiment shown, when holding ring 190 is completely booted, the diameter of holding ring 190 reduces so that gap 206 narrows (example Such as, it is 2mm to width).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 reducing, so as 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 when holding ring 190 is fully compressed, end 208 is docking together with flushing.Or, 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 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, so as to form the gap 206 in the beveling gap 106 similar to the holding ring 90 shown in Fig. 1 to Fig. 8.In further embodiment In, plane A can be with parallel to each other.

Figure 20-26 shows connector 10, and it uses the folder shown in the alternate figures 1-8 of holding ring 190 shown in Figure 19 A-19C Held in ring 90.In addition to holding ring 190, other parts and the phase shown in Fig. 1-12 of the connector 10 shown in Figure 20-26 Together, therefore, the description of the part of identical numbering is same as described above.

In order to radially inwardly guide holding ring 190, inclined composition surface 82,86 is with the side similar to composition surface 66 Formula is used as to lead the way.When mobile (that is, towards bearing 30) axially inwards when each end nut 18, the engagement folder of composition surface 82,86 The inclined surface 198 of held in ring 190 is with compression ring 190.As described above, ring 190 radially-inwardly stress engaging and conformal associated Pipe 22,26 outer surface, to keep connector 10 to be engaged with pipe 22,26.

The one end (that is, for the end of pipe 22) for engaging connector 10 is described for the holding ring shown in Fig. 1-8 90 construction and the installation process for the construction with the holding ring 190 shown in Figure 19-Figure 26.It should be appreciated that shown Installation process is carried out from the two ends of connector 10 in essentially the same way.Additionally, some embodiments can be included in by even Slidable center support in the cavity of the restriction of device 10 is connect, and the two ends of connector 10 can start simultaneously, with the centre of equilibrium The motion of bearing and graphite seal.

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

The reaction sleeve 134 of the advance attachment of torque wrench 130 and assembling is placed on pipe 22 and slides into separate type Drive on insert 138.The groove 154 being formed in reaction sleeve 134 is aligned with outer body drive hole 40.With reference to Figure 11, one Drive dowel 144 to pass through " sidepiece " groove 154 and hole 40 to metal (for example, steel), and leave " top " and " bottom " groove 154 and drive Dynamic hole 40 is used to observe.

The displacement of the necessary or required sealing pressurized strut 34 of minimum Sealing Stress that the application needed for being calculated as reaching needs Afterwards, user's operated torque wrench 130 is so that end nut 18 inwardly rotates relative to body 14.User observes " top " Or " bottom " groove 154 and drive hole 40 seal the displacement of pressurized strut 34 to measure, because which reducing gap 74 (Figure 11).When When gap 74 is desired size, the clamping pipe 22 of holding ring 90,190, and seal 50 is between the part of pipe 22 and connector 10 Form sealing.

Now, torque wrench 130 operation stop, and remove remaining installation equipment (that is, reaction sleeve 134, point Insert 138 etc. is driven from formula).In protection cap (not shown) insertion outer body drive hole 40, to prevent unwanted material, dirt Dye thing etc. enters.In order to confirm connector 10 correctly install, cut-in pressure test port 110 with allow by pipeline P put into The external pressure test for seal verification is carried out before use.

In installation process, started by each end nut 18 relative with associated sealing pressurized strut 34 first (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 is then also moved axially inward (that is, towards bearing 30), so as to seal 50 radially be pressed It is reduced in pipe surface.When the resistance is run into, holding ring 90,190 engagement angled surfaces 82,86 (Fig. 5) and be forced to radially Inwardly contacted with the pipe 22,26 (Fig. 7-8 and 25-26) being associated.

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

In certain embodiments, by simply replacing seal 50 and reusing holding ring 90,190, connector 10 Can be removed from an application (for example, first pipeline P), and be reinstalled as quickly as possible or be installed to another application (for example, another Individual pipeline (not shown)).The process for removing connector 10 is substantially opposite with installation process.

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

Figure 13-18 shows the clamping lock pipe jointer 210 of alternate embodiment of the invention.The class of connector 210 It is similar to above description and the connector 10 shown in Fig. 1-12.On Figure 13, shown connector 210 is 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, the pipeline P that connector 210 can be used in 1 inch to 4 inch ranges On ground using and with about 150 grades of rated pressures of (i.e. 31 bars).

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

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

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

Bearing 230 and seal sleeve 234 each include composition surface 246,250, with when sleeve pipe 234 is moved axially inward Multiple seals (such as two seals 254) are compressed therebetween.Seal 254 is by sealed spacer part 258 and the line style of mitered Anti-extrusion ring 262 (AER) is axially spaced.On every side of bearing 230, (for example, in sealed spacer between seal 254 In part 258) it has been axially formed space 260.

When sleeve 234 is moved axially inward (that is, towards bearing 230), the material of seal 254 compresses and is forced radially Inwardly to engage the outer surface of associated pipe 222,226, to form pressure-resistant seal.When being axially compressed, the footpath of seal 254 To inwardly or outwardly extruding, with the part of the outer surface of associated pipe 222,226 and connector 210 (for example, shown construction In seal sleeve 234 inner surface) between sealing is provided.

As described above, shown seal 254 is connected under water in the engineering machinery manufactured by Hydratight Co., Ltds The type used in the commercially available prod line for connecing device.Seal 254 can be the stone formed by the stripping graphite of such as 98% purity Black seal.Seal 50 can include laminated graphite piece, and/or surround or be spirally wound on mandrel by belt, be formed The winding arrangement suitable constructions (for example, size, shape etc.) that are then processed into for connector 10.In other structures, Seal 254 can include any one of various other sealed filling materials.

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

When seal 254, more specifically, when the top of seal 254 is compressed, the bottom expansion of seal 254.This compels Ring 262 is set further to be engaged with radially inwardly guided rings 262 with inclined surface 266.Ring 262 includes helical cuts or angular cut 270 so that they can shrink (that is, reduce diameter) or expansion (that is, diameter increases) is without being plastically deformed.

Seal sleeve 234 is housed in the opening formed by gripper sleeve 218 at least in part.Seal sleeve 234 is also wrapped Include the outside 274 extended radially outwardly from the body of seal sleeve 234.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 be moved inward (that is, towards seal sleeve 234 relative to body 214 With bearing 230), to reduce the size in gap 278.For the ease of this inside motion, gripper sleeve 218 can include and body The threaded portion that 214 complementary threads region coordinates.Shown 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 include inclined composition surface 282,286 respectively.When the axle of gripper sleeve 218 During to moving inward, composition surface 282,286 compresses multiple holding rings (for example, four clampings in shown structure therebetween Ring 290), it is therein at least some to be at least partially situated in the opening that limits of gripper sleeve 218 by being associated.

In shown construction, holding ring 290 is by antifriction packing ring or disk 294 and clamping ring spacer 298 between axial direction Separate, to prevent the interaction unfavorable when being contacted 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 further to reduce contact friction. In addition to inclined composition surface 282,286, clamping ring spacer 298 also includes inclined surface 302, and inclined surface is used as to draw Road is radially-inwardly guiding holding ring 290.

It should be appreciated that in the alternative constructions of the 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 the holding ring 190 shown in Figure 19 A-19C.Clamped when using When ring 190 is rather than holding ring 290 and frictional disk 294, retouching for the operation of pipe jointer 210 is locked in the clamping on Figure 13-18 State should be understood to it is substantially equivalent.

Holding ring 290 shown in each has the cross section of general triangular, and it has and inclined surface 282,286,302 Engage 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 of the engagement of antifriction disk 294.Holding ring 290 includes spirality or angular cut 310 so that when they by radially-inwardly or Outwards during guiding, they can shrink respectively (that is, reduce diameter) or expansion (that is, increasing diameter) is without being plastically deformed.

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

In order to radially-inwardly guide holding ring 290, inclined composition surface 282,286,302 to be used as to lead the way.Work as retaining sleeve When cylinder 218 is mobile (that is, towards bearing 230) axially inwards, composition surface 282,286,302 engages the nauropemeter of holding ring 290 Face 306 is with compression ring 290.Ring 290 radially-inwardly stress with engage and conformal associated pipe 222,226 outer surface, with protect Connector 210 is held to be engaged with pipe 222,226.

On Figure 13 and 18, connector 210 also includes at least one thread pressure test port 314.In order to confirm connection Device 210 is correctly installed, and the space 260 between each seal 254 of each end of connector 210 can be by pressure Power test port 314 enters and is pressurized to desired hydraulic pressure.Hydraulic pressure keeps reasonable time length, to confirm connection The sealing integrity and holding capability of the entirety of device 210.

In fig. 13, connector 210 is shown at the state assembled with pipeline P.In order to assemble, the end of pipe 222,226 Portion is slided into the hole 228 of connector 210 (Figure 14).When in pipe 222,226 patchholes 228, gap 242,278 is in them Maximum separation (Figure 15), the part (for example, holding ring 290, anti-extrusion ring 262 etc.) of connector 210 is not all by footpath To inwardly guiding (that is, in access aperture 228) and hole 228 open completely to accommodate pipe 222,226, without damage pipe 222, 226 or connector 210.

Then, connector 210 is started by hand-held outside activation system, is clamped on pipe with by inner clamps held in ring 290. Hand-held outside activation system for starting connector 210 can be similar to above-mentioned activation system 126.Using single center Bearing 230, each end of connector 210 is simultaneously activated to balance the relative motion of the part of opposite end.

In installation process, by promote or rotate using thread contact make gripper sleeve 218 towards bearing 230 axially to Interior movement so that gripper sleeve 218 runs into the resistance of seal sleeve 234, thus first start holding ring 290 (that is, by radially to It is interior to guide to engage the outer surface of associated pipe 222,226).It is moved axially inward by making gripper sleeve 218, seal sleeve 234 is also mobile (that is, towards bearing 230) axially inwards, so as to by the radial compression of seal 254 to pipe surface.Running into this During resistance, the engagement angled surface 282,286,302 of holding ring 290 and it is forced radially-inwardly to be connect with the pipe 222,226 being associated Touch (Figure 16).

Gripper sleeve 218 continues inwardly motion, so as to overcome the resistance of sealing pressurized strut 234.Seal sleeve 234 is then Continue to move inward, continue compressive seal 254, so as to form more dense volume to realize pressure-resistant seal.Further axle To motion (for example, by rotate) cause anti-extrusion ring 262 by the effect of the flowing property when compressed of seal 254 with Mode similar to holding ring 290 is closed on the outer surface of associated pipe 222,226 (Figure 17).Gripper sleeve 218 after Continuous axially inward movement increased holding ring 290 and radially contact 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 When tightly with moment of torsion (if, being moved inward by the thread contact with body 214) for reaching predeterminated level, gripper sleeve 218 Axially inward movement just stop.In order to confirm that connector 210 is correctly installed, cut-in pressure test port 314 is allowing The external pressure test for seal verification is carried out before pipeline is come into operation.

By simply replacing seal 254 and reusing holding ring 290, can be from an application (for example, the first pipe Road P) remove connector 210 and reinstalled or be installed in Another Application (for example, another pipeline (not shown)).Move Except the process of connector 210 is substantially opposite with installation process.

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

In some installation operations, when by rotating first end nut startup first seal and the first holding ring simultaneously To start during first end, it is upper and pull pipe until that seal is compressed to is predetermined that the first holding ring is closed into associated first pipe Distance or moment of torsion.When second pipe dock with the first pipe when, when by rotate the second end nut simultaneously startup second seal with Second holding ring is so as to when starting the second end in the same way, the second holding ring is closed on the second pipe and attempts pulling second Pipe, but cannot be pulled due to the adjoining with the first pipe and opposite resistance.

The moment of torsion for overcoming the friction between the second holding ring and the second pipe that second seal is compressed with mobile be it is excessive, And the moment of torsion needed for substantially exceeding first end.Tube connector generally can not be in opposite end with different moment of torsion Value Operations.It is this Situation can be alleviated by making pipe not abut before the second end is started, but this relative positioning of pipe cannot be guaranteed.

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

End nut 418 forms opening 704 to house each pin 700 (for one in shown construction).In other structures Make in (not shown), end nut 418 can form multiple openings 704, many in end nut to be supported on 418 to allow The pin 700 of individual different circumferential positions 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 in the gap 606 for optionally extend into holding ring 590 or moves away gap 606.Institute In the structure shown, when pin 700 is not needed in gap 606, pin 700 is removed from end nut 418.

Pin 700 has (referring to Figure 31) head 708, and head can be (not shown with instrument；For example, screwdriver) engage with relative Adjusted in end nut 418.The axially inward movement of the banking pin 700 of shoulder 712 on pin 700 in end nut 418.Pin 700 have the composition surface 716 for being engaged with holding ring 590.In shown structure, an only part (example of pin 700 Such as, between shoulder 712 and head 708) screw thread is provided with, and composition surface 716 is relative smooth.In shown structure In (referring also to Figure 19), the end 608 of holding ring 590 is generally flat and is engaged with composition 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 (for example bending) part 720, the profiled portion 720 was engaged before holding ring 590 starts and clamps pipe with the composition surface 716 of pin 700.Each end 608 also include when pin 700 is removed pieceable contact portion 724, with limit holding ring 590 further diameter reduce/ Radial compression, so as 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 engage and contact portion 724 keeps not engaging with pin 700.

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

Latch structure can apply to beveling holding ring (holding ring 90 as escribed above).In such structure (not shown) In, pin (such as pin 700) is positioned to limit the radial motion of beveling holding ring with the angular cut for clamping pipe P. holding rings 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 in the outside of outer body and does not enter outer body (while startup face of adjacent end nut), can be inserted radially into And pin is removed, so as to similar structures are applied into C clamp held in ring 590.

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

Due to the frictional force of the frictional force less than steel-steel of graphite-steel, pressurized strut 434 rotates, so that it is guaranteed that pin 700 without Make drive pin.As the end 608 of holding ring 590, pin 700 only exists in compressive state.Because pin 700 is not subject to moment of torsion, end Portion's nut 418 is unlikely damaged, such that it is able to remain elongated design.

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

As described above, by providing for simple replacement of seal 450 and reusing holding ring 490, can be from an application (example Such as, the first pipeline P) remove connector 410 and reinstalled or be installed to another application (for example, another pipeline is (not Show)) on.The process for removing connector 410 is substantially opposite with installation process.

The part 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, for example steel, stainless steel, carbon steel etc..

Although describing the present invention in detail by reference to some preferred embodiments, as described above of the invention one Exist in the scope and spirit of individual or multiple independent aspects and change and modifications.

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 connector includes：

Outer body, the outer body is formed with cavity；

First holding ring, first holding ring is supported in the cavity, first holding ring formed the first angular cut with Allow first holding ring to reduce diameter to be engaged with one of them pipe；

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

End nut, the end nut forms the nut bore for housing first holding ring and the second holding ring, nut engagement Surface extend in the nut bore and can with the described first clamping engagement of loops, the end nut be configured to relative to The outer body is moved radially inwardly to compress and first holding ring is engaged with described one of them pipe.

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

3. connector as claimed in claim 2, wherein the outer body defines an axis, wherein first holding ring has Ring engaging surface, ring engaging surface extension at an angle relative to the axis can simultaneously connect with the nut composition surface Close, first holding ring has transverse to the axially extending inner surface of the axis, and the inner surface is in face of the described second folder Held in ring.

4. connector as claimed in claim 1, wherein the outer body is provided with the radial surface for extending into the cavity, its Described in connector include being supported in the cavity and positioned at the seal between the radial surface and the end nut, The seal can be engaged between a part of the connector and described one of them pipe.

5. connector as claimed in claim 4, wherein the seal can be engaged in the outer body and it is described wherein it Between one pipe.

6. connector as claimed in claim 4, also including the anti-extrusion ring of neighbouring seal positioning.

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

8. connector as claimed in claim 4, wherein the seal includes graphite.

9. connector as claimed in claim 4, also including the sealing pressurized strut being supported in the cavity, the end nut Be moved axially inward cause it is described sealing pressurized strut be moved axially inward to compress the seal.

10. connector as claimed in claim 9, wherein second holding ring has ring engaging surface, wherein the sealing Pressurized strut has pressurized strut composition surface, and the pressurized strut composition surface can connect with the ring engaging surface of second holding ring Close.

11. connectors as claimed in claim 9, wherein the sealing pressurized strut is formed with start bore, the seal is received Hold in the start bore.

12. connectors as claimed in claim 4, wherein the seal is first seal, wherein the connector is also wrapped The second seal in the cavity is included, the second seal is located between the radial surface and the end nut And be spaced apart with the first seal, the second seal can be engaged in the connector a part and it is described wherein One of between pipe.

13. connectors as claimed in claim 12, also including the space between the first seal and second seal Port in fluid communication, the space is pressurizeed by the port.

14. connectors as claimed in claim 1, wherein the end nut is threadedly engaged with the outer body, the end The rotation of nut causes the end nut to be moved axially inward.

15. connectors as claimed in claim 1, also including the disk between first holding ring and the second holding ring, The disk is configured to reduce the friction between first holding ring and the second holding ring.

A kind of 16. tube connectors, for the pipe in connecting pipe, the connector includes：

Outer body, the outer body is formed with cavity and is provided with the radial surface extended into the cavity；

Holding ring, the holding ring is supported in the cavity, and the holding ring is formed with angular cut to allow the holding ring Reduce diameter to be engaged with one of them pipe；

End nut, the end nut forms the nut bore for housing the holding ring, and nut composition surface extends to the spiral shell In female hole and can be configured to radially-inwardly be moved relative to the outer body with the clamping engagement of loops, the end nut Move to compress the holding ring；

Seal, the seal is located in the cavity and is located between the radial surface and the end nut, described Seal can be engaged between a part of the connector and described one of them pipe；And

Sealing pressurized strut, the sealing pressurized strut is supported in the cavity, and the sealing pressurized strut extends at least partly into institute State in nut bore, it is described to compress that being moved axially inward of the end nut causes the sealing pressurized strut to be moved axially inward Seal.

17. tube connectors as claimed in claim 16, wherein the outer body is provided with second extended into the cavity Radial surface, wherein the tube connector also includes：

Second holding ring, second holding ring is supported in the cavity, and second holding ring forms angular cut to allow Second holding ring reduces diameter and is engaged with wherein another pipe；

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

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

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

18. tube connectors as claimed in claim 17, also include：

3rd holding ring, the neighbouring holding ring mentioned first of the 3rd holding ring is simultaneously housed in the spiral shell mentioned first In female hole；And

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

19. tube connectors as claimed in claim 16, wherein the holding ring has triangular cross section.

20. tube connectors as claimed in claim 19, wherein the outer body defines an axis, wherein the holding ring has Ring engaging surface, ring engaging surface extension at an angle relative to the axis can simultaneously connect with the nut composition surface Close, the holding ring has transverse to the axially extending inner surface of the axis.

21. tube connectors as claimed in claim 20, also including the second holding ring, second holding ring is neighbouring to be mentioned first The holding ring and be contained in the holding ring mentioned first, the inner surface faces second holding ring.

22. tube connectors as claimed in claim 21, also including between first holding ring and the second holding ring Disk, the disk is configured to reduce the friction between first holding ring and the second holding ring.

23. tube connectors as claimed in claim 16, also including in the cavity and adjacent to seal positioning Anti-extrusion ring, the anti-extrusion is equipped with angular cut and is connect with described one of them pipe with allowing the anti-extrusion ring to reduce diameter Close.

24. tube connectors as claimed in claim 16, wherein the first seal includes graphite.

25. tube connectors as claimed in claim 16, also including the second seal in the cavity, described second is close Sealing is located at and is spaced apart between the radial surface and the end nut and with the seal mentioned first, and described second Seal can be engaged between a part of the tube connector and described one of them pipe, and the sealing pressurized strut is described End nut is moved axially inward compresses the second seal between the sealing pressurized strut and the radial surface.

26. tube connectors as claimed in claim 25, also including the sky between the first seal and second seal Gap port in fluid communication, the space is pressurizeed by the port.

27. tube connectors as claimed in claim 16, 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 diameter.

A kind of 28. methods of at least pipe being assembled to tube connector in pipeline, the connector includes being provided with the outer of cavity Body, the first holding ring for being supported in the cavity and being provided with angular cut, the second holding ring of neighbouring first holding ring, And the end nut of nut bore is provided with, the nut bore houses first holding ring and the second holding ring, nut table of joint Face extends into the nut bore and can include with the described first clamping engagement of loops, methods described：

First pipe is inserted into the connector；And

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

A kind of 29. methods of at least pipe being assembled to tube connector in pipeline, the connector includes being provided with cavity and setting Have the outer body for extending into the radial surface in the cavity, the holding ring for being supported in the cavity and being provided with angular cut, The end nut of nut bore, the seal in the cavity and the sealing pressurized strut being supported in the cavity are provided with, The nut bore houses the holding ring, and nut composition surface is extended into the nut bore and can connect with the holding ring Close, the seal is located between the radial surface and the end nut, the sealing pressurized strut is extended at least partly into Enter in the nut bore, methods described includes：

First pipe is inserted into the connector；

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

The sealing pressurized strut is set to be moved axially inwards relative to the outer body by being moved axially inward for the end nut It is dynamic to compress the seal between the connector and first pipe.

A kind of 30. tube connectors, for the pipe in connecting pipe, the connector includes：

Outer body, the outer body is formed with cavity；

Holding ring, the holding ring is supported in the cavity, and the holding ring is formed with gap to allow the holding ring to subtract Minor diameter is engaged with one of them pipe；And

End nut, the end nut forms the nut bore for housing the holding ring, and nut composition surface extends to the spiral shell In female hole and can be configured to radially-inwardly be moved relative to the outer body with the clamping engagement of loops, the end nut Move to compress and make the holding ring to be engaged with described one of them pipe.

31. connectors as claimed in claim 30, wherein the holding ring has triangular cross section.

32. connectors as claimed in claim 31, wherein the outer body defines an axis, wherein the holding ring has the One ring engaging surface, the first ring engaging surface extension at an angle relative to the axis can simultaneously be engaged with the nut Surface engages.

33. connectors as claimed in claim 30, wherein the outer body is provided with the radial surface for extending into the cavity, Wherein described connector also includes being supported in the cavity and being located at close between the radial surface and the end nut Sealing, the seal can be engaged between a part of the connector and described one of them pipe.

34. connectors as claimed in claim 33, wherein the seal can be engaged in the outer body and it is described wherein One of between pipe.

35. connectors as claimed in claim 33, also including the anti-extrusion ring of neighbouring seal positioning.

36. connectors as claimed in claim 35, wherein the anti-extrusion is equipped with angular cut to allow the anti-extrusion ring Reduce diameter to be engaged with described one of them pipe.

37. connectors as claimed in claim 33, wherein the seal includes graphite.

38. connectors as claimed in claim 33, also including the sealing pressurized strut being supported 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 seal.

39. connectors as claimed in claim 38, wherein the holding ring has relative to axis extension at an angle The second ring engaging surface, wherein it is described sealing pressurized strut there is pressurized strut composition surface, the pressurized strut composition surface can Engaged with second ring engaging surface.

40. connectors as claimed in claim 38, wherein the sealing pressurized strut is formed with start bore, the seal is received Hold in the start bore.

41. connectors as claimed in claim 33, wherein the seal is first seal, wherein the connector is also wrapped The second seal in the cavity is included, the second seal is located between the radial surface and the end nut And be spaced apart with the first seal, the second seal can be engaged in the connector a part and it is described wherein One of between pipe.

42. connectors as claimed in claim 41, also including the space between the first seal and second seal Port in fluid communication, the space is pressurizeed by the port.

43. connectors as claimed in claim 30, wherein the end nut is threadedly engaged with the outer body, the end The rotation of nut causes the end nut to be moved axially inward.

44. connectors as claimed in claim 30, the also pin including being movably positioned in the gap.

45. connectors as claimed in claim 44, wherein the holding ring has the gap for being at least a partially formed the gap Surface, wherein in the moving process of the end nut, the clearance surface can close to limit the folder with the pin joint The compression of held in ring.

46. connectors as claimed in claim 44, wherein the pin is supported by the end nut adjustable ground.

47. connectors as claimed in claim 46, wherein the pin is threadedly engaged with the end nut.

48. connectors as claimed in claim 44, also including the seal being supported in the cavity, the seal can It is engaged between a part of the connector and described one of them pipe, being moved axially inward for the end nut causes institute State seal to be compressed, wherein the pin is supported for after the seal is compressed, the pin removes the gap, wherein It is constructed such that the end nut relative to the outer body axially further after the end nut and holding ring Move inward and compress and the holding ring is engaged with described one of them pipe.

A kind of 49. tube connectors, for the pipe in connecting pipe, the connector includes：

Holding ring, the holding ring is supported in the cavity, and the holding ring is formed with gap to allow the holding ring to subtract Minor diameter is engaged with one of them pipe；

50. tube connectors as claimed in claim 49, wherein the outer body is provided with second extended into the cavity Radial surface, wherein the tube connector also includes：

Second holding ring, second holding ring is supported in the cavity, and second holding ring forms gap to allow The second holding ring reduction diameter is stated to be engaged with wherein another pipe；

51. tube connectors as claimed in claim 49, wherein the holding ring has triangular cross section.

52. tube connectors as claimed in claim 51, wherein the outer body defines an axis, wherein the holding ring has Ring engaging surface, ring engaging surface extension at an angle relative to the axis can simultaneously connect with the nut composition surface Close.

53. tube connectors as claimed in claim 49, also including in the cavity and adjacent to seal positioning Anti-extrusion ring, the anti-extrusion is equipped with angular cut and is connect with described one of them pipe with allowing the anti-extrusion ring to reduce diameter Close.

54. tube connectors as claimed in claim 49, wherein the first seal includes graphite.

55. tube connectors as claimed in claim 49, also including the second seal in the cavity, described second is close Sealing is located at and is spaced apart between the radial surface and the end nut and with the seal mentioned first, and described second Seal can be engaged between a part of the tube connector and described one of them pipe, and the sealing pressurized strut is described End nut is moved axially inward compresses the second seal between the sealing pressurized strut and the radial surface.

56. tube connectors as claimed in claim 55, also including the sky between the first seal and second seal Gap port in fluid communication, the space is pressurizeed by the port.

57. tube connectors as claimed in claim 49, 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 diameter.

58. connectors as claimed in claim 49, also including pin, the pin is movably positioned in the gap with institute State the compression that the holding ring is limited in end nut moving process.

59. connectors as claimed in claim 58, wherein the pin is supported for after the seal is compressed, the pin The gap is removed, wherein being configured so that the end nut relative to described outer after the end nut and holding ring Moving inward axially further for body is compressed and the holding ring is engaged with described one of them pipe.

A kind of 60. tube connectors, for the pipe in connecting pipe, the connector includes：

Outer body, the outer body is formed with cavity；

End nut, the end nut forms the nut bore for housing the holding ring, and nut composition surface extends to the spiral shell In female hole and can be configured to radially-inwardly be moved relative to the outer body with the clamping engagement of loops, the end nut Move to compress and make the holding ring to be engaged with described one of them pipe；And

Pin, the pin is movably positioned in the gap and limits the holding ring with the end nut moving process Compression.

A kind of 61. methods of at least pipe being assembled to tube connector in pipeline, the connector includes being provided with the outer of cavity Body, it is supported in the cavity and is provided with the holding ring in gap and is provided with the end nut of nut bore, the nut bore is received Hold the holding ring, nut composition surface extends into the nut bore and can be with the clamping engagement of loops, methods described Including：

First pipe is inserted into the connector；And

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

A kind of 62. methods of at least pipe being assembled to tube connector in pipeline, the connector includes being provided with cavity and setting Have and extend into the outer body of the radial surface in the cavity, be supported in the cavity and be provided with the holding ring in gap, set There are the end nut of nut bore, the seal in the cavity and the sealing pressurized strut being supported in the cavity, institute State nut bore and house the holding ring, nut composition surface is extended into the nut bore and can connect with the holding ring Close, the seal is located between the radial surface and the end nut, the sealing pressurized strut is extended at least partly into Enter in the nut bore, methods described includes：

First pipe is inserted into the connector；

A kind of 63. methods of at least pipe being assembled to tube connector in pipeline, the connector includes being provided with cavity and setting Have and extend into the outer body of the radial surface in the cavity, be supported in the cavity and be provided with the holding ring in gap, set The end nut for having nut bore, the pin, the seal in the cavity, the Yi Jizhi that are movably positioned in the gap The sealing pressurized strut in the cavity is supportted, the nut bore houses the holding ring, and nut composition surface extends into described Nut bore is interior and can be located between the radial surface and the end nut with the clamping engagement of loops, the seal, The sealing pressurized strut is extended at least partially into the nut bore, and methods described includes：

First pipe is inserted into the connector；

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

The sealing pressurized strut is set to be moved axially inwards relative to the outer body by being moved axially inward for the end nut It is dynamic to compress the seal between the connector and first pipe；

Afterwards, the pin is removed from the gap；And

Afterwards, the end nut is moved axially inward to compress relative to the outer body and make the holding ring with described One pipe is engaged.