CN1209519A

CN1209519A - Noval pipe connector

Info

Publication number: CN1209519A
Application number: CN 97101907
Authority: CN
Inventors: 陆秀成
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-18
Filing date: 1997-01-18
Publication date: 1999-03-03

Abstract

The present invention relates to a new type connector for pipeline, which is an improvement on the No.961229.8 patent and can substitute for existent screwed connection and flange connector. It possesses two large types for single use and matched use, in which the low-pressure and high-pressure straight-throught joints, elbow connector and T-connector are respectively formed of clamping cover, brake sleeve, sealing sleeve, sealing ring, washer and its stop screw, stopper bolt and nut, etc..

Description

New-type pipe joint

The present invention: New-type pipe joint, it is a kind of pipe joint, being widely used in the pipeline connection area in human lives, production, the traffic, is the further improvement of my patent 96122229.8 and application again, is the up-to-date development that replaces existing inipple and flanged joint.

The connecting means of existing pipe coupling, widely used have two kinds, a kind of is to link to each other with the internal thread of pipe coupling behind the sealing material that twines raw meal belt and so on the outside thread of pipe end, this connecting means, need at the pipe end threading, installation, maintenance is cumbersome, and leakage phenomenon easily takes place in the joint.Another kind is respectively to be inserted in a flange at two pipe ends, respectively be inserted in a packing ring again, and packing ring freezed outside pipe end, on the garden, then between two packing rings, put seal ring, with many bolts, nut by the attachment hole on the flange, progressively two packing rings are driven two pipelines and clamp seal ring, reach the purpose that is tightly connected, bother more when this connecting means, installation, maintenance, the joint sealing life-span is short, easily leak, worse is that consumptive material is many, and installation, maintenance is very uneconomical.

The purpose of this invention is to provide a kind of novel pipe coupling design proposal, it neither needs to connect in the pipe end machining screw, do not need again at the pipe end packing ring that freezes, clamp connection with flange, but a kind of simple in structure, mounting or dismounting, easy to maintenance, sealing for tubing joints is good, withstand voltage better, make easier, the new design of long service life.

Recent design scheme of the present invention is: New-type pipe joint has independent the use and supporting use two big classes, and types such as straight joint, elbow connection, tee union are arranged equally.

The present invention independently uses class, during straight joint has, low pressure and two kinds of structure types of high pressure.In, the low pressure straight joint has 2 gripping sleeves, 2 brake casings, 1 Sealed casing pipe, 2 seal rings, several clamping screws or pin, bolt, nut are formed, as Fig. 1.The high pressure straight joint has 2 gripping sleeves, 2 sleeve pipes, and 2 brake casings, 4 seal rings of 1 Sealed casing pipe and packing ring thereof, 2 seal rings, several clamping screws or pin, bolt, nut are formed, as Figure 1A, Figure 1B.Its clamping is with mesolow and two kinds of structural types of high pressure, the outer garden of mesolow gripping sleeve (Fig. 4 A1) end radially have stretch take uniform, stretch and take number according to pipe diameter and working pressure size, greatly then many, little then few, stretch and take end face and diagonal rib is arranged to the outer garden the other end, stretch take axially on, passing diagonal rib has through hole, perhaps stretches to take the end face both sides and to the outer garden the other end two diagonal bars are arranged, and a bolt can pass from the centre to cause to stretch and take in the hole, the gripping sleeve endoporus cooperates with the outer garden of pipeline, one stomidium mouth has concavo-convex shoulder, and all there is tapering in inside and outside garden, the end of concavo-convex shoulder projection, and the periphery of concavo-convex shoulder projection is a garden week groove.There is size at high pressure gripping sleeve (Fig. 4 A2) Wai Yuan two ends, and big outer garden end has tapering to end face after one section of an end transition, and little outer garden end endoporus has recessed shoulder, has axial hole uniform on the jacket wall of periphery, recessed shoulder hole, and the gripping sleeve endoporus cooperates in the garden outward with pipeline.Its sleeve pipe is a pipe ring (Fig. 4 C2), and all there is tapering in the inside and outside garden of pipe ring one end, and outer garden cooperates with the Sealed casing pipe endoporus, and endoporus cooperates with the outer garden of pipeline.Its brake casing (Fig. 4 C1) is a pipe fitting, all there is tapering in the inside and outside garden of one end, there are screw or unthreaded hole uniform on the tube wall of pipe fitting middle part, the number in hole is according to pipe diameter and working pressure size, greatly then many, little then few, moving screw of preparation or pin in the hole, the outer garden of pipe fitting cooperates with the Sealed casing pipe endoporus, and endoporus cooperates with the outer garden of pipeline.Its clamping screw or pin (Fig. 4 G), with high strength and have the material of corrosion resistant performance such as stainless steel etc. is made, there is convex shoulder in the outer garden of screw one end, the jagged groove of the other end, there is convex shoulder in the outer garden of pin one end, and the other end garden week is jagged.Its Sealed casing pipe (Fig. 4 B) is pipe fitting always, and all there is chamfering in inside and outside garden, two ends, the recessed shoulder hole of outer garden and gripping sleeve or garden week groove fit, endoporus cooperates in the garden outward with sleeve pipe and brake casing.Its seal ring (Fig. 4 E) is an opening garden ring, between the two ends of garden ring opening certain interval is arranged, and there is tapering in the outer garden of ring, with the gripping sleeve endoporus or with the taper fit of sleeve pipe and brake casing endoporus.Its packing ring (4F) is a thin type ring, seal ring and packing ring thereof, with high strength and have the material of corrosion resistant performance such as stainless steel etc. is made, its seal ring (Fig. 4 D1, D2, D3), D1 is that two ends are the annular ring of pure V-arrangement garden week groove, the internal diameter width is greater than the external diameter width, D2 is the annular ring that both ends of the surface have V-arrangement garden week groove, the internal diameter width equals the external diameter width, D1, the D2 end face cooperates with the concavo-convex shoulder end face of gripping sleeve or with box face and brake casing end face, outer garden cooperates with the Sealed casing pipe endoporus, endoporus cooperates with the outer garden of pipeline, D3 is rectangular soft stuffing box packing of parallelogram, and the internal diameter after two ends are combined to the garden equates that with garden outside the pipeline external diameter equates with the Sealed casing pipe endoporus.D1, D2, D3 make with the material with certain elasticity or plasticity, performances such as in different media, that this type of material also should have respectively is acidproof, alkaline-resisting, oil resistant, heatproof, corrosion resistant.Its bolt is a hex head bolt, and diameter is according to pipe diameter and working pressure size, and is greatly then big, little then little, and cooperates with axial hole that high pressure clamps on the jacket wall, or stretches the axial hole of costing with the mesolow gripping sleeve and cooperate.Its nut is the standard hex nut of thickness thickening, joins with the bolt spiral shell.

This independence is used the use of class straight joint, for in, when low pressure straight joint (Fig. 1) uses, use special tool, processing depression or hole on the certain position of two pipe ends, the number in depression or hole, according to pipe diameter and working pressure size, greatly then many, little then few, after depression or hole process, respectively 2 gripping sleeves (Fig. 4 A1) are inserted in earlier on the outer garden of two pipelines, successively respectively be inserted in 1 seal ring or insert rectangular filler again, 1 brake casing, be screwed into clamping screw or with sticking some viscosity preservative substances of pin from brake casing tube wall screw this moment, imbed from brake casing tube wall unthreaded hole and to cause in the depression or hole that two pipelines process, two braking sleeve pipes are connected as a single entity with two pipelines respectively, again Sealed casing pipe is inserted on the outer garden of two seal rings and two braking sleeve pipes, and with two gripping sleeves by disturbing, make the Sealed casing pipe two ends enter the gripping sleeve end, stretch into two clamping jacket walls or stretch in the axial bore of costing with hex head bolt at last and screw with nut, cause two gripping sleeves to middle displacement, make two braking sleeve pipes drive two pipelines to middle displacement, after two braking cannula tip contacts, two braking sleeve pipes just compress separately seal ring or filler with gripping sleeve respectively, tensioner to all the winds, thereby shut each sealing surface, reach the connection sealing purpose.For high pressure straight joint (Figure 1A, when Figure 1B) using, after with special tool two pipe ends being processed depression or hole equally, outside two pipe ends on the garden, successively respectively be inserted in 1 gripping sleeve (Fig. 4 A2), 1 sleeve pipe, 1 seal ring and packing ring, 1 seal ring or filler, 1 packing ring and seal ring, 1 brake casing, this moment is with clamping screw, be screwed into or pin imbedded from brake casing tube wall unthreaded hole from brake casing tube wall screw and cause in the depression or hole that two pipelines process, two braking sleeve pipes and two pipelines are connected as a single entity, again Sealed casing pipe is inserted on the outer garden of two seal rings and brake casing, and two gripping sleeves are drawn close to the centre, make the Sealed casing pipe two ends enter two gripping sleeve ends, stretch into two clamping jacket walls or stretch in the axial bore of costing with hex head bolt at last and screw with nut, cause two gripping sleeves to middle displacement, make two braking sleeve pipes drive two pipelines to middle displacement, after two braking cannula tip contacts, two braking sleeve pipes just compress separately seal ring or filler with two gripping sleeves respectively, promote two packing rings and seal ring, make seal ring compressed by tapering, opening takes place closed, making its endoporus follow the outer ellipse garden, garden of pipeline degree changes, thereby shut the gap between the outer garden of seal ring endoporus and pipeline, guarantee that seal ring is subjected to more efficient compression in changeless cavity volume, make seal ring press more closely knitly, reach better sealing purpose each sealing surface.

The present invention independently uses the class elbow connection that straight tube shape and two kinds of structural types of casting shape are arranged, straight tube shape elbow connection is because curved head body wherein is a turning straight tube, so straight tube shape elbow connection essence is the combination by the straight joint of 2 turnings, wherein all are the part structure in addition, and combination and use connection situation thereof are all identical with straight joint.For casting shape elbow connection two types of mesolow and high pressure are arranged also.Mesolow casting shape elbow connection (Fig. 2) has 1 curved head body, 2 gripping sleeves, and 2 brake casings, 2 seal rings or filler, several clamping screws or pin, bolt, nut are formed.Its curved head body (Fig. 4 H1) two end part Wai Yuan has size, big outer garden after, little outer garden is preceding, big outer garden one end radially has to stretch to be taken uniform garden week, stretch and take a several pipe diameter and working pressure size, greatly then many, little then few, stretch and take end face and diagonal rib is arranged to the other end, stretch take axially on, passing diagonal rib has through hole, perhaps stretch and take end face both sides garden the other end outside big two diagonal bars are arranged, 1 bolt can pass from the centre to cause to stretch and take in the hole, and little outer garden cooperates with the concavo-convex shoulder of gripping sleeve endoporus garden week groove, and the end endoporus has recessed shoulder, recessed shoulder hole cooperates with the outer garden of brake casing, its gripping sleeve, brake casing, seal ring and clamping screw or pin, bolt, the nut shape structure is all identical with corresponding in addition part in the straight joint.Squeeze casting shape elbow connection (Fig. 2 A, Fig. 2 B), wherein 1 curved head body shape and structure is identical with curved head body in the above mesolow casting shape, and all the other all part structure, combined situation are all identical with the high pressure straight joint in addition.

This independence is used the use of class elbow connection, and when using for straight tube shape elbow connection, all are identical with the corresponding situation of straight joint.When using for casting shape elbow connection, in, low-pressure die casting shape elbow connection uses the connection situation as follows: at first to two pipeline special tools, the location processes depression or hole, be taken up in order of priority again and outside two pipe ends, respectively be inserted in 1 gripping sleeve (Fig. 4 A1) on the garden, 1 seal ring or insert rectangular filler, 1 brake casing, be screwed into clamping screw or with sticking some viscosity preservative substances of pin from brake casing tube wall screw this moment, imbed from brake casing tube wall unthreaded hole and to cause in the depression or hole that two pipelines process, two braking sleeve pipes and two pipelines are connected as a single entity respectively, stretching into the curved head body end with bolt again stretches and takes hole and gripping sleeve and stretch to take in the hole and screw with nut, two gripping sleeves are drawn close to curved head body, make the concavo-convex shoulder hole of gripping sleeve enter the curved head body end, when the brake casing end with after curved head body contacts, compresses seal or filler immediately, thereby reach sealing purpose, its process, the use connection procedure of sealing principle and mesolow straight joint, principle is identical.Use the connection situation as follows for squeeze casting part elbow connection: equally two pipeline positionings to be processed depression or hole, then respectively outside two pipe ends the garden successively respectively be inserted in 1 gripping sleeve (Fig. 4 A2), 1 sleeve pipe, 1 seal ring and packing ring, 1 seal ring or insert rectangular filler, 1 packing ring and seal ring, 1 brake casing, be screwed into clamping screw or pin imbedded from brake casing tube wall unthreaded hole from brake casing tube wall screw and cause in the depression or hole that two pipelines process this moment, two braking sleeve pipes are connected as a single entity with two pipelines respectively, stretching into the curved head body end with hex head bolt again stretches and takes stretching of hole and gripping sleeve and take in the hole and screw with nut, gripping sleeve is drawn close to curved head body, make the concavo-convex shoulder hole of gripping sleeve enter the curved head body end, when the brake casing end with after curved head body contacts, compresses seal or filler immediately, promote packing ring and seal ring, shut the gap between the outer garden of seal ring endoporus and pipeline, obtain better sealing, its process, the use of principle and high pressure shape straight joint is identical.

The present invention independently uses the class tee union that straight tube shape and two kinds of structural types of casting shape are arranged, straight tube shape tee union, because three-way body wherein is 3 straight tube combinations, so straight tube shape tee union comes down to the combination of 3 straight joints on 3 directions, wherein all are part textural association and use connection situation thereof in addition, all identical with straight joint, for casting shape tee union (Fig. 3, Fig. 3 A), the part textural association in addition and the use connection situation thereof of its three end are all identical with above casting shape elbow connection.

The supporting use class of the present invention joint has mesolow and two kinds of structure types of high pressure equally.The joint of these two kinds of structure types has gripping sleeve (Fig. 7), Sealed casing pipe (Fig. 6), add above independent the use in two kinds of straight joints, the corresponding part in addition of except gripping sleeve and the Sealed casing pipe all is formed, its gripping sleeve (Fig. 7) is the garden shape cover that there is outer garden convex shoulder an intermediate portion, outside convex shoulder garden end face to little outside the garden end several diagonal ribs uniform garden week is arranged, at the garden sleeve upwards, the through hole that passes diagonal rib and convex shoulder wall is arranged, perhaps end face garden end outside this is little in garden has several diclinic muscle uniform garden weeks outside convex shoulder, centre at every diclinic muscle, allow a bolt pass convex shoulder wall through hole, the position garden end outside little in convex shoulder Wai Yuan another side near garden outside little has several diagonal bars uniform, and garden cover endoporus has recessed shoulder, recessed shoulder hole cooperates with the outer garden of Sealed casing pipe, and endoporus cooperates with the outer garden of pipeline.Its Sealed casing pipe (Fig. 6), it is the sleeve pipe that an end has flange edge, the end face of flange shape can be the plane, it can be male and fomale(M﹠F), according to supporting flange or the decision of valve port shape, certain position, garden end face garden outside little has several diagonal bars uniform outside flange edge, and the cover pipe orifice has recessed shoulder, endoporus has tapering to recessed shoulder, and recessed shoulder hole cooperates with the outer garden of brake casing.

The supporting use class of the present invention joint, when the joint with prior art connects use, can with existing straight joint flange, the elbow connection flange, the tee union flange, and valve flanges etc. connects, (see figure 5) when connecting use at middle low-pressure system, same elder generation processes depression or hole with special tool at pipe end, successively outside pipe end, be inserted in gripping sleeve again on the garden, sleeve pipe, seal ring or filler, brake casing, this moment is with clamping screw or pin, be screwed into or imbed from the brake casing pipe tap and cause in the depression or hole that pipeline processes, again Sealed casing pipe is inserted in the outer garden of the recessed shoulder hole of gripping sleeve and brake casing etc., this moment is between Sealed casing pipe flange edge end face and adapting flange end face, put into old-fashioned sealing gasket, stretch into the outer garden of convex shoulder jacket wall through hole with bolt at last, passing diagonal rib causes in the flange hole that is connected, screw with nut, gripping sleeve is drawn close to flange-interface, promote sleeve pipe, seal ring, brake casing, Sealed casing pipe, and drive piping displacement, when Sealed casing pipe begins to compress old-fashioned sealing gasket, the seal ring that is enclosed within on the outer garden of pipeline will be compressed simultaneously, in view of seal ring of the present invention compression environment of living in is superior to old-fashioned sealing gasket compression environment of living in, under same compression force, the compaction rate after two kinds of seal rings are compressed, the former will be better than the latter, therefore under close condition, sealability of the present invention will be better than prior art, when connecting use in high-pressure system, as long as increase by 2 seal rings and packing ring, can obtain better to be tightly connected.

In addition, three kinds of shape and structures of the used seal ring of the present invention should be selected for use according to concrete conditions such as pressure height.

The invention will be further described below in conjunction with drawings and Examples.

The independent class joint accompanying drawing that uses is as follows:

Fig. 1: mesolow straight joint overall schematic.

1a, 1b: pipeline.2: gripping sleeve.5: seal ring.6: brake casing.7: clamping screw or pin.8: Sealed casing pipe.9: bolt.10: nut.

Figure 1A: high pressure straight joint overall schematic.

1a, 1b: pipeline.2a, 2b: gripping sleeve.3: seal ring.4: packing ring.5: seal ring.6: brake casing.7: clamping screw or pin.8: Sealed casing pipe.9: bolt.10: nut.11a, 11b: sleeve pipe.

Figure 1B: high pressure straight joint partial schematic diagram.

1a, 1b: pipeline.2a: gripping sleeve.3: seal ring.4: packing ring.5: seal ring.6a, 6b: brake casing.7: clamping screw or pin.8: Sealed casing pipe.9: bolt.10: nut.11a: sleeve pipe.

Fig. 2: mesolow casting shape elbow connection overall schematic.

1a, 1b: pipeline.2: gripping sleeve.5: seal ring.6: brake casing.7: clamping screw or pin.8: curved head body.9: bolt.10: nut.

Fig. 2 A: squeeze casting shape elbow connection overall schematic.

1a, 1b: pipeline.2: gripping sleeve.3: seal ring.4: packing ring.5: seal ring.6: brake casing.7: clamping screw or pin.8: curved head body.9: bolt.10: nut.11: sleeve pipe.

Fig. 2 B: high pressure elbow connection partial schematic diagram.

1a: pipeline.2: gripping sleeve.3: seal ring.4: packing ring.5: seal ring.6: brake casing.7: clamping screw or pin.8: curved head body.9: bolt.10: nut.11: sleeve pipe.

Fig. 3: mesolow casting shape tee union schematic representation.

1a, 1b, 1c: pipeline.2: gripping sleeve.5: seal ring.6: brake casing.7: clamping screw or pin.8: three-way body.9: bolt.10: nut.

Fig. 3 A: squeeze casting shape tee union schematic representation.

1a, 1b, 1c: pipeline.2: gripping sleeve.3: seal ring.4: packing ring.5: seal ring.6: brake casing.7: clamping screw or pin.8: three-way body.9: bolt.10: nut.11: sleeve pipe.

It is as follows to be used class joint accompanying drawing:

Fig. 5: mesolow straight joint overall schematic.

1a, 1b: pipeline.2: gripping sleeve.5: seal ring.6: brake casing.7: clamping screw or pin.8: Sealed casing pipe.9: bolt.10: nut.11: sleeve pipe.12: flange.13: sealing gasket.

Fig. 6: Sealed casing pipe.Fig. 7: gripping sleeve.

Embodiment 1: the independent use of using the class straight joint.

High pressure straight joint (Figure 1A, when Figure 1B) using, at first use special tool at two pipeline 1a, machining hole or depression on certain position, 1b end, then at pipeline 1a, be taken up in order of priority on the 1b and respectively be inserted in 1 gripping sleeve 2,1 sleeve pipe 11,1 close ring 3,1 packing ring 4,1 seal ring 5,1 packing ring 4,1 seal ring 3,1 brake casing 6, be screwed into or imbed brake casing tube wall screw or unthreaded hole with clamping screw or pin 7 and cause in the hole or depression that two pipelines process this moment, make two the braking sleeve pipes 6 respectively with pipeline 1a, 1b is connected as a single entity, again Sealed casing pipe 8 is inserted on the outer garden of two braking sleeve pipes 6, and with two gripping sleeve 2a, 2b draws close, make Sealed casing pipe 8 two ends enter gripping sleeve 2a, in all grooves in garden on the concavo-convex shoulder of 2b, stretch into two gripping sleeve 2a with hex head bolt 9 at last, screw with nut 10 in the axial bore that 2b jacket wall or stretch is costed, cause two gripping sleeve 2a, 2b is to middle displacement, promote sleeve pipe 11, seal ring 3, packing ring 4, seal ring 5, packing ring 4, seal ring 3, brake casing 6, drive two pipelines to middle displacement by clamping screw or pin 7, when two braking sleeve pipes mutually after touch, two the braking sleeve pipes 6 just respectively with two gripping sleeve 2a, 2b compresses seal ring 5 separately, and further promote packing ring 4, seal ring 3, make seal ring 3 compressed by tapering, opening takes place closed, make its endoporus change the gap of shutting between seal ring endoporus and the outer garden of pipeline with the outer ellipse garden, garden of pipeline degree, thereby guarantee that seal ring is subjected to more efficient compression in a changeless cavity volume, make seal ring press closelyr, reach better sealing purpose sealing surface.

During mesolow straight joint (Fig. 1) use, owing to economize part in addition such as Decanning, seal ring, packing ring, so it is comparatively easy to connect use, its operating process, sealing principle is close substantially with above high pressure straight joint.

Embodiment 2: the independent use of using the class elbow connection.

When straight tube shape elbow connection uses, when using with straight joint fully with the connection situation of pipeline to be connected situation identical.

Squeeze casting shape elbow connection (Fig. 2 A, when Fig. 2 B) using, same earlier at two pipeline 1a, machining hole or depression on certain position, 1b end, then at pipeline 1a, be taken up in order of priority on the 1b and respectively be inserted in 1 gripping sleeve 2,1 sleeve pipe 11,1 seal ring 3,1 packing ring 4,1 seal ring 5,1 packing ring 4,1 seal ring 3,1 brake casing 6, be screwed into or imbed brake casing tube wall screw or unthreaded hole with clamping screw or pin 7 and cause in the hole or depression that two pipelines process this moment, make two the braking sleeve pipes 6 respectively with pipeline 1a, 1b is connected as a single entity, stretching into stretching of gripping sleeve 2 and curved head body 8 with bolt 9 again takes in the hole with nut 10 and screws, gripping sleeve 2 is drawn close to curved head body 8, make the concavo-convex shoulder hole of gripping sleeve 2 enter curved head body 8 ends, promote seal ring 3 and packing ring 4, seal ring 5, packing ring 4, seal ring 3, brake casing 6 drives two pipeline 1a by clamping screw or pin 7,1b is to curved head body 8 displacements, when brake casing end and curved head body mutually after touch, brake casing 6 just compresses with 2 pairs of seal rings 5 of gripping sleeve, and further promotes two packing rings 4 and seal ring 3, reaches good sealing purpose, its overall process, sealing principle all the connection procedure sealing principle with straight joint are identical.

Mesolow casting shape elbow connection (Fig. 2) during use, owing to economize part in addition such as Decanning, seal ring, packing ring, uses comparatively easyly so connect, and its operating process, sealing principle are close substantially with above squeeze casting shape elbow connection.

Embodiment 3: the independent use of using the class tee union.

When straight tube shape tee union uses, when using with straight joint fully with the connection situation of pipeline to be connected situation identical.

When mesolow and squeeze casting shape tee union (Fig. 3, Fig. 3 A) use, because structure and two kinds of forms thereof of three-way body three ends, and gripping sleeve, sleeve pipe, seal ring, packing ring, seal ring, brake casing, clamping screw and pin, bolt, nut etc. in addition part structure are all identical with corresponding other part structural type in the elbow connection, so it is identical to the connection use and the elbow connection use condition of pipeline.

Embodiment 4: the use of supporting use class straight joint.

When mesolow straight joint (Fig. 5) uses, same earlier to pipeline 1a, garden processing depression or hole outside the 1b end, be inserted in gripping sleeve 2 successively to pipeline 1b end Wai Yuan again, sleeve pipe 11, seal ring 5, brake casing 6, be screwed into clamping screw or pin 7 or imbed from the brake casing pipe tap and cause in the depression or hole that pipeline 1b processed this moment, brake casing 6 is connected as a single entity with pipeline 1b, again Sealed casing pipe 8 is inserted in the recessed shoulder hole and the brake casing 6 of gripping sleeve 2, seal ring 5, the outer garden of sleeve pipe 11, between the end face of the flange edge end face of Sealed casing pipe 8 and adapting flange 12, put into sealing gasket again, stretch in the convex shoulder cinclides of gripping sleeve 2 with bolt 9 at last, pass in the mounting hole that diagonal rib causes adapting flange 12, screw with nut 10, gripping sleeve 2 is drawn close to the method for connecting 12, promote sleeve pipe 11, seal ring 5, brake casing 6, drive pipeline 1b displacement by clamping screw or pin 7, promote Sealed casing pipe 8 compression seal pads 13, in compression seal pad 13, seal ring 5 also by compression, constantly screw with nut, sealing gasket 13 and seal ring 5 reach seal degree with priority, are tightly connected thereby finish to connect.

Claims

1, the present invention: New-type pipe joint is a pipe joint, and the pipeline that is used for human lives, production, traffic connects, and it is characterized in that: the independent use and supporting use two big classes arranged.The independent class of using: mesolow straight joint (Fig. 1) has gripping sleeve (Fig. 4 A1), brake casing, clamping screw or pin, Sealed casing pipe, seal ring, bolt, nut to form.(Figure 1A Figure 1B) has gripping sleeve (Fig. 4 A2), sleeve pipe, brake casing, Sealed casing pipe, seal ring, packing ring, clamping screw or pin to the high pressure straight joint, and bolt, nut are formed.Straight tube shape elbow connection has all other parts of curved head body (Fig. 4 H2) and 2 cover respective type straight joints to form.Casting shape elbow connection (Fig. 2, Fig. 2 A, Fig. 2 B) has 2 cover bolts, nut, 1 other part of other all respective type of cover of curved head body (Fig. 4 H1) and straight joint to deduct Sealed casing pipe and form.All other parts that straight tube shape tee union has three-way body (Fig. 4 S2) to add the corresponding type straight joint of 3 covers are formed.Casting shape tee union (Fig. 3 A, Fig. 3) has 3 cover bolts, nut, 1 cover, half other part of other all respective type of three-way body (Fig. 4 S1) and straight joint to deduct Sealed casing pipe and form.Supporting use class: supporting joint of mesolow (Fig. 5) and the supporting joint of high pressure, gripping sleeve (Fig. 7) is arranged, Sealed casing pipe (Fig. 6) adds independent the use in class mesolow and two kinds of straight joints of high pressure, the corresponding part in addition of except gripping sleeve and the Sealed casing pipe all is formed, can with the straight joint flange of prior art, the elbow connection flange, tee union flange, and the supporting connection of various valve flanges.

2, according to the said New-type pipe joint of claim 1, it is characterized in that: the outer garden of gripping sleeve (Fig. 4 A1) one end radially have stretch take uniform, stretch and take a several pipe diameter and working pressure size, greatly then many, little then few, stretch and take end face and diagonal rib is arranged to the outer garden the other end, stretch to take and axially pass diagonal rib through hole is arranged, perhaps stretch and take the end face both sides and 2 diagonal bars are arranged to the other end, 1 bolt can pass from the centre to cause to stretch to be taken in the hole, and the gripping sleeve endoporus cooperates with the outer garden of pipeline, and port has concavo-convex shoulder, all there is tapering in inside and outside garden, the end of concavo-convex shoulder projection, and the periphery of concavo-convex shoulder projection is a garden week groove.

3, according to the said New-type pipe joint of claim 1, it is characterized in that: there is size at gripping sleeve (Fig. 4 A2) Wai Yuan two ends, big outer garden end after one section of the other end transition outside little the garden end tapering is arranged, the gripping sleeve endoporus cooperates with the outer garden of pipeline, port has recessed shoulder, recessed shoulder hole cooperates with the outer garden of Sealed casing pipe, on the peripheral jacket wall in recessed shoulder hole is arranged axial hole uniform garden week.

4, according to the said New-type pipe joint of claim 1, it is characterized in that: sleeve pipe (Fig. 4 C2) is shape pipe fitting always, and all there is tapering in the inside and outside garden of an end face.

5, according to the said New-type pipe joint of claim 1, it is characterized in that: brake casing (Fig. 4 C1) is that shape is managed always, all there is tapering in the inside and outside garden of one end, there are screw or unthreaded hole uniform in the middle of the pipe on the tube wall, the number in hole is according to pipe diameter and working pressure size, greatly then many, little then few, moving screw of preparation or pin in the hole.

6, according to the said New-type pipe joint of claim 1, it is characterized in that: clamping screw or Xiao Ding (Fig. 5 G), the jagged groove of screw one end, there is shoulder in the outer garden of the other end, and there is shoulder in the outer garden of pin one end, and is jagged around the outer garden of the other end.

7, according to the said New-type pipe joint of claim 1, it is characterized in that: Sealed casing pipe (Fig. 4 B) is a shape pipe fitting always, and all there is chamfering in inside and outside garden, two ends.

8, according to the said New-type pipe joint of claim 1, it is characterized in that: seal ring (Fig. 4 E) is a trip ring, and opening has certain interval between the two ends, and there is tapering in the outer garden of ring, and its packing ring is a garden ring.

9, according to claim 1 or 6 and 8 said New-type pipe joints, it is characterized in that: clamping screw or Xiao Ding and seal ring and packing ring are made with high strength corrosion resistant material.

10, according to the said New-type pipe joint of claim 1, it is characterized in that: the D1 among seal ring Fig. 4 is the annular ring that there is V-arrangement garden week groove at two ends, its internal diameter width is greater than the external diameter width, D2 is the annular ring that both ends of the surface have V-arrangement garden week groove, its internal diameter width equals the external diameter width, the outer garden of D1, D2 cooperates with the Sealed casing pipe endoporus, end face cooperates with gripping sleeve and brake casing end face, endoporus cooperates with the outer garden of pipeline, D3 is rectangular soft-filler of parallelogram, internal diameter after two ends are combined to the garden circle equates that with outer diameter tube external diameter equates with the stuffing box gland internal diameter.

11, according to the said New-type pipe joint of claim 1, it is characterized in that: curved head body has straight tube shape and casts two kinds of shapes, and straight tube shape curved head body (Fig. 4 H2) two-port is a straight tube shape.Casting shape curved head body (Fig. 4 H1) two end part Wai Yuan has size, big outer garden after, little outer garden is preceding, outer garden one end has to stretch and takes uniform garden week greatly, stretch and take end face and diagonal rib is arranged to the other end, stretch to take and axially pass diagonal rib through hole is arranged, perhaps stretch and take end face both sides garden the other end outside big two diagonal bars are arranged, 1 bolt can pass from the centre, cause to stretch and take in the hole, the concavo-convex shoulder garden week groove fit of little outer garden and gripping sleeve, endoporus has recessed shoulder, and recessed shoulder hole cooperates with the outer garden of brake casing.

12, according to the said New-type pipe joint of claim 1, it is characterized in that: three-way body (Fig. 4 S1, Fig. 4 S2) three end structures and two kinds of forms thereof are all identical with above curved head body end construction and two kinds of forms thereof.

13, according to the said New-type pipe joint of claim 1, it is characterized in that: gripping sleeve (Fig. 7) is the garden shape cover that there is outer garden convex shoulder an intermediate portion, the outer little outer garden of end face to, garden of convex shoulder end has several diagonal ribs uniform, at garden shape sleeve upwards, the through hole that passes diagonal rib and convex shoulder wall is arranged, perhaps outside convex shoulder the garden end face to this little outside the garden end, there are several diclinic muscle uniform, in the middle of many diclinics muscle, allow a bolt pass and cause convex shoulder wall through hole, the outer garden of convex shoulder opposite side has several diagonal bars uniform near little Wai Yuan position garden end outside little, and garden cover endoporus has recessed shoulder, recessed shoulder hole cooperates with the outer garden of Sealed casing pipe, and endoporus cooperates with the outer garden of pipeline.

14, according to the said New-type pipe joint of claim 1, it is characterized in that: Sealed casing pipe (Fig. 6) is the sleeve pipe that an end has flange edge, the end surface shape of flange edge can be the plane, can be male and fomale(M﹠F), according to supporting flange or the decision of valve port shape, flange edge has several diagonal bars uniform on outer certain position, end face garden outside little, garden, and the cover pipe orifice has recessed shoulder, and endoporus has tapering to recessed shoulder, recessed shoulder hole cooperates with the outer garden of brake casing, and little outer garden cooperates with the recessed shoulder of gripping sleeve hole.