CN101356395B - Fitting structure - Google Patents
Fitting structure Download PDFInfo
- Publication number
- CN101356395B CN101356395B CN2006800508239A CN200680050823A CN101356395B CN 101356395 B CN101356395 B CN 101356395B CN 2006800508239 A CN2006800508239 A CN 2006800508239A CN 200680050823 A CN200680050823 A CN 200680050823A CN 101356395 B CN101356395 B CN 101356395B
- Authority
- CN
- China
- Prior art keywords
- connecting tube
- flange member
- segmentation
- main body
- side flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
An engagement section (7a) of a holder (7) is engaged with a metal gasket (6), the gasket (6) is received in a tubular section (7b), and the tubular section (7b) is fitted in a step section (5a) of a connection pipe (1a). Then, another connection pipe (1b) is placed close to and facing the connection pipe (1a) that holds the gasket (6) through the holder (7), and a center ring (9) is installed surrounding the outer peripheries of flanges (2a, 2b). Subsequently, while a trapezoidal section having slopes (3a, 3b) as opposite sides is inserted into a groove (14), segments (10a-10c) are closed to form a ring shape. A bolt (11) penetrated through a cutout (12) of the segment (10a) is screwed into a threaded hole (13) of the segment (10c). The screwing of the bolt causes the amount of insertion of the trapezoidal section, which has the slopes (3a, 3b) as opposite sides, into the groove (14) to be increased. As a result the distance between the flanges (2a, 2b) is reduced and contact pressure of projections (4a, 4b) against both sides of the gasket (6) is increased.
Description
Technical field
The present invention relates to a kind of cooperating structure (fittingstructure) that is used for the connection of connecting tube.
Background technique
In semiconductor manufacturing facility, common industrial machine etc., comprise that the catheter configurations of connecting tube is used to transmit the cooling water or the fluids such as hot water, organic chemistry liquid of air, purified water, adjusting temperature.This catheter configurations comprises the cooperating structure that connecting tube is connected with another member, for example, and the fluid input/outlet of the shell of another connecting tube or equipment.
Traditionally, for example, as making a pair of connecting tube cooperating structure connected to one another, in a kind of structure, the end face of corresponding connecting tube is held in each other closely contact.In this case, rubber o-ring inserts between two end faces and is used to improve tightness.Each end face is formed with groove and is used to keep O type circle.Flange is respectively formed on the end face of corresponding connecting tube like this, in some cases.
Yet, this year, for example, in semiconductor manufacturing facility, even, may cause the fault of out of use invalid product even in the fluid of supply gas in the gas supply section of reaction chamber, sneak into microimpurity or little pressure surge.Therefore, being arranged on the catheter configurations of this position need be than more high-grade in the past tightness.As mentioned above, comprise that the structure of O type circle is difficult to realize very high tightness, because the nature of O type circle is a rubber, because the easier reliability in time of rubber reduces.In addition, nobody can deny that the chemical reaction of flowing gas and rubber can cause characteristic variations.
Therefore, the disclosed unexamined patent application of Japan Patent No.62756/90 proposes a kind of middle structure of end face that is used for metallic shim is clamped in connecting tube (element of cooperation), rather than O type circle.In this structure, each end face is provided with annular sealing strip (projection), thus make these Stamping Steel Ribbons respectively with the contact both sides of pad.In addition, this structure adopts attaching nut, and it comprises the female thread of the external screw thread engagement on the periphery with a connecting tube, and comprises the anastomosis part that engages with another connecting tube.By attaching nut's external screw thread being screwed into dearly in the female thread of connecting tube, the corresponding Stamping Steel Ribbon on two end faces pushes pad from both sides so that realize high-air-tightness powerfully.
In addition, can use metallic cooperating structures such as metallic connecting tubes such as stainless steel and stainless steel in some cases.As the metallic cooperating structure, used two ferrule type cooperating structures (seeing also the specification of Swagelok company) or single ferrule type cooperating structure (to see also ParkerHannifin company in disclosed " CPI of in February, 2000 in August, 2004 disclosed " (Gaugeable) Tube Fittings andAdapter Fittings "
TMTube Fittings catalog 4230revised in February 2000 ").
As shown in Figure 1, in the structure of the description of product of Swagelok company, it is two ferrule type, comprising: cooperate main body 44, have external screw thread 41 on the periphery of this cooperation main body 44 and have the insertion portion 43 that is used for metal connecting tube 42 on interior week; Nut 47, this nut 47 have the female thread 46 with external screw thread 41 engagements that cooperate main body 44; Be arranged on by front ferrule 45 in the space that limits in interior week of the end portion of interior week of the end portion that cooperates main body 44 and nut 47 and back lasso 48.The first mating face 45a of front ferrule 45 engages with the cut sides 44a of the inside that is arranged on the end portion that cooperates main body 44.The first mating face 48a of back lasso 48 engages with the cut sides 47a of the inside of the end portion that is arranged on nut 47.Then, the second mating face 48b of second mating face 45b of front ferrule 45 and back lasso 48 is engaged with each other.
Therefore, connecting tube 42 inserts in the insertion portion 43 that cooperates main bodys 44, and external screw thread 41 and female thread 46 engagements, is positioned at nut 47 on the periphery of connecting tube 42 simultaneously towards cooperating main body 44 to move.In this case, when nut 47 when cooperating main body 44 to move, front ferrule 45 is near back lassos 48, thereby makes their closely contacts each other.Then, the end portion of the second mating face 48b of back lasso 48 squeezes into and creeps in the outer surface of connecting tube 42.Like this, the end portion of back lasso 48 is held in connecting tube 42 in the outer circumferential face that creeps into connecting tube 42.
Although it is not shown, the product descritption of Parker Hannifin company also discloses a kind of cooperating structure, it comprises single lasso, the mating face that this list lasso has the mating face that engages with the cut sides of the inside that is arranged on the end portion that cooperates main body and engages with the cut sides of the inside of the end portion that is arranged on nut, wherein, the end portion on each mating face is squeezed on the periphery of connecting tube and creeps in the periphery of connecting tube.
Therefore, in above-mentioned arbitrary structure,, cooperate any rotation in main body 44 or the nut 47, thereby make female thread 46 engagements of the external screw thread 41 that cooperates main body 44 and nut 47 using when for example two instruments such as spanner are fixed another.
Summary of the invention
In the disclosed structure of the disclosed unexamined patent application of Japan Patent No.62756/90, external screw thread by a connecting tube is screwed into dearly in attaching nut's the female thread and realizes high-air-tightness, wherein during being screwed into, because frictional force, another connecting tube also rotates with the attaching nut.In this case, produce friction between the Stamping Steel Ribbon of the pipe that is rotatably connected and the pad that contacts and push with Stamping Steel Ribbon, cause metallic to float.These particles become impurity and are directed in the flowing gas.In addition, particle not only appears, and the rotation of connecting tube damage sealing surfaces, cause leaking increase.
Even do not remove particle at once assembling does not produce particle or finishes assembling when finishing after, but still particle can appear in long-term using process.Particularly, as mentioned above, when another connecting tube rotated with the attaching nut, the leading end of another connecting tube part can keep twisted state.In this case, owing to squeeze power, connecting tube can move on the direction of eliminating twisted state gradually.Alternatively, because temperature fluctuation causes the expansion of connecting tube or contraction that a pair of connecting tube fastening force secured to one another is reduced, connecting tube can move on the direction of eliminating twisted state.As a result, occur friction between Stamping Steel Ribbon and the pad, may cause metallic to float.In addition, except these particles occurring, a pair of connecting tube fastening force secured to one another is reduced, so confining force is reduced, and this causes leaking easily.
As mentioned above, structure according to the disclosed unexamined patent application of Japan Patent No.62756/90, although can realize the high-air-tightness of cooperating structure with respect to the outside, but the inside at cooperating structure can produce metallic, these particles constitute impurity, can be directed influent stream by in the fluid of cooperating structure.Particularly, when this cooperating structure was used for the gas supply section of semiconductor manufacturing facility, the particle as impurity that the friction of introducing between Stamping Steel Ribbon and metallic shim causes can cause serious problems, and this can make desirable semiconductor break down.
On the other hand, in disclosed pair of ferrule type cooperating structure of the description of product of Swagelok company, front ferrule 45 closely contact with back lasso 48, thereby by sealing in the female thread 46 that the external screw thread that cooperates main body 44 is screwed into dearly nut 47, thereby the realization high-air-tightness.Similarly, in the disclosed single ferrule type cooperating structure of the description of product of Parker Hannifin company, by the external screw thread that cooperates main body is screwed in the female thread of nut dearly, the two end portions of lasso is crept in the periphery of connecting tube powerfully, thereby realize high-air-tightness.Therefore, external screw thread need be screwed in the female thread fully, promptly needs the rotation of quantity sufficient so that make two screw threads 41,46 fastening fully, so that realize high-air-tightness.
Yet, during being screwed into,, because frictional force, being positioned at connecting tube 42 on interior all sides of nut 47 with nut 47 rotations, thereby making the leading end part of connecting tube 42 keep twisted state in some cases for afore-mentioned.In this case, just can not carry out the rotation of quantity sufficient, cause nut 47 not enough, and cause leaking the possibility height with the tightness that is connected that cooperates main body 44 so that make two screw threads 41,46 fastening fully.
When not guaranteeing binding thread 41 fully, 46 rotation quantity wishes relatively to rotate the rotation until the predetermined quantity that reaches fastening usefulness of cooperation main body 44 and nut 47, but sometimes, be not used in the sufficient room of operation tool, for example be used for the space of fastening spanner.Particularly, by the external screw thread 41 that cooperates main body 44 is screwed in the female thread 46 of nut 47, finished under the state of cooperating structure, around cooperating structure, can not obtain fully wide space, but various members comprise the part etc. of shell of conduit, the equipment of normal appearance.In addition, semiconductor manufacturing facility etc. can be provided with a plurality of catheter configurations, and wherein aforementioned cooperating structure can be included in the corresponding pipe.In this case, the operator is difficult to freely use instruments such as spanner.Particularly, in structure shown in Figure 1, need to use two spanners, that is, make cooperation main bodys 44 not rotate thereby a spanner is used for fixing cooperation main body 44, another spanner is used for swivel nut 47.In addition, preferably, guarantee big stroke for spanner during operation,, be used for effectively with fastening reliably so that apply big relatively power.In this case, unless cooperating structure around have space fully freely, otherwise the operator can a lot of difficulties of experience in the operation of using two spanners, may cause sufficient fastening force can not be provided.In addition, when finishing fastening the unclamping in fastening back, fastening again operation is difficulty especially.
An object of the present invention is to provide a kind of cooperating structure, it can prevent that connecting tube is held in twisted state, compare with the structure that adopts metallic shim connecting tube is connected with high reliability ground with high-air-tightness, and can not cause metallic occurring in inside.
An aspect of of the present present invention provides a kind of cooperating structure that is used to connect a pair of connecting tube, and each described connecting tube has flange, and described flange partly is provided with annular protrusion at a leading end, and described cooperating structure comprises:
Smooth endless metal pad, under the described flange state respect to one another of described a pair of connecting tube, described metallic shim pushes from both sides by each projection;
Retainer, described retainer has the anastomosis part that engages with at least a portion of described metallic shim, and by a maintenance in the described connecting tube;
Center ring crosses under the described metallic shim state respect to one another at the described flange of described a pair of connecting tube, and described center ring can be mounted to the periphery around described flange; With
Clamping ring, described clamping ring comprises a plurality of segmentations, it is attached pivotally each other that described a plurality of segmentation sets gradually and connect into adjacent segmentation, be used for when the segmentation at an end place that is positioned at described a plurality of segmentations and the segmentation that is positioned at the other end place are fixed to one another by clamp structure, limit annular by all described segmentations, so that the whole periphery that described metallic shim described flange respect to one another is crossed in covering and maintenance, wherein
Described each flange has the inclined-plane, and described inclined-plane has a down dip from a side direction relative with the described leading end outer Zhou Dynasty of described each flange respectively, and
Have the inclined surface corresponding respectively on the interior week of the described segmentation of each of described clamping ring with the described inclined-plane of described each flange.
Limit annular so that cover and keep crossing under the state of whole periphery of described metallic shim described flange respect to one another at described clamping ring, when described clamp structure makes the described segmentation at the described segmentation at an end place and the other end place more close each other, the described segmentation of each of described clamping ring is being moved in the radial direction inwardly, be used to make described flange more closely to keep each other, described each inclined surface is slided along described each inclined-plane of described each flange simultaneously.
According to this structure, because use metallic shim sealing rather than rubber o-ring, so the tightness height, in addition,, do not produce friction between the projection of connecting tube and the metallic shim, thereby eliminated the possibility that produces particle because the assembly process connecting tube is non-warping.
According to a further aspect in the invention, provide a kind of cooperating structure that is used to connect connecting tube, described cooperating structure comprises:
Cooperate main body, described cooperation main body integrally is provided with in its leading end part and cooperates the main body side flange member, and described cooperation main body has insertion portion on week within it, and described connecting tube is from guide the described insertion portion of distolateral insertion;
Connecting tube side flange member, described connecting tube side flange member is arranged on the periphery of described connecting tube;
Lasso, described lasso remain on the periphery of described connecting tube;
Center ring, under the leading end of the described connecting tube side flange member state relative with the leading end of described cooperation main body side flange member, described center ring can be mounted to the periphery around described flange member;
Clamping ring, described clamping ring comprises a plurality of segmentations, it is attached pivotally each other that described a plurality of segmentation sets gradually and connect into adjacent segmentation, be used for when the segmentation at an end place that is positioned at described a plurality of segmentations and the segmentation that is positioned at the other end place are fixed to one another by clamp structure, limit annular by all described segmentations, so that cover and keep having the whole periphery of the described flange member of leading end respect to one another, wherein
Described each flange member has the inclined-plane, and described inclined-plane has a down dip from a side direction relative with the described leading end outer Zhou Dynasty of described each flange, wherein
Have the inclined surface corresponding respectively on the interior week of the described segmentation of each of described clamping ring with the described inclined-plane of described each flange member, and wherein
Described lasso stretches to the interior week of the leading end part of described cooperation main body side flange member from the interior distribution of the leading end part of described connecting tube side flange member.
In this case, another connecting tube can insert from the side relative with described cooperation main body side flange member of described cooperation main body, and the inner space of described connecting tube by described cooperation main body is connected to described another connecting tube.
According to a further aspect in the invention, provide a kind of cooperating structure that is used to connect a pair of connecting tube, described cooperating structure comprises:
Cooperate main body, described cooperation main body integrally is provided with in two end portions and cooperates the main body side flange member, and described cooperation main body has a pair of insertion portion on interior week, is used for inserting from both sides described a pair of connecting tube;
A pair of connecting tube side flange member, described a pair of connecting tube side flange member is separately positioned on the periphery of described a pair of connecting tube;
A pair of lasso, described a pair of lasso remains on respectively on the periphery of described connecting tube;
A pair of center ring, described a pair of center ring is separately positioned on the two end portions of described cooperation main body, and under the leading end of described each the connecting tube side flange member state relative with the leading end of described each cooperation main body side flange member, described center ring can be mounted to the periphery around described flange member; With
A pair of clamping ring, each described clamping ring comprises a plurality of segmentations, it is attached pivotally each other that described a plurality of segmentation sets gradually and connect into adjacent segmentation, be used for when the segmentation at an end place that is positioned at described a plurality of segmentations and the segmentation that is positioned at the other end place are fixed to one another by clamp structure, limit annular by all described segmentations, so that cover and keep having the whole periphery of the described flange member of leading end respect to one another, wherein
Described each flange member has the inclined-plane, and described inclined-plane has a down dip from a side direction relative with the described leading end outer Zhou Dynasty of described each flange member respectively, wherein
Have the inclined surface corresponding respectively on the interior week of the described segmentation of each of described clamping ring, wherein with the described inclined-plane of described each flange member
Described lasso stretches to interior week of the leading end part of described cooperation main body side flange member from the interior distribution of the leading end of described connecting tube side flange member part, and wherein
Respectively in the two end portions of the described cooperation main body structure that connects, be used for being connected described connecting tube and described cooperation main body with described connecting tube side flange member by described cooperation main body side flange member, under the leading end state respect to one another of described cooperation main body side flange member and described connecting tube side flange member, described cooperation main body side flange member and described connecting tube side flange member keep by described center ring and described clamping ring, thereby make described a pair of connecting tube be connected by the inner space of described cooperation main body.
In these structures and since nut not with cooperates body engages cooperate main body to be used for hermetic seal so that connecting tube is fixed to, so can not twist at the assembly process connecting tube.Therefore, when temperature and humidity changed and fluctuate, this connection can not relax.As a result, can realize that high-air-tightness connects.
This lasso can comprise front ferrule and back lasso, described front ferrule has first mating face that the cut sides on the interior week that is used for described cooperation main body side flange member engages and has second mating face that is positioned on the side relative with described first mating face, described back lasso has first mating face that the cut sides on the interior week that is used for described connecting tube side flange member engages and has second mating face that is positioned on the side relative with described first mating face, can combine closely with described second mating face of described front ferrule in second mating face of described back lasso.Then, when lasso is watched after described, described second mating face of described second mating face of described front ferrule and described back lasso with respect to the formed angle of the longitudinal direction of described connecting tube greater than the described cut sides on the interior week of described first mating face of described front ferrule and described cooperation main body side flange member with respect to the formed angle of the longitudinal direction of described connecting tube, and when lasso was watched after described, described first mating face of described back lasso and the described cut sides on the interior week of described connecting tube side flange member can form the obtuse angle with respect to the longitudinal direction of described connecting tube.
Limit annular so that cover and keep under the state of whole periphery of described each leading end part of described flange member respect to one another at described clamping ring, when described clamp structure makes the described segmentation at the described segmentation at an end place and the other end place more close each other, the described segmentation of each of described clamping ring is being moved in the radial direction inwardly, described each inclined surface is slided along described each inclined-plane of described each flange member simultaneously, more close each other with the leading end that causes described flange member, thus the tightness of sealing improved by described lasso.
Described clamp structure can be a bolt, be used for the described segmentation of receiving the other end place is twisted in the described segmentation at an end place, and described clamp structure can make aforementioned two segmentations more close each other when described bolt deeper is screwed into.In this case, the segmentation that being used in the head part of described bolt and the described segmentation is connected the described head part of described bolt has corresponding contact segment, and corresponding contact segment forms sphere.
In addition, described clamp structure can be an eyebolt, and described eyebolt comprises: stopping part, described stopping part are attached in the segmentation in the described segmentation at the described segmentation at an end place and the other end place; Helical thread portion, described helical thread portion extends from described stopping part; And nut, described nut engages with the engagement of described helical thread portion and with another segmentation, wherein when described helical thread portion deeper is screwed into described nut, with described another segmentation of described nut engages can more close described segmentation.In this case, preferably, described another segmentation and described nut in the segmentation have corresponding surface of contact, and corresponding surface of contact forms sphere.
According to cooperating structure of the present invention,, therefore can guarantee high-air-tightness with simple structure with respect to the outside that cooperates because connecting tube no longer is held in twisted state.Then, in the high-air-tightness of realizing with respect to the outside that cooperates, also prevent from particle impurities to occur in the inside that cooperates.
In addition, according to the present invention, clamp structure can be closely fastening, so that improve the reliability that connects.Particularly, for example, when using screw bolt and nut or eyebolt, can use screw-driver or wrench etc. to rotate easily, and not use a plurality of spanners as clamp structure.Compare with the size of whole cooperation, screw bolt and nut or eyebolt can be relatively little, do not need the big stroke resemble the spanner in addition.Therefore, even when a plurality of guide-tube structures and each conduit being set comprising cooperating structure, also can carry out attended operation in high workload efficient ground, so that improve connection reliability.
Description of drawings
Fig. 1 is the front cross sectional view of traditional cooperating structure;
Fig. 2 A is the cooperating structure front cross sectional view of the first embodiment of the present invention;
Fig. 2 B is the side view of the cooperating structure of the first embodiment of the present invention;
Fig. 3 is the front cross sectional view of number of assembling steps that shows the cooperating structure of the first embodiment of the present invention;
Fig. 4 is the front cross sectional view that shows the number of assembling steps after Fig. 3 of cooperating structure of the first embodiment of the present invention;
Fig. 5 is removing under the state that clamp structure and cooperating structure open the stereogram of the clamping ring that uses in the cooperating structure of the first embodiment of the present invention;
Fig. 6 A is the front cross sectional view that shows the number of assembling steps of cooperating structure after Fig. 4 of the first embodiment of the present invention;
Fig. 6 B is the side view that shows the number of assembling steps of cooperating structure after Fig. 4 of the first embodiment of the present invention;
Fig. 7 is the side view of the cooperating structure of the second embodiment of the present invention;
Fig. 8 A is the front cross sectional view of the cooperating structure of the third embodiment of the present invention;
Fig. 8 B is the side view of the cooperating structure of the third embodiment of the present invention;
Fig. 9 is under disassembly status, the front elevation of the cooperating structure except clamping ring of the third embodiment of the present invention;
Figure 10 A is the amplification view of the part of the lasso in the cooperating structure of the assembly process third embodiment of the present invention;
Figure 10 B is that front cross sectional view is amplified in the part of the lasso in the cooperating structure of the third embodiment of the present invention under finishing stage;
Figure 11 is the side view of the cooperating structure of the fourth embodiment of the present invention;
Figure 12 is the amplification front cross sectional view of the part of the lasso in the cooperating structure of the fifth embodiment of the present invention under finishing stage;
Figure 13 is the front cross sectional view of the cooperating structure of the sixth embodiment of the present invention.
Embodiment
Below, embodiments of the invention will be described with reference to the accompanying drawings.
[first embodiment]
Fig. 2 A, 2B shows the cooperating structure that is in good working condition of the first embodiment of the present invention.The cooperating structure of present embodiment is used for airtight feud and connects a pair of connecting tube 1a, 1b.These connecting tubes 1a is formed with flange 2a, 2b respectively on the end portion of 1b.Flange 2a, 2b have inclined-plane 3a respectively, 3b, and this inclined-plane 3a, 3b is from their the outer Zhou Dynasty and connecting tube 1a, and the side direction that the leading end of 1b is relative has a down dip.Flange 2a, the apparent surface of 2b (connecting tube 1a, the end face of 1b) is formed with annular protrusion (Stamping Steel Ribbon) 4a, 4b.Two flange 2a, the respective bump 4a of 2b, 4b forms with identical size with identical shape.Each inclined-plane 3a, 3b are arranged on and flange 2a, on the side that each opposing side of 2b is relative (with connecting tube 1a, the side that each end face of 1b is relative), thereby make two connecting tube 1a, and 1b closely is arranged to two end faces toward each other.Therefore, form trapezoidal portions (this part has trapezoidal sectional shape), this trapezoidal portions has the inclined-plane 3a that limits bi-side, 3b.In this case, protruding 4a, the leading end of 4b (leading ends) is toward each other.Flange 2a is formed with step 5a, 5b on each apparent surface of 2b.These steps 5a, 5b limits the cylinder of minor diameter, and the tubular portion 7b of Shuo Ming retainer 7 is assemblied on the aforementioned cylinder after a while.In this, connecting tube 1a, 1b can be the parts that allows the long tube of fluid flow, perhaps can be the connector elements (so-called sealed pipe) that waits the end that is connected to this long tube by welding.
Smooth endless metal pad 6 is arranged between connecting tube 1a and the 1b.At Fig. 2 A, under the good working condition that 2B shows, metallic shim 6 and protruding 4a, the 4b contact and from both sides by protruding 4a, the 4b extruding.
Retainer 7 remains on the connecting tube 1a, and metallic shim 6 remains on the connecting tube 1a by this retainer 7.As Fig. 3, shown in 4, retainer 7 comprises said claw-like engagement portions branch (the craw-shaped engagement section) 7a that radial inward is extended, and this said claw-like engagement portions divides 7a to be arranged on the end of tubular portion 7b.The shape and size of tubular portion 7b allow tubular portion 7b to be assembled to connecting tube 1a and go up the step 5a that forms.The inner diameter of anastomosis part 7a is less than the outer diameter of metallic shim 6, thereby makes anastomosis part 7a to engage with metallic shim 6.Like this, anastomosis part 7a engages with the periphery of metallic shim 6, and metallic shim 6 is contained in the retainer 7, and tubular portion 7b is assemblied on the step 5a of connecting tube 1a.Like this, retainer 7 and metallic shim 6 remain among the connecting tube 1a.In this case, metallic shim 6 has another end face of the leading end that is engaged surface that part 7a stops and the protruding 4a that is contiguous to connecting tube 1a.Like this, anastomosis part 7a can be arranged on the whole circumference of an end of tubular portion 7b, perhaps can be only forms along the part in interior week of tubular portion 7b.
It is relative with connecting tube 1a that connecting tube 1b is arranged to, and a surface of protruding 4b contiguous metal pad 6, and this metallic shim 6 is held device 7 and remains on connecting tube 1a place, as mentioned above.Center ring 9 is mounted to each the flange 2a respect to one another around connecting tube 1a, the periphery of 2b.Like this, two flange 2a, 2b has identical shaped and same size, and does not have any being assemblied in gap in the center ring 9 substantially.
In above-mentioned structure, comprise connecting tube 1a, 1b, metallic shim 6, the clamped ring 10 of the assembly of retainer 7 and center ring 9 keeps.As shown in Figure 5, clamping ring 10 comprises connection straight a plurality of segmentations (being three segmentations in the present embodiment) 10a-10c.Adjacent sectional is pivotally connected to into them each other can be capable of pivoting relative to each other around axle 15.Each is 15 parallel to each other and vertical with the direction of each segmentation 10a-10c open and close.Particularly, the end of central segmented 10b is pivotally connected to segmentation 10a, and the other end is pivotally connected to segmentation 10c, thereby makes that they can be capable of pivoting relative to each other around axle 15.Therefore, when segmentation pivots the segmentation 10a make an end during near the segmentation 10c of the other end, can form the annular shown in Fig. 2 B.
Each segmentation 10a-10c is provided with groove 14 interior week, and groove 14 has and connecting tube 1a, the inclined-plane 3a of 1b, the inclined surface 14a of 3b correspondence, 14b.As mentioned above, as connecting tube 1a, 1b is arranged to toward each other near so that toward each other the time, and groove 14 has the shape and size of holding trapezoidal portions, and this trapezoidal portions has inclined-plane 3a, the bi-side that 3b limits.
The segmentation 10a at one end place holds the helical thread portion 11a of bolt 11, and bolt 11 is a clamp structure, and the segmentation 10a at an end place is provided with slot cut 12, and the size of this slot cut 12 does not allow head part 11b to pass through.Otch 12 comprises the enlarged 12a of the head part 11b that is used to hold bolt 11.The segmentation 10c of the other end is provided with tapped hole 13, and the helical thread portion 11a of bolt 11 is screwed in the tapped hole 13.Like this, in each accompanying drawing, external screw thread and female thread in explanation, have been omitted.
Be configured with at ring part under the state of above-mentioned each segmentation 10a-10c, the head part 11a of bolt 11 holds among the enlarged 12a of otch 12 of segmentation 10a at one end and stops, and helical thread portion 11b inserts in the tapped hole 13 of segmentation 10c of the other ends and is screwed in the tapped hole 13 by otch 12.Like this, each segmentation 10a-10c can be fixed to one another.At Fig. 2 A, under the good working condition shown in the 2B, flange 2a, 2b be arranged on the inside of each segmentation 10a-10c and cross metallic shim 6 and retainer 7 toward each other, have by two inclined-plane 3a, in the trapezoidal portions insertion groove 14 of the bi-side that 3b limits.Then, as mentioned above, bolt 11 inserts in the tapped hole 13 of segmentation 10c of the other ends and is screwed in the tapped hole 13 and is used for fixing by otch 12.In this structure, when bolt 11 deeper was screwed in the tapped hole 13, corresponding inclined-plane 14a, 14b were at inclined-plane 3a, and the last slip of 3b causes connecting tube 1a so that driving trapezoidal portions deeper enters in the groove 14 in the wedge shape mode, the flange 2a of 1b, and 2b is more close each other.As a result, protruding 4a, 4b apply bigger contact pressure for metallic shim 6.As a result, because metallic shim 6 tight contact projection 4a, therefore 4b increases tightness.Utilize this principle, be screwed into the amount of tapped hole 13, the tightness of expectation is provided by suitably regulating bolt 11.Like this, constituted Fig. 2 A, the cooperating structure of the present embodiment shown in the 2B.
Next, will the assembling method of this cooperating structure be described.
At first, as shown in Figure 3, the anastomosis part 7a of retainer 7 is bonded on the periphery of metallic shim 6, and metallic shim 6 inserts among the tubular portion 7b.Under this state, tubular portion 7b is assemblied on the step 5a of a connecting tube 1a.Like this, metallic shim 6 keeps by retainer 7 connected tube 1a.Like this, by forming retainer 7, metallic shim 6 and step 5a with highi degree of accuracy, the position that can make metallic shim 6 accurately and metallic shim 6 connected tube 1a are kept securely.Like this, by using retainer 7, metallic shim 6 can be concordant with connecting tube 1a.
Next, as shown in Figure 4, connecting tube 1b is arranged to relative with connecting tube 1a and near connecting tube 1a, protruding 4a, 4b respectively with the contact both sides of metallic shim 6.Under this state, center ring 9 is mounted to around connecting tube 1a, the flange 2a of 1b, the periphery of 2b.Like this, connecting tube 1b can align with connecting tube 1a, and connecting tube 1a accurately remains on the appropriate location with metallic shim 6, thus make metallic shim 6 not can with connecting tube 1a, move on the vertically vertical direction of 1b.Yet at this moment, although each member roughly is in the suitable position relation, each member is also unfixing, thereby does not also realize high-air-tightness.
Then, firmly fix each member, so that improve the tightness that is connected of connecting tube 1a and 1b with clamping ring 10.In each segmentation 10a-10c closure of open mode shown in Figure 5, so that form annular, each connecting tube 1a, the flange 2a of 1b, 2b is enclosed in inside.In this case, as Fig. 6 A, shown in the 6B, have by flange 2a, the inclined-plane 3a of 2b is in the trapezoidal portions insertion groove 14 of the both sides that 3b limits.Then, as mentioned above, bolt 11 inserts by otch 12 in the tapped hole 13 of segmentation 10c of the other ends, and is screwed in the tapped hole 13 and is used for fixing.
As Fig. 6 A, shown in the 6B, in the time of in bolt 11 a small amount of insertion tapped holes 13, the space between the segmentation 10a of an end and the segmentation 10c of the other end is not also reduced fully.In other words, the inner diameter of the annular of corresponding segment 10a-10c qualification (annulars that groove 14 limits) does not also fully reduce.Therefore, have by flange 2a, the inclined-plane 3a of 2b is in a small amount of insertion groove 14 of trapezoidal portions of the bi-side that 3b limits.Owing to this reason, when from connecting tube 1a, when the longitudinal direction of 1b was watched, flange 2a and 2b did not also have closer to each other.At Fig. 6 A, under the state shown in the 6B, although protruding 4a, the contact both sides of 4b and metallic shim 6, their contact pressure is low, does not also form enough tightness and prevents gas communication, thereby make cooperating structure still dissatisfied.
Therefore, bolt 11 further is screwed in the tapped hole 13.Then, when bolt 11 was screwed into tapped hole 13 in a large number, as Fig. 2 A, shown in the 2B, the space between the segmentation 10a of an end and the segmentation 10c of the other end reduced fully.Then, the inner diameter of the annular of corresponding segment 10a-10c qualification (annulars that groove 14 limits) fully reduces.Therefore, have by flange 2a, the inclined-plane 3a of 2b is in a large amount of insertion grooves 14 of trapezoidal portions of the both sides that 3b limits.As a result, when from connecting tube 1a, when the longitudinal direction of 1b was watched, the space between flange 2a and the 2b fully reduced.Under this state, therefore protruding 4a, 4b can prevent gas communication with the contact both sides of big contact pressure and metallic shim 6.Therefore, can in cooperating structure, realize enough tightness.
Can wait to determine that bolt 11 is screwed into tapped hole 13 to obtain the enough bubble-tight required amount of being screwed into by test in advance.Alternatively, can monitor tightness, then, when obtaining enough tightness, can stop to be screwed into operation in any time (being screwed into the operation period of tapped hole 13 at bolt 11) of the installation step of cooperating structure.
As Fig. 2 A, shown in the 2B, bolt 11 q.s when being screwed in the tapped hole 13, otch 12 aligns with tapped hole 13, thereby makes bolt 11 flatly keep.Then, the head part 11b of bolt 11 stably remains among the enlarged 12a of otch 12.Yet, be screwed into operation period, that is, in also inadequate stage of the amount of being screwed into, otch 12 does not align with tapped hole 13, as Fig. 6 A, shown in the 6B, thereby makes bolt 11 be held in respect to otch 12.At this moment, the head part 11b of bolt 11 is with the inner wall section of the enlarged 12a of otch 12 and unevenly contact.Therefore, in the present embodiment, the corresponding contact of the enlarged 12a of head part 11b and otch 12 partly forms has the corresponding spherical of roughly the same radius of curvature.Like this, because do not have the corner in head part 11b or the otch 12, so head part 11b or otch 12 can not be damaged and prevent that bolt from advancing, and no matter any part of the contact segment of head part 11b or otch 12 forms unbalanced contact each other by any way.
Like this, in the present embodiment, not only connecting tube 1a is provided with step 5a, and connecting tube 1b also is provided with step 5b.Although 5b is dispensable for this structural ledge, present embodiment has adopted the connecting tube 1b with step 5b, because adopt a pair of connecting tube 1a with accurate same structure, 1b can reduce manufacture cost and labour force.
Although the flange 2a that present embodiment adopts, 2b has thick relatively shape, and processes in the mode of complexity, and flange can form by simple shape, promptly only has connecting tube 1a, the extension end face of 1b.Yet, inclined-plane 3a still is set, 3b is used for limiting the trapezoidal portions of insertion groove 14, so that produce aforesaid wedge shape effect.
[second embodiment]
Fig. 7 shows second embodiment of cooperating structure of the present invention.The element similar with first embodiment adopts identical reference mark to represent, and omits their explanation.
In the present embodiment, be used for eyebolt 16 and replace bolt 11.Eyebolt 16 comprises helical thread portion 16a and utilizes pin 17 to be attached to the stopping part 16b of segmentation 10c pivotally.Helical thread portion 16a can insert in the otch 12 of segmentation 10a.Then, nut 18 and helical thread portion 16a engagement, and nut 18 engages with the enlarged 12a of otch 12.The corresponding contact of the enlarged 12a of nut 18 and otch 12 partly forms has the corresponding spherical of roughly the same radius of curvature.
The cooperating structure of present embodiment can be realized the effect similar to first embodiment, but adopts eyebolt 16 to simplify assembly manipulation.
According to above-mentioned first and second embodiments' of the present invention cooperating structure, can be by making flange 2a, the protruding 4a of 2b, the contact both sides of 4b and metallic shim 6 realizes high-air-tightness.In addition, when adopting clamping ring 10 holding flange 2a, during 2b, the power that do not apply is rotatably connected and manages 1a, 1b itself, thus making connecting tube 1a, 1b can not twist.As a result, metallic shim 6 and protruding 4a do not rub between the 4b, thereby particle do not occur.Even even long-time the use is perhaps because each member of temperature fluctuation expands a little or when shrinking, connecting tube 1a, 1b with respect to metallic shim 6 rotations, can not cause rubbing, thereby particle can not occur.According to this cooperating structure, not only can realize high-air-tightness, and prevent that impurity from appearring in inside the outside.This is suitable when fluid need be with high traffic flow, particularly in the gas supply section of semiconductor manufacturing facility.
[the 3rd embodiment]
Next, the third embodiment of the present invention will be described.Represent with identical reference mark with the element that first and second embodiments are similar, and omit their explanation.
Fig. 8 A, 8B shows the cooperating structure that is in good working condition of present embodiment.Fig. 9 shows the exploded view of the cooperating structure except clamping ring 10.The cooperating structure of present embodiment is used for connecting tube 21a is connected to another member hermetically, for example, and another connecting tube 21b that double dot dash line is represented.This cooperating structure comprises cooperation main body 23, connecting tube side flange member 24, front ferrule 25 and back lasso 26, center ring 9 and clamping ring 10, aforementioned cooperation main body 23 has the main body side of cooperation flange member 22, cooperates main body side flange member 22 integrally to be arranged on the leading end part that cooperates main body 23.
Cooperate main body 23 to be provided with and be used for connecting tube 21a is inserted the insertion portion 27a that cooperates main body 23.In addition, angular cutouts face 28 is formed on the leading end of the cooperation main body side flange member 22 that cooperates main body 23 on interior week partly.
Connecting tube side flange member 24 is hollow member, connecting tube 21a can extend by connecting tube side flange member 24, and be formed with angular cutouts face 29 on the interior week of the leading end of connecting tube side flange member 24 part, the leading end that connecting tube side flange member 24 is arranged to it is relative with the leading end that cooperates main body side flange member 22.
The lasso of present embodiment is the two ferrule arrangement that comprise front ferrule 25 and back lasso 26, as the seal ring on the periphery that is positioned at connecting tube 21a.Front ferrule 25 and back lasso 26 are arranged in the space that interior week limited of leading end part of interior week of the leading end part that cooperates main body side flange member 22 and connecting tube side flange member 24, and front ferrule 25 and back lasso 26 are arranged to leading end toward each other.Front ferrule 25 is wedge shapes, has the first mating face 25a and the second mating face 25b, and the second mating face 25b is on a side relative with the first mating face 25a.The first mating face 25a is the inclined-plane, and the tilt angle on this inclined-plane is roughly the same with the tilt angle of the cut sides 28 of the cooperation main body side flange member 22 that cooperates main body 23, and can engage with cut sides 28.Yet the first mating face 25a is greater than the cut sides 28 of the cooperation main body side flange member 22 that cooperates main body 23.On the other hand, back lasso 26 also is a wedge shape, has the first mating face 26a and the second mating face 26b, and the second mating face 26b is on a side relative with the first mating face 26a.The first mating face 26a is the inclined-plane, and the tilt angle of the cut sides 29 of the tilt angle on this inclined-plane and connecting tube side flange member 24 is roughly the same, and can engage with cut sides 29.
In the present embodiment, the angle of each mating face and cut sides limits in the following manner.Shown in Figure 10 A, when from back lasso 26 when watching, cooperate each and the longitudinal direction angulation " a " of connecting tube 21a among the first mating face 25a of the cut sides 28 of cooperation main body side flange member 22 of main body 23 and the front ferrule 25 that engages with cut sides 28.When from back lasso 26 when watching, each among the second mating face 26b of second mating face 25b of front ferrule 25 and the back lasso 26 that engages with the second mating face 25b and the longitudinal direction angulation " b " of connecting tube 21a.In this case, angle " a " is less than angle " b ", and angle " a " is an acute angle.On the other hand, when from back lasso 26 when watching, among the first mating face 26a of the cut sides 29 of connecting tube side flange member 24 and the back lasso 26 that engages with cut sides 29 each and the longitudinal direction angulation " c " of connecting tube 21a, angle " c " are the obtuse angles greater than 90 degree.Therefore, the part of the front ferrule 25 of the more close first mating face 25a produces the wedge shape effect, thereby prevents that it from penetrating in the otch of the cooperation main body side flange member 22 that cooperates main body 23.The part of the back lasso 26 of the more close first mating face 26a has the wedge shape effect, thereby prevents that it from penetrating in the otch of connecting tube side flange member 24.In addition, the part of the back lasso 26 of the more close second mating face 26b has the wedge shape effect, thereby prevents that it from penetrating the inside of part of the front ferrule 25 of the more close second mating face 25b.
Shown in Fig. 8 A, cooperate main body side flange member 22 and connecting tube side flange member 24 to have inclined-plane 22a respectively, a side direction relative with leading end has a down dip in 24a, inclined- plane 22a, 24a Zhou Dynasty outside each.Cooperate the inclined-plane 22a of main body side flange member 22 and connecting tube side flange member 24,24a is arranged on and respective flanges member 22a, on the relative side of the opposing side of 24a.Then, with to the similar mode of first embodiment shown in Fig. 2 A-6B, the guide end surfaces that two flange members 22,24 closely are arranged to them produces and has by inclined-plane 22a the trapezoidal portions of the bi-side that 24a limits toward each other.Center ring 9 be mounted to closely be arranged to them around 22,24, two flange members 22,24 of two flange members guide end surfaces toward each other.Like this, flange member 22,24 has the same external diameter size, and does not have any being assemblied in gap in the center ring 9 substantially.
As mentioned above, cooperate the cooperation main body side flange member 22 of main body 23 and leading end that connecting tube side flange member 24 is arranged to them toward each other.Then, connecting tube 21a inserts the insertion portion 27a that cooperates main body side flange member 22 by connecting tube side flange member 24.Front ferrule 25 and back lasso 26 are arranged in the leading end space that interior week limited partly of flange member 22,24.Center ring 9 is mounted to around the periphery of flange member 22,24.Then, clamping ring 10 is attached to the outside of center ring 9.The structure of clamping ring 10 and first embodiment's clamping ring identical (referring to Fig. 5).
As mentioned above, when the leading end of the more close connecting tube side flange of the leading end member 24 that cooperates main body side flange member 22, front ferrule 25 at first with the space that limits in interior week of the leading end of flange member 22,24 part in back lasso 26 closely contact, shown in Figure 10 A.Particularly, the cut sides 28 extruding first mating face 25a that cooperates main body side flange member 22, cause front ferrule 25 to move (right side in Figure 10 A) towards connecting tube 21a, and the cut sides 29 of the connecting tube side flange member 24 extruding first mating face 26a causes back lasso 26 towards cooperating main body 23 to move (left side in Figure 10 A).As a result, front ferrule 25 closely contacts each other with back lasso 26, and the second mating face 25a and 26b are engaged with each other.Then, when the leading end of the more close connecting tube side flange of the leading end member 24 that cooperates main body side flange member 22, the cut sides 28 extruding first mating face 25a, cause front ferrule 25 further to move (right side in Figure 10 A) towards connecting tube 21a, shown in Figure 10 B, and the cut sides 29 extruding first mating face 26a, cause back lasso 26 towards cooperating main body 23 to move (right side in Figure 10 A), and the cut sides 29 of the connecting tube side flange member 24 extruding first mating face 26a causes back lasso 26 towards cooperating main body 23 to move (left side in Figure 10 A).As a result, front ferrule 25 closely contacts each other with back lasso 26, and the second mating face 25a and 26b are engaged with each other.Then, when the leading end of the more close connecting tube side flange of the leading end member 24 that cooperates main body side flange member 22, the cut sides 28 extruding first mating face 25a, cause front ferrule 25 further to move (right side in Figure 10 A) towards connecting tube 21a, shown in Figure 10 B, and the cut sides 29 extruding first mating face 26a causes back lasso 26 towards cooperating main body 23 to move (left side in Figure 10 A).As a result, the length in the space between cut sides 28 and the cut sides 29 becomes and is shorter than the total length of front ferrule 25 and back lasso 26.In this case, because front ferrule 25 and back lasso 26 are made of metal, therefore be difficult to compression, front ferrule 25 and back lasso 26 are at the second mating face 25b, the office, joint of 26b slides relative to one another, and therefore is maintained in this space, has certain extruding force simultaneously.Yet the motion on the summit of front ferrule 25 and back lasso 26 is subjected to the upper surface 24b restriction of the otch that the leading end of connecting tube side flange member 24 partly locates.Like this, move inwardly the end of the second mating face 26b of back lasso 26, and pierce the periphery of connecting tube 21a.Like this, front ferrule 25 and back lasso 26 stably remain in this space.Like this, utilization pierces the end portion of back lasso 26 of the periphery of connecting tube 21a, front ferrule 25 and back lasso 26 are as seal ring, and the sealing ring closely contacts with the periphery of connecting tube 21a, so that make the attachment portion and the extraneous airtight feud sealing of connecting tube 21a and cooperation main body 23.And, utilize an end portion of the back lasso 26 of the periphery pierce connecting tube 21a, can prevent that connecting tube 21a breaks away from flange member 22,24.
Calculate the respective angles " a " of front ferrule 25 and back lasso 26, " b ", the relative size of " c " and hardness, size, shape etc., and consider hardness, the flange member 22 of connecting tube 21a, 24 the hardness and the shape of otch as mentioned above, thereby make an end portion of back lasso 26 pierce the periphery of connecting tube 21a, effect lower protruding edge member 22,24 at clamping ring 10 is approaching.
Like this, construct the cooperating structure of the present embodiment shown in Fig. 8 A.Like this, connecting tube 21a, 21b can be the parts that allows the long tube of fluid flow, perhaps can be the connector elements (so-called sealed pipe) that waits the end that is connected to this long tube by welding.In addition, present embodiment is configured to allow connecting tube 21b to insert the insertion portion 27b that cooperates main body 23, as the example of another member that is connected with connecting tube 21a.Yet the outlet/intake section with tubular form or hole shape is arranged in the shell of equipment of supply or exhausting air, and this outlet/intake section can be used as another member that is connected with connecting tube 21a, and cooperation main body 23 can be installed on this outlet/intake section.
The assembling method of this cooperating structure will be described below, and connecting tube 21a to be connected inserts among the insertion portion 27a that cooperates main body 23.Then, front ferrule 25, back lasso 26 and connecting tube side flange member 24 are arranged on the periphery of connecting tube 21a, are positioned at before or after the insertion portion of connecting tube 21a.Then, it is relative that the cut sides 28 that cooperates the leading end of the cooperation main body side flange member 22 of main body 23 partly to locate is arranged to the cut sides 29 partly located with the leading end of connecting tube side flange member 24, crosses front ferrule 25 and back lasso 26 is approaching.Under this state, center ring 9 is mounted to around the periphery of flange member 22,24.In the mode similar to first embodiment, flange member 22,24 is in alignment with each other by center ring 9, thereby does not move on the direction vertical with the longitudinal direction of connecting tube 21a.Subsequently, use clamping ring 10 to firmly fix each member so that improve the tightness that is connected with back lasso 6 by front ferrule 25.When bolt 11 fully was screwed into tapped hole 13, when when the longitudinal direction of connecting tube 21a is watched, the space between the leading end of flange member 22,24 became fully little.In this case, shown in Figure 10 B, front ferrule 25 and back lasso 26 push each other powerfully, thereby make back lasso 26 pierce fully in the periphery of connecting tube 21a.Like this, can prevent that connecting tube 21a breaks away from, and therefore front ferrule 25 and back lasso 26 can prevent the external communications of gas and cooperating structure as seal ring.As a result, can in cooperating structure, realize sufficient tightness.
Although omitted above stated specification, at any time, another member that is connected to connecting tube 21a is connected on a side relative with cooperating main body side flange member 22 and cooperates main body 23.Particularly, in the example shown in Fig. 8 A, among the extra connecting tube 21b insertion insertion portion 27b as another member.Other members such as extra connecting tube 21b can by be threaded, method such as welding is fixed to and cooperates main body 23.Like this, cooperating structure of the present invention can be connected to connecting tube 21a another members such as extra connecting tube 21b by the inner space (hollow space) that cooperates main body 23.Certainly, in the cooperating structure of present embodiment, the counter pair that is connected with connecting tube 21a is not limited to extra connecting tube 21b, can use various forms of members, as long as it can be arranged on the interior outlet/intake section with tubular form or hole shape of shell as part.
According to this cooperating structure, front ferrule 25 and back lasso 26 pressure each other contacts, cause an end portion of back lasso 26 to pierce the periphery of connecting tube 21a, thereby can prevent that connecting tube 21a breaks away from and the realization high-air-tightness.In addition, when using clamping ring 10 holding flange members at 22,24 o'clock, the power that do not apply is rotatably connected and manages 21a itself, thereby connecting tube 21a can not twist.As a result, even long-term the use, even perhaps because temperature fluctuation causes each member to expand a little or shrinks, connecting tube 21a will can relative engagement main body 23 not rotate, and further improve tightness.This is suitable when fluid need be with high traffic flow, particularly in the gas supply section of semiconductor manufacturing facility.
[the 4th embodiment]
Next, the 4th embodiment will be described, the 4th embodiment is the 3rd embodiment's a variation example.In the present embodiment, as shown in figure 11, bolt 11 is replaced by eyebolt 16, and this eyebolt 16 is similar to second embodiment of Fig. 7.In this case, by using eyebolt 16 can simplify assembly working.Remaining structure is identical with the 3rd embodiment with beneficial effect, therefore omits their explanation.
[the 5th embodiment]
Figure 12 shows the major component of the cooperating structure of the fifth embodiment of the present invention.In the present embodiment, adopt single ferrule arrangement, rather than the two ferrule arrangement among the 3rd embodiment.Particularly, as shown in figure 12, single lasso 30 is arranged in the space that interior week limited of leading end part of interior week of the leading end part that cooperates main body side flange member 22 and connecting tube side flange member 24.Then, this lasso 30 mating face engages with the cut sides 28 in the interior week of the leading end part of connecting tube side flange member 24.This lasso 30 is a bit flexible.Therefore, when the cut sides 28,29 of flange member 22,24 was pushed lasso 30 from both sides, lasso 30 was out of shape flexibly, thus slight curvature, and two end portion of lasso 30 pierce the periphery of connecting tube 21a, therefore cooperating structure and outside are sealed airtightly.
[the 6th embodiment]
Figure 13 shows the cooperating structure of the sixth embodiment of the present invention.The parts similar with the 3rd embodiment adopt identical reference mark to represent, and omit their explanation.
The cooperating structure of present embodiment is used to make a pair of connecting tube 21a, and 21b is connected to each other, and comprises two above-mentioned the 3rd embodiments' cooperating structure, and these two cooperating structures are symmetrical set.The cooperation main body 31 of present embodiment comprises the cooperation main body side flange member 22 that integrally is arranged on two end portions respectively.Connecting tube 21a, 21b insert a pair of insertion portion 27a from the both sides that cooperate main body 31 respectively, and front ferrule 25, back lasso 26 and connecting tube side flange member 24 be separately positioned on connecting tube 21a, on the periphery of 21b.Then, on the both sides that cooperate main body 31, center ring 9 and clamping ring 10 are installed in the outside of flange member 22,24 respectively, and fix to clamp ring 10 with bolt 11.In this case, front ferrule 25 closely contacts in clamping ring 10 each other with back lasso 26, causes an end portion of back lasso 26 to pierce connecting tube 21a, in the periphery of 21b (referring to Figure 10 B).As a result, can prevent connecting tube 21a, 21b breaks away from, and connecting tube 21a can be connected with the hermetic seal state by the inner space (hollow space) that cooperates main body 31 with connecting tube 21b.The cooperating structure of present embodiment is specially adapted to connect the intermediate member of connecting tube 21a and 21b.
Claims (12)
1. cooperating structure that is used to connect a pair of connecting tube, each described connecting tube has flange, and described flange partly is provided with annular protrusion at leading end, and described cooperating structure comprises:
Smooth endless metal pad, under the described flange state respect to one another of described a pair of connecting tube, described metallic shim pushes from both sides by each projection;
Retainer, described retainer has the anastomosis part that engages with at least a portion of described metallic shim, and by a maintenance in the described connecting tube;
Center ring crosses under the described metallic shim state respect to one another at the described flange of described a pair of connecting tube, and described center ring can be mounted to the periphery around described two flanges; With
Clamping ring, described clamping ring comprises a plurality of segmentations, it is attached pivotally each other that described a plurality of segmentation sets gradually and connect into adjacent segmentation, be used for when the segmentation at an end place that is positioned at described a plurality of segmentations and the segmentation that is positioned at the other end place are fixed to one another by clamp structure, limit annular by all described segmentations, so that the whole periphery that described metallic shim described flange respect to one another is crossed in covering and maintenance
Described cooperating structure is characterised in that:
Described each flange has the inclined-plane, and described inclined-plane has a down dip from a side direction relative with the described leading end outer Zhou Dynasty of described each flange respectively, and
The described segmentation of each of described clamping ring has the inclined surface corresponding respectively with the described inclined-plane of described each flange on interior week.
2. according to the cooperating structure of claim 1, wherein limit annular so that cover and keep crossing under the state of whole periphery of described metallic shim described flange respect to one another at described clamping ring, when described clamp structure makes the described segmentation at the described segmentation at an end place and the other end place more close each other, the described segmentation of each of described clamping ring is being moved in the radial direction inwardly, be used to make described flange more closely to keep each other, described each inclined surface is slided along described each inclined-plane of described each flange simultaneously.
3. cooperating structure that is used to connect connecting tube, described cooperating structure comprises:
Cooperate main body, described cooperation main body integrally is provided with in its leading end part and cooperates the main body side flange member, and described cooperation main body has insertion portion on week within it, and described connecting tube is from guide the described insertion portion of distolateral insertion;
Connecting tube side flange member, described connecting tube side flange member is arranged on the periphery of described connecting tube;
Lasso, described lasso remain on the periphery of described connecting tube;
Center ring, under the leading end of the described connecting tube side flange member state relative with the leading end of described cooperation main body side flange member, described center ring can be mounted to the periphery around described two kinds of flange members;
Clamping ring, described clamping ring comprises a plurality of segmentations, it is attached pivotally each other that described a plurality of segmentation sets gradually and connect into adjacent segmentation, be used for when the segmentation at an end place that is positioned at described a plurality of segmentations and the segmentation that is positioned at the other end place are fixed to one another by clamp structure, limit annular by all described segmentations, so that cover and keep having the whole periphery of the described flange member of leading end respect to one another
Described cooperating structure is characterised in that:
Described each flange member has the inclined-plane, and described inclined-plane has a down dip from a side direction relative with the described leading end outer Zhou Dynasty of described each flange,
The described segmentation of each of described clamping ring has the inclined surface corresponding respectively with the described inclined-plane of described each flange member on interior week, and
Described lasso is from the interior week of the leading end part that extends to described cooperation main body side flange member interior week of the leading end part of described connecting tube side flange member.
4. according to the cooperating structure of claim 3, wherein another connecting tube inserts from a side relative with described cooperation main body side flange member of described cooperation main body, and the inner space of described connecting tube by described cooperation main body is connected to described another connecting tube.
5. cooperating structure that is used to connect a pair of connecting tube, described cooperating structure comprises:
Cooperate main body, described cooperation main body integrally is provided with in two end portions and cooperates the main body side flange member, and described cooperation main body has a pair of insertion portion on interior week, is used for inserting from both sides described a pair of connecting tube;
A pair of connecting tube side flange member, described a pair of connecting tube side flange member is separately positioned on the periphery of described a pair of connecting tube;
A pair of lasso, described a pair of lasso remains on respectively on the periphery of described connecting tube;
A pair of center ring, described a pair of center ring is separately positioned on the two end portions of described cooperation main body, and under the leading end of described each the connecting tube side flange member state relative with the leading end of described each cooperation main body side flange member, described center ring can be mounted to the periphery around described two flange members; With
A pair of clamping ring, each described clamping ring comprises a plurality of segmentations, it is attached pivotally each other that described a plurality of segmentation sets gradually and connect into adjacent segmentation, be used for when the segmentation at an end place that is positioned at described a plurality of segmentations and the segmentation that is positioned at the other end place are fixed to one another by clamp structure, limit annular by all described segmentations, so that cover and keep having the whole periphery of the described flange member of leading end respect to one another
Described cooperating structure is characterised in that:
Described each flange member has the inclined-plane, and described inclined-plane has a down dip from a side direction relative with the described leading end outer Zhou Dynasty of described each flange member respectively,
The described segmentation of each of described clamping ring has the inclined surface corresponding respectively with the described inclined-plane of described each flange member on interior week,
Described lasso is from the interior week of the leading end part that extends to described cooperation main body side flange member interior week of the leading end of described connecting tube side flange member part, and
Respectively in the two end portions of the described cooperation main body structure that connects, be used for being connected described connecting tube and described cooperation main body with described connecting tube side flange member by described cooperation main body side flange member, under the leading end state respect to one another of the leading end of described cooperation main body side flange member and described connecting tube side flange member, described cooperation main body side flange member and described connecting tube side flange member keep by described center ring and described clamping ring, thereby make described a pair of connecting tube be connected by the inner space of described cooperation main body.
6. according to each cooperating structure among the claim 3-5, wherein said lasso comprises front ferrule and back lasso, described front ferrule has first mating face that the cut sides on the interior week that is used for described cooperation main body side flange member engages and has second mating face that is positioned on the side relative with described first mating face, described back lasso has first mating face that the cut sides on the interior week that is used for described connecting tube side flange member engages and has second mating face that is positioned on the side relative with described first mating face, can combine closely with described second mating face of described front ferrule in second mating face of described back lasso.
7. according to the cooperating structure of claim 6, wherein:
When lasso is watched after described, described second mating face of described second mating face of described front ferrule and described back lasso with respect to the formed angle of the longitudinal direction of described connecting tube greater than the described cut sides on the interior week of described first mating face of described front ferrule and described cooperation main body side flange member with respect to the formed angle of the longitudinal direction of described connecting tube, and
When lasso was watched after described, described first mating face of described back lasso and the described cut sides on the interior week of described connecting tube side flange member formed the obtuse angle with respect to the longitudinal direction of described connecting tube.
8. according to each cooperating structure among the claim 3-5, wherein limit annular so that cover and keep under the state of whole periphery of described each leading end part of described flange member respect to one another at described clamping ring, when described clamp structure makes the described segmentation at the described segmentation at an end place and the other end place more close each other, the described segmentation of each of described clamping ring is being moved in the radial direction inwardly, described each inclined surface is slided along described each inclined-plane of described each flange member simultaneously, so that the leading end of described flange member is more close each other, thereby improve the tightness of sealing by described lasso.
9. according to each cooperating structure among the claim 1-5, wherein said clamp structure is a bolt, be used for the described segmentation of receiving the other end place is twisted in the described segmentation at an end place, and described clamp structure can make aforementioned two segmentations more close each other when described bolt deeper is screwed into.
10. according to the cooperating structure of claim 9, the segmentation that being used in the head part of wherein said bolt and the described segmentation engages the described head part of described bolt has corresponding contact segment, and corresponding contact segment forms sphere.
11. according to each cooperating structure among the claim 1-5, wherein said clamp structure is an eyebolt, described eyebolt comprises: stopping part, described stopping part are attached in two segmentations of the every side that is positioned at described clamping ring one; Helical thread portion, described helical thread portion extends from described stopping part; And nut, described nut and the engagement of described helical thread portion and engage with in described two segmentations of the every side that is positioned at described clamping ring another, wherein when described helical thread portion deeper is screwed into described nut, with the described segmentation of described nut engages can the attached described segmentation of more close stopping part.
12. according to the cooperating structure of claim 11, wherein described another segmentation and the described nut in the segmentation has corresponding surface of contact, corresponding surface of contact forms sphere.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005344460A JP4942332B2 (en) | 2005-11-29 | 2005-11-29 | Joint structure |
| JP344460/2005 | 2005-11-29 | ||
| JP110828/2006 | 2006-04-13 | ||
| JP2006110828A JP2007285343A (en) | 2006-04-13 | 2006-04-13 | Joint structure |
| PCT/JP2006/322936 WO2007063717A1 (en) | 2005-11-29 | 2006-11-17 | Coupling structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101356395A CN101356395A (en) | 2009-01-28 |
| CN101356395B true CN101356395B (en) | 2011-02-16 |
Family
ID=38208647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800508239A Active CN101356395B (en) | 2005-11-29 | 2006-11-17 | Fitting structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4942332B2 (en) |
| CN (1) | CN101356395B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4999547B2 (en) * | 2007-05-18 | 2012-08-15 | イハラサイエンス株式会社 | Joint structure |
| JP4575973B2 (en) | 2007-10-05 | 2010-11-04 | シーケーディ株式会社 | Fluid device connection structure and fluid device unit |
| JP5427526B2 (en) * | 2009-09-28 | 2014-02-26 | イハラサイエンス株式会社 | Structure of clamp type fitting |
| JP5722645B2 (en) * | 2010-11-29 | 2015-05-27 | イハラサイエンス株式会社 | Joint structure |
| JP2012117622A (en) * | 2010-12-01 | 2012-06-21 | Ihara Science Corp | Pipe connection structure |
| JP3177094U (en) | 2012-05-08 | 2012-07-19 | イハラサイエンス株式会社 | Diaphragm valve |
| CN106104131B (en) * | 2014-02-27 | 2018-05-29 | 桑杜科技有限公司 | face seal fitting |
| CN104964109A (en) * | 2015-06-19 | 2015-10-07 | 李俊伟 | Hoop locking type double-contact-face metallic seal pressure-resistant and seepage-proof pipeline connection device |
| CN104930275A (en) * | 2015-06-19 | 2015-09-23 | 李俊伟 | Double-contact-surface metal sealing seepage preventing and high-pressure resisting clamp locking type pipeline connecting device |
| JP6439748B2 (en) | 2016-05-16 | 2018-12-19 | 株式会社豊田自動織機 | Clamp coupling tool and clamp coupling method |
| CN108194727B (en) * | 2018-02-02 | 2024-01-30 | 国科中子医疗科技有限公司 | Chain clamp for vacuum flange butt joint, mounting tool and mounting method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106128A (en) * | 1988-04-08 | 1992-04-21 | C.G.M.I. Composants Gas Pour La Microelectronique Internationale | Pipe connector, in particular for gases |
| CN2151339Y (en) * | 1992-09-25 | 1993-12-29 | 赵钢香 | Pipeline sealing connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552389A (en) * | 1982-08-23 | 1985-11-12 | Cajon Company | Fluid coupling |
| JPS6147174U (en) * | 1984-08-31 | 1986-03-29 | 株式会社 フジキン | pipe fittings |
| CA2127957A1 (en) * | 1993-09-29 | 1995-03-30 | Gerald A. Babuder | Clamped flange fitting and assembly |
| JPH09196261A (en) * | 1996-01-12 | 1997-07-29 | Nkk Corp | Pipe coupling structure |
-
2005
- 2005-11-29 JP JP2005344460A patent/JP4942332B2/en active Active
-
2006
- 2006-11-17 CN CN2006800508239A patent/CN101356395B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5106128A (en) * | 1988-04-08 | 1992-04-21 | C.G.M.I. Composants Gas Pour La Microelectronique Internationale | Pipe connector, in particular for gases |
| CN2151339Y (en) * | 1992-09-25 | 1993-12-29 | 赵钢香 | Pipeline sealing connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4942332B2 (en) | 2012-05-30 |
| CN101356395A (en) | 2009-01-28 |
| JP2007147011A (en) | 2007-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101356395B (en) | Fitting structure | |
| US4451364A (en) | High pressure seal and coupling | |
| KR101955606B1 (en) | Pipe clamp | |
| KR101292919B1 (en) | Coupling structure | |
| KR20180006282A (en) | Plastic seal fitting | |
| JP4999547B2 (en) | Joint structure | |
| KR20140072571A (en) | Apparatus for connecting pipe with increased tensile force and combination by using clamp | |
| KR20240110859A (en) | Stop valve and its air conditioning unit | |
| US5141262A (en) | Means of lowering the operational temperature for elastomeric seals | |
| CN101956751B (en) | Elastic washer for pipe connection and locking connection pipe using same | |
| CN212361181U (en) | Fast-assembling type joint for mining machinery | |
| RU2357068C1 (en) | Pressure tight entry (versions) | |
| KR200391276Y1 (en) | A structure of pipe joint | |
| CN215763313U (en) | Forged steel corrugated pipe stop valve | |
| CN212616475U (en) | Integral structure's card pressure formula ball valve | |
| CN212407859U (en) | Elastic sealing metal ferrule type pipe joint | |
| JP5722645B2 (en) | Joint structure | |
| CN108930855B (en) | Hydraulic pipeline flexible connection structure and method suitable for compact space | |
| CN111336298B (en) | Valve device and pipeline connection structure | |
| KR101540109B1 (en) | Pipe connector assembly | |
| RU70928U1 (en) | SEALED INPUT (OPTIONS) | |
| CN117006125B (en) | Connection locking structure for hydraulic equipment | |
| CN211851746U (en) | Double-pipe double-stage wellhead sealer | |
| CN215410411U (en) | Tee joint for faucet | |
| CN216307037U (en) | Light-duty quick connect coupling for vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |