CN1955533A - Seal ring and joint and connection mechanism of steel pipe - Google Patents
Seal ring and joint and connection mechanism of steel pipe Download PDFInfo
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- CN1955533A CN1955533A CN 200510114622 CN200510114622A CN1955533A CN 1955533 A CN1955533 A CN 1955533A CN 200510114622 CN200510114622 CN 200510114622 CN 200510114622 A CN200510114622 A CN 200510114622A CN 1955533 A CN1955533 A CN 1955533A
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Abstract
A sealing ring and its joint mechanism between jointer and steel pipe are disclosed are characterized by that there is no water leakage (or spray) even if a nut is not turned tightly. Said sealing ring has a pentagonal cross-section, and several small bosses (or slots) on one end face (or another end face) and its peripheral surface, which can be compressed.
Description
Technical field
The present invention relates to find at an easy rate to forget to tighten and be used to link the seal ring of the joint and the nut of the steel pipe that is connected with this joint and used the joint of sealing circle and the bindiny mechanism of steel pipe.
Background technique
Owing in each layer of building, be covered with the pipe arrangements such as waterpipe of building mostly, therefore when building, also exist the binding operation between a lot of these pipe arrangements.Binding between such pipe arrangement can be carried out with for example such bindiny mechanism shown in the patent documentation 1.Promptly, in Figure 15, the end of 1 steel pipe 1 and an end of joint 2 are linked together via seal ring 4 with nut 3, though not expression in this Figure 15, on another square end of joint 2, be connected with 1 steel pipe similarly, the pipe arrangement net of steel pipe 1 spread all over by such bindiny mechanism.
Above-mentioned joint 2 has the 1st notch part 6 that is made of the Embedded Division 6b with a side's of thread form projection 5 contacted tapered portion 6a of plane of inclination 5a and seal ring, and described thread form projection has 2 plane of inclination 5a, 5b of the end periphery that is formed on steel pipe 1.Above-mentioned nut 3, be formed with the 2nd notch part 3a on the opposing party's who is close to above-mentioned thread form jut 5 the plane of inclination 5b, have simultaneously when the external screw thread 2a of the female thread 3b of nut 3 and joint 2 screws togather fixedly, with the contacted joint contact surfaces 3c of end face of joint 2.Above-mentioned seal ring 4, shown in Figure 16,17, be the circular parts that section has polygonal shape, it has when the external screw thread 2a of the female thread 3b of above-mentioned nut 3 and above-mentioned joint 2 screws togather, with the contacted inclined-plane 4a of plane of inclination 5a that is formed on the opposing party of the thread form jut 5 on the steel pipe 1, with the contacted nut of the joint contact surfaces 3c of above-mentioned nut 3 side end face 4b, and the outer circumferential face 4c and the joint side end face 4d that form in the mode on the seal ring Embedded Division 6b that is close to joint 2 respectively.
Patent documentation 1: the real fair 2-37015 communique of Japan
According to above-mentioned conventional art, even if with the female thread 3b of nut 3 with respect to the external screw thread 2a of joint 2, form as the hand rivet(ing) more weak by fastening force temporary fixed, under the fastening fully situation of failing, also be difficult to differentiate from the outside, therefore when the inspection that engineering finishes, all ignore mostly in the past.In addition, leak though tentatively flow through high pressure water inspection after piping engineering finishes, even if owing to also be close on the plane of inclination 5a of joint 2, steel pipe 1 at the stage of hand rivet(ing) seal ring 4, therefore all water-tight mostly, its result ignores in the past mostly.Owing to such reason, when when nut 3 not being brought into use under with respect to the fastening fully state of joint 2, exist nut 3 and disconnect with being connected suddenly of joint 2, flow through the water or other fluid ejection in the steel pipe 1, the water that perhaps spills gradually gathers together and pollutes such problem points in the building.
Summary of the invention
This invention is developed in order to address the above problem, on as this device this point, in the 1st invention, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links the end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane of the end of a side end face constitutes, it is characterized in that, on above-mentioned outer circumferential face and the opposing party's end face, be formed with compressible projection of dwindling.
In the 2nd invention, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links the end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane of the end of a side end face constitutes, it is characterized in that, on above-mentioned outer circumferential face and the opposing party's end face, be formed with the compressible groove that dwindles.
In the 3rd invention, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links the end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane of the end of a side end face constitutes, it is characterized in that, on above-mentioned inner peripheral surface and inclined-plane, be formed with compressible projection of dwindling.
In the 4th invention, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links the end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane of the end of a side end face constitutes, it is characterized in that, on above-mentioned inner peripheral surface and inclined-plane, be formed with the compressible groove that dwindles.
In the 5th invention, it is the bindiny mechanism of a kind of joint and steel pipe, it is with joint and the steel pipe that is formed with the thread form projection in the end, via the seal ring of above-mentioned the 1st invention, is fastened to that this nut connects with joint and the joint that is connected and the bindiny mechanism of steel pipe with nut, wherein
The seal ring of above-mentioned the 1st invention is in such state: above-mentioned joint and be formed with the outer circumferential face of compressible projection of dwindling and a side end face is close to, and a side's of the thread form projection of above-mentioned steel pipe plane of inclination and inner peripheral surface and inclined-plane are close to.
In the 6th invention, it is the bindiny mechanism of a kind of joint and steel pipe, its be with joint and be formed with the steel pipe of thread form projection in the end, via the seal ring of above-mentioned the 2nd invention, be fastened to that this nut and joint connect and the joint that connects and the bindiny mechanism of steel pipe with nut, wherein
The seal ring of above-mentioned the 2nd invention is in such state: above-mentioned joint and be formed with the outer circumferential face of the compressible groove that dwindles and a side end face is close to, and a side's of the thread form projection of above-mentioned steel pipe plane of inclination and inner peripheral surface and inclined-plane are close to.
In the 7th invention, it is the bindiny mechanism of a kind of joint and steel pipe, thereby its be with joint and be formed with the steel pipe of thread form projection in the end, via the seal ring of above-mentioned the 3rd invention, be fastened to this nut and joint the connect joint that connects and the bindiny mechanism of steel pipe with nut, wherein
The seal ring of above-mentioned the 3rd invention is in such state: the thread form projection of above-mentioned steel pipe is close to the inner peripheral surface and the inclined-plane that are formed with compressible projection of dwindling.
In the 8th invention, it is the bindiny mechanism of a kind of joint and steel pipe, thereby it is with joint and the steel pipe that is formed with the thread form projection in the end, via the seal ring of above-mentioned the 4th invention, is fastened to this nut and joint the connect joint that is connected and the bindiny mechanism of steel pipe with nut, wherein
The seal ring of above-mentioned the 4th invention is in such state: the thread form projection of above-mentioned steel pipe is close to the inner peripheral surface and the inclined-plane that are formed with the compressible groove that dwindles.
According to the 1st seal ring,, therefore will between the face of the joint that connects, produce the gap owing to this projection owing to be to be formed with compressible projection of dwindling on the outer circumferential face of seal ring of ring-type of 5 limit shapes and the opposing party's the end face at section.Owing to projection can not be dwindled with more weak fastening force, therefore this gap is effective in so interim fastening stage of hand rivet(ing), the fluid that flows through in the steel pipe just escapes to the outside by this gap, can judge not by fastening fully situation, thereby prevent the careless omission checked.And at this moment by with instrument that nut is fastening powerfully, seal ring will be removed the gap thereby therefore projection can be dwindled along the plane of inclination to the central axial direction compression of diametric(al) and steel pipe, becomes common user mode.The 1st seal ring can effectively utilize in the bindiny mechanism of steel pipe as described above and joint.
Invention according to the 2nd, substitute above-mentioned the 1st protrusion-shaped grooving, this groove does not compress when hand rivet(ing) and dwindles and fluid is passed through, and dwindles when tool using is fastening powerfully with nut, thereby the groove flattening is prevented the leakage of fluid, become common user mode.
According to the 3rd invention,, therefore will between the plane of inclination of the steel pipe that connects, produce the gap owing to this projection owing to be to be formed with compressible projection of dwindling on the inner peripheral surface of seal ring of ring-type of 5 limit shapes and the inclined-plane at section.This gap and the 1st similarly can not be compressed with the so more weak power of hand rivet(ing) and to dwindle, and dwindle and be compressed when having used instrument powerful, therefore can prevent the careless omission checked, and, can keep common user mode.The 3rd seal ring can effectively utilize in the bindiny mechanism of steel pipe as described above and joint.
Invention according to the 4th, substitute above-mentioned the 3rd protrusion-shaped grooving, thereby this groove does not compress when hand rivet(ing) and dwindles by fluid, dwindles when tool using is fastening powerfully with nut, thereby the groove flattening is prevented the leakage of fluid, become common user mode.
The 5th the steel pipe and the bindiny mechanism of joint have the advantage of the bindiny mechanism that can access steel pipe illustrated in the part of above-mentioned the 1st seal ring and joint.
The 6th the steel pipe and the bindiny mechanism of joint have the advantage of the bindiny mechanism that can access steel pipe illustrated in the part of above-mentioned the 2nd seal ring and joint.
The 7th the steel pipe and the bindiny mechanism of joint have the advantage of the bindiny mechanism that can access steel pipe illustrated in the part of above-mentioned the 3rd seal ring and joint.
The 8th the steel pipe and the bindiny mechanism of joint have the advantage of the bindiny mechanism that can access steel pipe illustrated in the part of above-mentioned the 4th seal ring and joint.
Description of drawings
Fig. 1 is the hand rivet(ing) of bindiny mechanism of the 1st embodiment's the steel pipe of this invention and joint and the figure of instrument riveting.
Fig. 2 is the stereogram of the 1st embodiment's seal ring.
Fig. 3 is its front view.
Fig. 4 is its plan view.
Fig. 5 is its sectional drawing.
Fig. 6 be its invention the 2nd embodiment with the corresponding figure of Fig. 1.
Fig. 7 is the stereogram of the 2nd embodiment's seal ring.
Fig. 8 is its front view.
Fig. 9 is its plan view.
Figure 10 is its sectional drawing.
Figure 11 is the 1st embodiment's other the stereogram of seal ring.
Figure 12 is the 2nd embodiment's other the stereogram of seal ring.
Figure 13 is the 1st embodiment's other the stereogram of seal ring.
Figure 14 is the 2nd embodiment's other the stereogram of seal ring.
Figure 15 is steel pipe and the hand rivet(ing) of the bindiny mechanism of joint and the figure of instrument riveting in the past.
Figure 16 is the stereogram of seal ring in the past.
Figure 17 is its sectional drawing.
Label declaration
1 steel pipe, 2 joints
3 nut 3a the 2nd notch part
3b female thread 3c joint end-to-end joint part
4 seal ring 4a inclined-planes
4b nut side end face 4c outer circumferential face
4d joint side end face 4e inner peripheral surface
5 thread form projections 6 the 1st notch part
6b seal ring Embedded Division 7 projections
8 kicks, 9 grooves
Embodiment
According to the following drawings, the example of the optimum of this invention is described.For with routine identical component parts in the past, be marked with same numeral and omit explanation.
Fig. 1 to Fig. 5 has showed the 1st embodiment of the bindiny mechanism of the steel pipe 1 of this invention and joint 2, and Fig. 1 has showed the fastened state of a side (left side among the figure) of joint 2, and the opposing party (right side among the figure) is the state of hand rivet(ing).And Fig. 2 to Fig. 5 has showed the compressible seal ring that dwindles 4 that uses, be made of the rubber elastomeric material in the 1st embodiment.Sealing circle 4 is that section is the circular parts of 5 limit shapes, by 2 nut side end face 4b, joint side end face 4d, outer circumferential face 4c, inner peripheral surface 4e and link the end of this inner peripheral surface 4e and the inclined-plane 4a of the end of nut side end face 4b constitutes.And, on its outer circumferential face 4c and joint side end face 4d, be formed with projection 7.This projection 7 forms 4 places with 90 ° of intervals in this embodiment, but is not limited thereto, as long as have a plurality of.In addition, the shape of projection 7 also can substitute and protrude bar-shaped shape on the central axis direction of seal ring 4, as shown in figure 11, is at outer circumferential face 4c and is formed with the shape of a plurality of kicks 8 on one week of joint side end face 4d.The such projection 7 or the projecting height and the section shape of kick 8 are not particularly limited, but it has at the consistency and elasticity that is compressed the degree that can flatten when dwindling or be absorbed in to inside with instrument tightening nut 3; And possesses the consistency and elasticity of when hand rivet(ing), not allowing yielding degree.
In addition, Figure 13 has showed another other the embodiment of seal ring 4, substitutes the projection 7 of above-mentioned Fig. 2 to the 1st embodiment shown in Figure 5, has formed groove 9.Because this groove 9 is to form continuously in the mode of leading to nut side end face 4b on the outer circumferential face 4c and joint side end face 4d of seal ring 4, from joint side end face 4d, so fluid is just by this groove 9, flow out to nut side end face 4b from joint side end face 4d.The number of groove 9 does not limit especially.
Though the degree of depth of such groove 9 and wide section shape limit especially, should be such parts: when being compressed with instrument tightening nut 3 when dwindling, groove 9 has the consistency and elasticity of the degree that can be crushed; And, when hand rivet(ing), have the consistency and elasticity of not allowing yielding degree.
In order to use such seal ring 4 to form the bindiny mechanism of steel pipe 1 and joint 2, at first, seal ring Embedded Division 6b on week is embedded in seal ring 4 in the end that is formed on joint 2 earlier, and projection 7 or groove 9 on making it and being formed on its outer circumferential face 4c and joint side end face 4d contact.After this is ready to complete, as shown in Figure 1,, itself and joint 2 are inserted simultaneously in the contacted mode of plane of inclination 5a of the tip side of the thread form jut 5 on the inclined-plane 4a of seal ring 4 and the end that is formed on steel pipe 1.Then, the female thread 3b of nut 3 and the external screw thread 2a of joint 2 are screwed, hand rivet(ing) then, the 2nd notch part 3a contact of the inboard of described nut is on the opposing party's of the thread form jut 5 of steel pipe 1 plane of inclination 5b.Like this, just become the interim fastening coupled condition shown in the right side of Fig. 1.So, step by step that steel pipe 1 and joint 2 is fastening temporarily, with instrument that nut 3 is fastening with respect to joint 2 more afterwards, thus become the state in the left side of Fig. 1, thus finish.
At this moment, if exist the state of hand rivet(ing) just instrument of no use fastening, shown in the right side of Fig. 1 during such position, the groove 9 that does not show by gap S between the seal ring Embedded Division 6b that is formed on the seal ring 4 that forms by projection 7 and joint 2 or figure, the fluid that flows through in the steel pipe 1 will spill, and therefore can differentiate not fastening state at an easy rate.
When joint 2 and nut 3 is complete when fastening with brute force with instrument, shown in the left side of Fig. 1, seal ring 4 dwindles because of fastening being compressed of nut 3, therefore projection 7 is crushed and gap S is sealed, perhaps in addition, groove 9 sealings that also will scheme not show, state is close in being connected to become of steel pipe 1 and joint 2, finishes connection.
Secondly, the 2nd embodiment who shows the bindiny mechanism of the steel pipe 1 of this invention and joint 2 according to Fig. 6 to Figure 10.Fig. 6 has showed that a side (left side among the figure) of joint 2 is fastened states, and the opposing party's a side (right side among the figure) is the state of hand rivet(ing).And Fig. 7 to Figure 10 has showed the compressible seal ring that dwindles 4 that uses, be made of elastic members such as rubber in the 2nd embodiment.The place that sealing circle 4 and above-mentioned the 1st embodiment's seal ring 4 is different, the formation position that is projection 7 is the inner peripheral surface 4e and the inclined-plane 4a this point of seal ring 4.Other are identical formations.In this embodiment, though projection 7 also is to form 4 places with 90 ° of intervals, be not limited thereto, so long as a plurality of getting final product.In addition, the shape of projection 7 also can be to substitute to protrude bar-shaped shape on the central axis direction of seal ring 4, as shown in figure 12, is formed with the shape of a plurality of kicks 8 on one week at inner peripheral surface 4e and inclined-plane 4a.Other and the 1st embodiment's seal ring 4 is identical, the Therefore, omited explanation.
In addition, Figure 14 has showed another other the embodiment of seal ring 4, substitutes the projection 7 of above-mentioned Fig. 7 to the 2nd embodiment shown in Figure 10, has formed groove 9.Because this groove 9 is to form continuously in the mode of leading to nut side end face 4b on the inner peripheral surface 4e and inclined-plane 4a of seal ring 4, from joint side end face 4d, so fluid is just by this groove 9, flow out to nut side end face 4b from joint side end face 4d.The number of groove 9 does not limit especially.In addition, though the degree of depth of such groove 9 and wide section shape limit especially, same as the previously described embodiments, should be such parts: when being compressed with instrument tightening nut 3 when dwindling, groove 9 has the consistency and elasticity of the degree that can be crushed; And, when hand rivet(ing), have the consistency and elasticity of not allowing yielding degree.
If narration is embedded in seal ring 4 with the step of the bindiny mechanism of such seal ring 4 formation steel pipes 1 and joint 2 and similarly above-mentioned at the seal ring Embedded Division 6b of joint 2, its outer circumferential face 4c and joint side end face 4b are contacted with it.After this is ready to complete, as shown in Figure 6, touch with projection 7 on the inclined-plane 4a that is formed on seal ring 4 or groove 9 the thread form jut 5 on the end that is formed on steel pipe 1 tip side plane of inclination 5a and be formed on projection 7 on the inner peripheral surface 4e or the mode of the tip side outer circumferential face that groove 9 touches steel pipe 1, itself and joint 2 are inserted simultaneously; With similarly above-mentioned, the female thread 3b of nut 3 is screwed on the external screw thread 2a of joint 2 afterwards, carries out hand rivet(ing) afterwards.
Thus, become the interim fastening coupled condition shown in the right side of Fig. 6.So, step by step that steel pipe 1 and joint 2 is fastening temporarily, with instrument that nut 3 is fastening with respect to joint 2 more afterwards, thus become the state in the left side of Fig. 6, finish.
At this moment, if exist the state of hand rivet(ing) just instrument of no use fastening, shown in the right side of Fig. 6 during such position, by being formed on the seal ring 4 that forms by projection 7 and plane of inclination 5a or the gap S between the outer circumferential face or the groove 9 of steel pipe 1, the fluid that flows through in the steel pipe 1 will spill, and therefore can differentiate not fastening state at an easy rate.
When with instrument that joint 2 and nut 3 is complete when fastening with brute force, shown in the left side of Fig. 6, seal ring 4 dwindles because of fastening being compressed of nut 3, therefore projection 7 is crushed and with gap S sealing, in addition, also groove 9 is flattened and sealing, steel pipe 1 is to be close to state with being connected of joint 2, finishes.
In addition, though be the explanation that the situation that connects steel pipes 1 and steel pipe 1 via joint 2 is carried out in the above description, when connecting other parts such as steel pipe 1 and bend pipe, also be same.In addition, though the qualification especially of the kind of steel pipe 1, owing to must form thread form projection 5 in the end of steel pipe 1, so the thin-wall stainless steel steel pipe is especially suitable.
Prospects for commercial application
Especially effective when using as raceways such as water pipes, in addition, also be applicable to gas or The connection of the pipe arrangement of other fluids.
Claims (8)
1. seal ring, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links an end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane constituted of an end of a side end face, it is characterized in that, on above-mentioned outer circumferential face and the opposing party's end face, be formed with compressible projection of dwindling.
2. seal ring, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links an end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane constituted of an end of a side end face, it is characterized in that, on above-mentioned outer circumferential face and the opposing party's end face, be formed with the compressible groove that dwindles.
3. seal ring, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links an end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane constituted of an end of a side end face, it is characterized in that, on above-mentioned inner peripheral surface and inclined-plane, be formed with compressible projection of dwindling.
4. seal ring, it is that section is by 2 end faces, outer circumferential face, inner peripheral surface and links an end of inner peripheral surface and the seal ring of the ring-type of the 5 limit shapes that the inclined-plane constituted of an end of a side end face, it is characterized in that, on above-mentioned inner peripheral surface and inclined-plane, be formed with the compressible groove that dwindles.
5. the bindiny mechanism of joint and steel pipe, it is to have aforesaid right to require 1 described sealable enclosure to be fastened to nut that this nut connects with joint and the joint that is connected and the bindiny mechanism of steel pipe is characterized in that joint and the steel pipe that is formed with the thread form projection in the end, middle Jie:
Aforesaid right requires 1 described seal ring to be in such state: above-mentioned joint and be formed with the outer circumferential face of compressible projection of dwindling and a side end face is close to, and a side's of the thread form projection of above-mentioned steel pipe plane of inclination and inner peripheral surface and inclined-plane are close to.
6. the bindiny mechanism of joint and steel pipe, it is to have aforesaid right to require 2 described sealable enclosures to be fastened to nut that this nut connects with joint and the joint that is connected and the bindiny mechanism of steel pipe is characterized in that joint and the steel pipe that is formed with the thread form projection in the end, middle Jie:
Aforesaid right requires 2 described seal rings to be in such state: above-mentioned joint and be formed with the outer circumferential face of the compressible groove that dwindles and a side end face is close to, and a side's of the thread form projection of above-mentioned steel pipe plane of inclination and inner peripheral surface and inclined-plane are close to.
7. the bindiny mechanism of joint and steel pipe, it is to have aforesaid right to require 3 described sealable enclosures to be fastened to nut that this nut connects with joint and the joint that is connected and the bindiny mechanism of steel pipe is characterized in that joint and the steel pipe that is formed with the thread form projection in the end, middle Jie:
Aforesaid right requires 3 described seal rings to be in such state: the thread form projection of above-mentioned steel pipe is close to the inner peripheral surface and the inclined-plane that are formed with compressible projection of dwindling.
8. the bindiny mechanism of joint and steel pipe, it is to have aforesaid right to require 4 described sealable enclosures to be fastened to nut that this nut connects with joint and the joint that is connected and the bindiny mechanism of steel pipe is characterized in that joint and the steel pipe that is formed with the thread form projection in the end, middle Jie:
Aforesaid right requires 4 described seal rings to be in such state: the thread form projection of above-mentioned steel pipe is close to the inner peripheral surface and the inclined-plane that are formed with the compressible groove that dwindles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101146228A CN100451422C (en) | 2005-10-24 | 2005-10-24 | Seal ring and joint and connection mechanism of steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101146228A CN100451422C (en) | 2005-10-24 | 2005-10-24 | Seal ring and joint and connection mechanism of steel pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1955533A true CN1955533A (en) | 2007-05-02 |
| CN100451422C CN100451422C (en) | 2009-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101146228A Active CN100451422C (en) | 2005-10-24 | 2005-10-24 | Seal ring and joint and connection mechanism of steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100451422C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156026A (en) * | 2011-02-23 | 2011-08-17 | 上海华钢不锈钢有限公司 | Sealing ring for underwater experiment of stainless steel pipe |
| CN108351056A (en) * | 2015-10-27 | 2018-07-31 | 日新制钢株式会社 | Tubular structure object and its manufacturing method |
| CN110131497A (en) * | 2019-05-31 | 2019-08-16 | 中冶建工集团有限公司 | The method that pipeline is attached using pipe connector lug |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2557662B1 (en) * | 1983-12-29 | 1987-12-31 | Commissariat Energie Atomique | FLEXIBLE METAL GASKET COMPRISING CONSUMABLE HIGHLIGHTS |
| JPH07286686A (en) * | 1994-04-15 | 1995-10-31 | Osaka Gas Co Ltd | Seal ring for mechanical joint |
| EP0845092A1 (en) * | 1995-08-16 | 1998-06-03 | Manfred Fröhlich | High-pressure connection system |
| JP3553713B2 (en) * | 1995-11-27 | 2004-08-11 | 株式会社水研 | Fluid pipe seal structure |
| JP3895440B2 (en) * | 1997-10-13 | 2007-03-22 | Ｎｏｋ株式会社 | Gasket and gasket mounting structure |
| IL127327A (en) * | 1998-08-24 | 2002-07-25 | Plasson Ltd | Pipe coupling |
| DE19958475A1 (en) * | 1999-11-30 | 2001-06-13 | Parker Hannifin Gmbh | Pipe connection and process for its manufacture |
| US6357760B1 (en) * | 2000-05-19 | 2002-03-19 | Michael Doyle | Ring seal |
| JP2002122276A (en) * | 2000-10-10 | 2002-04-26 | On Industries Ltd | Connecting mechanism of thin stainless steel pipe and coupler |
| DE20320542U1 (en) * | 2003-12-19 | 2004-09-16 | Bode Gmbh | Sealing ring for a pipe joint sleeve comprises a shaped outer part of high-performance elastomer and a partially exposed base core of a harder plastic |
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2005
- 2005-10-24 CN CNB2005101146228A patent/CN100451422C/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156026A (en) * | 2011-02-23 | 2011-08-17 | 上海华钢不锈钢有限公司 | Sealing ring for underwater experiment of stainless steel pipe |
| CN108351056A (en) * | 2015-10-27 | 2018-07-31 | 日新制钢株式会社 | Tubular structure object and its manufacturing method |
| US11098827B2 (en) | 2015-10-27 | 2021-08-24 | Nippon Steel Corporation | Tubular structure and manufacturing method therefor |
| CN110131497A (en) * | 2019-05-31 | 2019-08-16 | 中冶建工集团有限公司 | The method that pipeline is attached using pipe connector lug |
| CN110131497B (en) * | 2019-05-31 | 2021-03-30 | 中国第十八冶金建设有限公司 | Method for connecting pipelines by using pipeline connecting joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100451422C (en) | 2009-01-14 |
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