CN106764164A - A kind of insulating joint - Google Patents
A kind of insulating joint Download PDFInfo
- Publication number
- CN106764164A CN106764164A CN201710209419.1A CN201710209419A CN106764164A CN 106764164 A CN106764164 A CN 106764164A CN 201710209419 A CN201710209419 A CN 201710209419A CN 106764164 A CN106764164 A CN 106764164A
- Authority
- CN
- China
- Prior art keywords
- joint body
- insulating
- ring
- locking nut
- joint
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/02—Electrically insulating joints or couplings
- F16L25/021—Electrically insulating joints or couplings for screw-threaded joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The present invention relates to a kind of insulating joint, including insulation connection two the first joint bodys and the second joint body of pressure pipeline, the first joint body other end is provided with external screw thread and internal plug seat, insulated enclosure back-up ring is provided with internal plug seat, second joint body one end periphery wall is slided and is arranged with insulating component and locking nut, insulating component is located between locking nut inwall and the external perisporium of the second junction block and is positioned by align member and fixes, locking nut one end is provided with internal thread and is threadedly coupled with external screw thread, and the locking nut other end is provided with the first inner conical surface；When the internal thread is connected with external screw thread, first inner conical surface pushing tow insulating component and second joint body one end insertion internal plug seat, pass through insulated enclosure back-up ring insulated enclosure between second joint body end face and internal plug seat sagittal plane, between second joint body one end periphery wall and internal plug seat axial face, and second joint body one end periphery wall, between the first joint body other end and the first inner conical surface by insulating component insulate.
Description
Technical field
It is used for instrument system pipeline, reliability the present invention relates to pipe-line wrapping accessory technical field, more particularly to one kind
Property small-sized insulating joint high.
Background technology
Instrument system pipeline is general by the component structure such as all kinds of measuring instruments, transmitter, instrument valve, pipe connecting piece
Into wherein measuring instrument, transmitter belong to electronic component can work, it is necessary to be powered；In system pipeline running,
There is the risk of electric leakage in various degree in all kinds of electronic components.In the system pipes in the fields such as oil, chemical industry, natural gas, electric power
Lu Zhong, is generally inflammable and explosive medium, if now being leaked electricity in the presence of a large amount of electrostatic or pipeline in system pipeline, then may be made
Into perils such as on fire, blasts, cause economic loss and personal security accident.
Insulating joint, while for connection system pipeline, also acts as the function of protection pipe-line system, its Main Function
Be by the measuring instrument of instrument system pipeline between pipeline, equipment isolate with mutually insulated between pipeline, blocking causes because of electric leakage
Electric current conduction, it is to avoid main line buildup of static electricity, so as to avoid instrument system pipeline potential safety hazard.
In actual use, the requirement that insulating joint is not dielectrically separated from only in instrument system pipeline, should also have close
The requirement of envelope and intensity.Existing insulating joint, its insulation function is generally realized by non-metal insulating material, thus resulted in
Its sealing and Intensity Design are difficult, poor reliability；Instrumentation pipeline insulating joint in the market, although the structure letter having
It is single, but its sealability and structural strength are poor, and what is had obtains very complicated to ensure performance by structure design, but its technology difficulty
Greatly, or even to cause maintenance difficulty big or cannot repair using special process such as welding, economy is low.
The content of the invention
The purpose of the present invention is to solve the shortcomings of the prior art, there is provided a kind of reasonable in design, simple structure, technology difficulty
It is small, good airproof performance, the insulating joint with high intensity and high reliability.
To achieve the above object, the present invention uses following technical scheme：
A kind of insulating joint, is applied to insulation two pressure pipelines of connection, and the insulating joint includes the first joint body and the
Two joint bodys, described first joint body one end and the second joint body other end connect two pressure pipelines, first respectively
The joint body other end is provided with external screw thread and internal plug seat, insulated enclosure back-up ring is provided with internal plug seat, outside second joint body one end
Slided on perisporium and be arranged with insulating component and locking nut, insulating component is all in vitro with the second junction block located at locking nut inwall
Between wall, and positioned by an align member and fixed, locking nut one end is provided with internal thread and is threadedly coupled with external screw thread, locking screw
Female other end is provided with the first inner conical surface being adapted with insulating component；When the internal thread is threadedly coupled with external screw thread, in first
Conical surface pushing tow insulating component and second joint body one end insertion internal plug seat, the second joint body end face and internal plug seat sagittal plane
Between insulate and seal by insulated enclosure back-up ring, by exhausted between second joint body one end periphery wall and internal plug seat axial face
Edge component one end is insulated, and is sealed by the sealing ring being provided with, and second joint body one end periphery wall, the first joint body are another
Insulated by insulating component between end face and the first inner conical surface of locking nut.
The insulating component includes dead ring and insulation sleeve, and the dead ring is L-shaped, and dead ring one end is used to insert interpolation
Hole, the sagittal plane of the dead ring other end one is used to be against the first joint body other end, and the insulation sleeve is taper, insulation sleeve
One end is used to be resisted against the dead ring other end, and the insulation sleeve other end is provided with axially-extending portion；The internal thread and external screw thread spiral shell
When line is connected, locking nut drives insulation sleeve to slide, and insulation sleeve one end is resisted against the dead ring other end, and pushing tow dead ring one end
Insertion internal plug seat, axially-extending portion stretches out the insulation locking nut other end with the locking nut other end and the second junction block of insulating
The periphery wall insulation of body one end.The design of the dead ring, while making it have insulation, buffer action, also with transmission coupling mechanism force
With the effect of positioning, and make itself and insulation sleeve one end fits, play the impurity such as the extraneous metallic particles of prevention, dust and connect into insulation
Cause structural damage in head or form conductive path；The design of insulation sleeve extension, allows it to avoid locking nut another
Cause conductive path because impurity piles up between one end and the external perisporium of the second junction block.
The internal plug seat porch of the first joint body is provided with 60 ° of chamfering structures, described dead ring one end and dead ring
The outer wall junction of the other end is provided with the transition face being adapted with the chamfering structure.The design enables that dead ring connects with first
Head tube body other end and internal plug seat entrance are contacted in half package status so that during locking nut is constantly tightened, absolutely
Edge ring one end can be gradually pressed between second joint body one end periphery wall and internal plug seat axial face, play insulating effect,
And produce good axially and radially positioning action.
The align member includes support conical ring and elastic spring, and the elastic spring is embedded in second joint body one end
In the circlip groove that periphery wall is provided with, the support conical ring is slidably located on second joint body one end periphery wall, for embedding
Put supports insulative and cover one end inwall, support conical ring one end is provided with interior locating slot；When the internal thread is threadedly coupled with external screw thread, lock
Tight nut drives insulation sleeve and support conical ring to slide, and interior positioning fluted shaft is located at outside elastic spring to surface cover, interior locating slot sagittal plane
It is against on elastic spring.
Described second joint body one end periphery wall is provided with the mating surface being adapted with dead ring one end inwall.
Described second joint body one end periphery wall is provided with the seal groove for installing sealing ring.
Described dead ring one end inwall is provided with the 3rd inner conical surface；3rd inner conical surface of the dead ring and shaft centre line into
30 ° of angles.The design causes that locking nut assembling is locked at when on the first joint body, can produce good positioning and fastening
Effect.
The first inner conical surface cone angle number of degrees of the locking nut are 40 °；The first outer cone face cone that the cone of support is equipped with
The second male cone (strobilus masculinus) cone angle number of degrees that angle number, insulation sleeve one end are provided with and the second inner conical surface number of degrees with the first of locking nut in
The conical surface cone angle number of degrees are identical.The active force when design can ensure locking uniformly points to axle center, so as to improve insulation
The stability of joint design.
Described insulation sleeve one end is inclined-plane with the contact surface of the dead ring other end.
The insulating component is molded by high-strength insulating material.The design makes it while insulating requirements are met, and also has
There is reliability higher, and its structure design is become simple.
The sealing ring is O-shaped rubber seal.
The present invention use above technical scheme, the design of insulated enclosure back-up ring, can to the second joint body end face with
Insulated and sealed between internal plug seat sagittal plane；The design of sealing ring, can to second joint body one end periphery wall with it is interior
Sealed between jack axial face；The design of internal plug seat, is used not only for accommodating insulated enclosure back-up ring and connection the of planting
Two joint body one end, and can with sealing ring coordinate for second joint body one end is carried out radial positioning with sealing with
And axial limiting is carried out to insulated enclosure back-up ring and dead ring；The design of insulating component, can be to second joint body one end outside
Between perisporium and internal plug seat axial face, and second joint body one end periphery wall, the first joint body other end and locking
Insulated between first inner conical surface of nut；The design of locking nut, can in locking nut gradually rundown process,
Cooperated between each parts of insulating joint, act synergistically, give full play to respective structural advantage so that insulating joint is gradually tight
Gather, so that it is guaranteed that with excellent insulating properties, with structural strength higher, sealing and reliability, and with higher
Economy and maintainability.Insulating joint of the invention is reasonable in design, simple structure, and without welding, technology difficulty is small, economy
Good, good airproof performance, with enough radial strength and axial strength, disclosure satisfy that the pressure testing intensity of 168MPa without damaging after tested
Bad, reliability is high, long service life, is applicable to the inflammable and explosive pipelines such as gas transmission and distribution pipeline, oil product conveyance conduit
Insulation connection.
Brief description of the drawings
In conjunction with accompanying drawing, the present invention is further elaborated：
Fig. 1 is the structural representation of insulating joint of the present invention；
Fig. 2 is the structural representation of the first joint body of the invention；
Fig. 3 is the structural representation of the second joint body of the invention；
Fig. 4 is the structural representation of locking nut of the present invention；
Fig. 5 is the structural representation of dead ring of the present invention；
Fig. 6 is the structural representation of insulation sleeve of the present invention；
Fig. 7 is the structural representation of present invention support conical ring.
Specific embodiment
As shown in one of Fig. 1-7, insulating joint of the invention is applied to insulation two pressure pipelines 71,72 of connection, described
Insulating joint includes the first joint body 1 and the second joint body 2, described one end of first joint body 1 and the second joint body 2
The other end connects two pressure pipelines 71,72 respectively, and the other end of the first joint body 1 is provided with external screw thread 11 and internal plug seat 12, interior
Insulated enclosure back-up ring 3 is provided with jack 12, is slided on one end periphery wall of the second joint body 2 and is arranged with insulating component 4 and locking
Nut 5, insulating component 4 is located between the inwall of locking nut 5 and the periphery wall of the second joint body 2, and is positioned by an align member 6
And it is fixed, the one end of locking nut 5 is provided with internal thread 51 and is threadedly coupled with external screw thread 11, and the other end of locking nut 5 is provided with and insulation
The first inner conical surface 52 that component 4 is adapted；When the internal thread 51 is threadedly coupled with external screw thread 11, the pushing tow of the first inner conical surface 52 is exhausted
Internal plug seat 12 is inserted in the one end of 4 and second joint body of edge component 2, the end face of the second joint body 2 and the sagittal plane of internal plug seat 12 it
Between insulate and seal by insulated enclosure back-up ring 3, pass through between one end periphery wall of the second joint body 2 and the axial face of internal plug seat 12
The one end of insulating component 4 is insulated, and is sealed by the sealing ring 6 being provided with, one end periphery wall of the second joint body 2, the first junction block
Insulated by insulating component 4 between the other end of body 1 and the first inner conical surface 52 of locking nut 5.
The insulating component 4 includes dead ring 41 and insulation sleeve 42, and the dead ring 41 is L-shaped, and the one end of dead ring 41 is used
In insertion internal plug seat 12, the sagittal plane 411 of 41 other end of dead ring one is used to be against the other end of the first joint body 1, described
Insulation sleeve 42 is taper, and the one end of insulation sleeve 42 is used to be resisted against the other end of dead ring 41, and the other end of insulation sleeve 42 is provided with axial direction
Extension 421；When the internal thread 51 is threadedly coupled with external screw thread 11, locking nut 5 drives insulation sleeve 42 to slide, insulation sleeve 42
One end is resisted against the other end of dead ring 41, and the one end of pushing tow dead ring 41 insertion internal plug seat 12, and axially-extending portion 421 stretches out insulation
The other end of locking nut 5 is with the other end of locking nut 5 and one end periphery wall insulation of the second joint body 2 of insulating.The dead ring
41 design, while making it have insulation, buffer action, also with transmission coupling mechanism force and positioning effect, and make its with it is exhausted
Edge covers 42 one end fits, play the impurity such as the extraneous metallic particles of prevention, dust into cause in insulating joint structural damage or
Person forms conductive path；The design of the extension of insulation sleeve 42, allows it to avoid the other end of locking nut 5 and the second joint body
Cause conductive path because impurity piles up between 2 periphery walls.
The porch of internal plug seat 12 of the first joint body 1 is provided with 60 ° of chamfering structures 13, the one end of the dead ring 41 with
The outer wall junction of the other end of dead ring 41 is provided with the transition face 412 being adapted with the chamfering structure 13.The design causes insulation
Ring 41 can be contacted with the other end of the first joint body 1 and the entrance of internal plug seat 12 in half package status so that in locking nut 5
During constantly tightening, the one end of dead ring 41 can gradually be pressed in one end periphery wall of the second joint body 2 and internal plug seat
Between 12 axial faces, insulating effect is played, and produce good axially and radially positioning action.
The align member 6 includes support conical ring 61 and elastic spring 62, and the elastic spring 62 is embedded in the second joint
In the circlip groove 21 that one end periphery wall of body 2 is provided with, the support conical ring 61 is slidably located in outside the one end of the second joint body 2
On perisporium, 42 one end inwalls are covered for setting supports insulative, support conical ring 61 one end is provided with interior locating slot 611；The internal thread
51 with external screw thread 11 when being threadedly coupled, and locking nut 5 drives insulation sleeve 42 and support conical ring 61 to slide, and interior locating slot 611 is axially
Surface cover is located at outside elastic spring 62, and the sagittal plane of interior locating slot 611 is against on elastic spring 62.
One end periphery wall of second joint body 2 is provided with the mating surface 22 being adapted with one end inwall of dead ring 41.
One end periphery wall of second joint body 2 is provided with the seal groove 23 for installing sealing ring 6.
One end inwall of the dead ring 41 is provided with the 3rd inner conical surface 413；3rd inner conical surface 413 and axle of the dead ring 41
Center line is into 30 ° of angles.The design causes that locking nut 5 is assembled and is locked at when on the first joint body 1, can produce good
Positioning and fastening effect.
The cone angle number of degrees of first inner conical surface 52 of the locking nut 5 are 40 °；The first outer cone that the support conical ring 61 is provided with
The cone angle number of degrees of the second male cone (strobilus masculinus) 422 and the cone angle number of degrees of the second inner conical surface 423 that the cone angle number of degrees of face 611, the one end of insulation sleeve 42 are provided with
The cone angle number of degrees of the first inner conical surface 52 with locking nut 5 are identical.The active force when design can ensure to lock is uniform
Axle center is pointed to, so as to improve the stability of insulating joint structure.
The one end of the insulation sleeve 42 is inclined-plane with the contact surface of the other end of dead ring 41.
The insulating component 4 is molded by high-strength insulating material.The design makes it while insulating requirements are met, and also has
There is reliability higher, and its structure design is become simple.
The sealing ring 6 is O-shaped rubber seal.
The present invention uses above technical scheme, and the design of insulated enclosure back-up ring 3 can be to the end face of the second joint body 2
Insulated and sealed between the sagittal plane of internal plug seat 12；The design of sealing ring 6, can be to one end periphery of the second joint body 2
Sealed between wall and the axial face of internal plug seat 12；The design of internal plug seat 12, is used not only for the accommodating He of insulated enclosure back-up ring 3
Plant and connect the one end of the second joint body 2, and can coordinate for entering conduct to the one end of the second joint body 2 with sealing ring 6
To positioning axial limiting is carried out with sealing and to insulated enclosure back-up ring 3 and dead ring 41；The design of insulating component 4, can be right
Between one end periphery wall of second joint body 2 and the axial face of internal plug seat 12, and one end periphery wall of the second joint body 2, first
Insulated between the other end of joint body 1 and the first inner conical surface 52 of locking nut 5；The design of locking nut 5, can
Enough in locking nut 5 gradually rundown process, cooperated between each parts of insulating joint, acted synergistically, given full play to respectively
Self-structure advantage so that insulating joint is gradually compact, so that it is guaranteed that with excellent insulating properties, it is strong with structure higher
Degree, sealing and reliability, and with economy and maintainability higher.Insulating joint of the invention is reasonable in design, structure letter
Single, without welding, technology difficulty is small, good economy performance, good airproof performance, with enough radial strength and axial strength, after tested
The pressure testing intensity of 168MPa be disclosure satisfy that without damaging, reliability is high, and long service life is applicable to such as gas transmission and distribution pipe
The insulation connection of the inflammable and explosive pipelines such as line, oil product conveyance conduit.
Above description should not have any restriction to protection scope of the present invention.
Claims (10)
1. a kind of insulating joint, is applied to insulation two pressure pipelines of connection, it is characterised in that：The insulating joint includes first
Joint body and the second joint body, described first joint body one end and the second joint body other end connect two pressures respectively
Hydraulic piping, the first joint body other end is provided with external screw thread and internal plug seat, and insulated enclosure back-up ring, the second joint are provided with internal plug seat
Slided on the periphery wall of body one end and be arranged with insulating component and locking nut, insulating component connects located at locking nut inwall with second
Between the external perisporium of head tube, and positioned by an align member and fixed, locking nut one end is provided with internal thread and external screw thread screw thread
Connection, the locking nut other end is provided with the first inner conical surface being adapted with insulating component；The internal thread connects with external screw thread screw thread
When connecing, the first inner conical surface pushing tow insulating component and second joint body one end insertion internal plug seat, the second joint body end face with
Insulate and seal by insulated enclosure back-up ring between internal plug seat sagittal plane, second joint body one end periphery wall and internal plug seat axial direction
Insulated by insulating component one end between face, and sealed by the sealing ring being provided with, second joint body one end periphery wall, first
Insulated by insulating component between joint body other end and the first inner conical surface of locking nut.
2. a kind of insulating joint according to claim 1, it is characterised in that：The insulating component includes dead ring and insulation
Set, the dead ring is L-shaped, and dead ring one end is used to insert internal plug seat, and the sagittal plane of the dead ring other end one is used to be against first
On joint body other end, the insulation sleeve is taper, and insulation sleeve one end is used to be resisted against the dead ring other end, insulation sleeve
The other end is provided with axially-extending portion；When the internal thread is threadedly coupled with external screw thread, locking nut drives insulation sleeve to slide, insulation
Set one end is resisted against the dead ring other end, and pushing tow dead ring one end insertion internal plug seat, and axially-extending portion stretches out insulation locking screw
Female other end is with the locking nut other end and the second joint body one end periphery wall insulation of insulating.
3. a kind of insulating joint according to claim 2, it is characterised in that：The internal plug seat entrance of the first joint body
Place is provided with 60 ° of chamfering structures, and described dead ring one end is provided with and the chamfering structure phase with the outer wall junction of the dead ring other end
The transition face of adaptation.
4. a kind of insulating joint according to claim 2, it is characterised in that：The align member includes support conical ring and steel
Silk back-up ring, the elastic spring is embedded in the circlip groove that second joint body one end periphery wall is provided with, the support conical ring
It is slidably located on second joint body one end periphery wall, one end inwall is covered for setting supports insulative, support conical ring one end sets
There is interior locating slot；When the internal thread is threadedly coupled with external screw thread, locking nut drives insulation sleeve and support conical ring to slide, default
Position fluted shaft is located at outside elastic spring to surface cover, and interior locating slot sagittal plane is against on elastic spring.
5. a kind of insulating joint according to claim 4, it is characterised in that：On the periphery wall of described second joint body one end
It is provided with the mating surface being adapted with dead ring one end inwall.
6. a kind of insulating joint according to claim 5, it is characterised in that：Described dead ring one end inwall is provided with the 3rd
The conical surface.
7. a kind of insulating joint according to claim 6, it is characterised in that：In 3rd inner conical surface and axle of the dead ring
Heart line is into 30 ° of angles.
8. a kind of insulating joint according to claim 4, it is characterised in that：First inner conical surface cone angle of the locking nut
The number of degrees are 40 °.
9. a kind of insulating joint according to claim 8, it is characterised in that：The first male cone (strobilus masculinus) that the cone of support is equipped with
The second male cone (strobilus masculinus) cone angle number of degrees that the cone angle number of degrees, insulation sleeve one end are provided with and the second inner conical surface cone angle number of degrees with locking nut
The first inner conical surface cone angle number of degrees are identical.
10. a kind of insulating joint according to claim 1, it is characterised in that：The insulating component is by high-strength insulating material
Material shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209419.1A CN106764164B (en) | 2017-03-31 | 2017-03-31 | A kind of insulating joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209419.1A CN106764164B (en) | 2017-03-31 | 2017-03-31 | A kind of insulating joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106764164A true CN106764164A (en) | 2017-05-31 |
| CN106764164B CN106764164B (en) | 2019-01-01 |
Family
ID=58965728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710209419.1A Active CN106764164B (en) | 2017-03-31 | 2017-03-31 | A kind of insulating joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106764164B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723922A (en) * | 2017-10-27 | 2019-05-07 | 北京精密机电控制设备研究所 | A kind of fluid connecting device of both ends insulation |
| CN110208648A (en) * | 2019-05-28 | 2019-09-06 | 国家电网有限公司 | A kind of seal for electric field preventing ground fault |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB527999A (en) * | 1939-04-25 | 1940-10-21 | Patex Sa | Improvements in and relating to pipe couplings |
| JPS60192190A (en) * | 1984-03-14 | 1985-09-30 | 株式会社日立製作所 | Insulating joint pipe |
| JPH10311474A (en) * | 1997-05-09 | 1998-11-24 | Taiheiyo Tokushu Chuzo Kk | Expansible, contractible and flexible insulating pipe coupling |
| JP3051839B1 (en) * | 1999-04-16 | 2000-06-12 | 大平洋特殊鋳造株式会社 | Telescopic and flexible insulated pipe fittings |
| CN2591374Y (en) * | 2002-12-14 | 2003-12-10 | 邹德润 | Corrosion resistant insulation pipe joint |
| CN2634240Y (en) * | 2003-06-04 | 2004-08-18 | 沈阳鑫联石化设备有限公司 | Insulation joint |
| CN2812318Y (en) * | 2005-05-17 | 2006-08-30 | 成都市川油科技发展有限公司 | Insulated connector for pipe line of cathodic-protection anticorrosive high-pressure gas storage well |
| CN206626304U (en) * | 2017-03-31 | 2017-11-10 | 福建上润精密仪器有限公司 | A kind of insulating joint |
-
2017
- 2017-03-31 CN CN201710209419.1A patent/CN106764164B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB527999A (en) * | 1939-04-25 | 1940-10-21 | Patex Sa | Improvements in and relating to pipe couplings |
| JPS60192190A (en) * | 1984-03-14 | 1985-09-30 | 株式会社日立製作所 | Insulating joint pipe |
| JPH10311474A (en) * | 1997-05-09 | 1998-11-24 | Taiheiyo Tokushu Chuzo Kk | Expansible, contractible and flexible insulating pipe coupling |
| JP3051839B1 (en) * | 1999-04-16 | 2000-06-12 | 大平洋特殊鋳造株式会社 | Telescopic and flexible insulated pipe fittings |
| CN2591374Y (en) * | 2002-12-14 | 2003-12-10 | 邹德润 | Corrosion resistant insulation pipe joint |
| CN2634240Y (en) * | 2003-06-04 | 2004-08-18 | 沈阳鑫联石化设备有限公司 | Insulation joint |
| CN2812318Y (en) * | 2005-05-17 | 2006-08-30 | 成都市川油科技发展有限公司 | Insulated connector for pipe line of cathodic-protection anticorrosive high-pressure gas storage well |
| CN206626304U (en) * | 2017-03-31 | 2017-11-10 | 福建上润精密仪器有限公司 | A kind of insulating joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723922A (en) * | 2017-10-27 | 2019-05-07 | 北京精密机电控制设备研究所 | A kind of fluid connecting device of both ends insulation |
| CN110208648A (en) * | 2019-05-28 | 2019-09-06 | 国家电网有限公司 | A kind of seal for electric field preventing ground fault |
| CN110208648B (en) * | 2019-05-28 | 2024-04-09 | 国家电网有限公司 | Insulation device for preventing ground fault on electric power site |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106764164B (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201884831U (en) | Joint structure of two-way sealing pipe | |
| US3700268A (en) | Positive locking terminal bushings for flexible pipe | |
| CN110455634B (en) | Self-sealing pressure test joint | |
| CN106764164B (en) | A kind of insulating joint | |
| CN207005285U (en) | A kind of rubber seal with inner liner metal skeleton | |
| CN105090648A (en) | Joint connecting device of corrugated stainless steel hose for connection of gas appliance | |
| CN103383029A (en) | Fast pipeline connection device | |
| CN206626304U (en) | A kind of insulating joint | |
| CN209012587U (en) | Pipe fitting and high-pressure gas pipelines attachment device | |
| CN203604863U (en) | Clamp-type end-face seal pipe joint with leakage hole | |
| CN210424053U (en) | Composite sealing pipeline connecting piece | |
| US3517950A (en) | Insulating pipe union | |
| CN208539259U (en) | A kind of detachable deepwater seal connector | |
| CN202383056U (en) | High pressure and corrosion resistance probe installation device | |
| CN213636965U (en) | Connecting device for packaging pipe cable | |
| CN205938255U (en) | Take threaded connection structure of coating steel pipe with anti - corrosion feature | |
| CN103899859B (en) | Secondary seal pipe joint and cutting ferrule thereof | |
| CN108361456A (en) | Explosion-proof multifrnction connector and its installation method | |
| KR20100077883A (en) | An assembly for pressed o-ring type one touch pipe joint | |
| CN213040019U (en) | Pipeline connecting and sealing device for conveying fluid | |
| CN210142732U (en) | Equipotential connecting piece for pipeline | |
| CN204922281U (en) | Gas seal for pipe joints structure | |
| CN108051288A (en) | A kind of PE pipelines pressue device and method | |
| CN208185695U (en) | Explosion-proof multifrnction connector | |
| CN202696080U (en) | Stainless-steel anti-explosion seal gland |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |