CN108612938A - A kind of double-sealing device for automobile engine mesohigh pipeline - Google Patents
A kind of double-sealing device for automobile engine mesohigh pipeline Download PDFInfo
- Publication number
- CN108612938A CN108612938A CN201810669075.7A CN201810669075A CN108612938A CN 108612938 A CN108612938 A CN 108612938A CN 201810669075 A CN201810669075 A CN 201810669075A CN 108612938 A CN108612938 A CN 108612938A
- Authority
- CN
- China
- Prior art keywords
- pier nose
- ring flange
- locking nut
- switching device
- automobile engine
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 28
- 230000013011 mating Effects 0.000 claims abstract description 18
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 230000003044 adaptive effect Effects 0.000 abstract description 4
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
- F16L23/22—Flanged joints characterised by the sealing means the sealing means being rings made exclusively of a material other than metal
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
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 pipeline joint sealing devices, and in particular to a kind of double-sealing device for automobile engine mesohigh pipeline, including pier nose formula switching device, double thread connector, locking nut, ring flange A and ring flange B.Pier nose formula switching device just forms after locking nut screwing the relationship that dual-seal is connect with double thread connector, shrinkage pool and pier nose form first sealing, secondary seal is formed between spherical steps and protrusion, adaptive ability is strong between mating surface, to reduce tubing leak risk.Ring flange A and ring flange B play reinforcement locking function to locking nut, ensure the sealing effect between pier nose formula switching device and double thread connector, after long-time use, it can play the role of fine tuning again, there is risk of leakage after preventing long-time use, it can be matched again with rubber sheet gasket, locking nut both ends is made to play the effect for reinforcing sealing.
Description
Technical field
The present invention relates to a kind of pipeline joint sealing devices, and in particular to a kind of for automobile engine mesohigh pipeline
Double-sealing device.
Background technology
The pressure duct operating pressure of new hybrid vehicles requires higher and higher, the wind that pipeline leaks at this stage
Danger also increases therewith.Traditional pressure duct is connect by the way of conical surface seal with flared type double thread connector, the disadvantage is that
The adaptive ability of conical surface pier nose is poor, is easy to happen leakage.
Patent CN2007200132769 provides the mechanism that machinery field is connected with each other for conveying the pipeline of substance,
Specifically pressure duct sealing and connecting device and seal washer.Seal chamber connecting tube and sealing ring connecting tube pass through adapter sleeve
It is fastenedly connected, gasket is installed in the cavity between the seal chamber and sealing ring connecting tube sealing ring of seal chamber connecting tube
Circle.It is equipped with plastic deformability by being combined with each other in constituted cavity in seal chamber connecting tube and sealing ring connecting tube
The seal washer of energy simultaneously makes connecting tube be connected with each other by adapter sleeve, good seal performance, and the expansion of sealed end high temperature resistant and height
Pressure impact, and it is convenient and efficient to dismount combination.So being used suitable for various piping connections, high temperature and high pressure conditions lower pipeline preferably
It is used in sealed connection.
Patent CN203463833U discloses a kind of seal assembly for high temperature and high pressure gas pipeline joint, including：For
The globe joint of ducted body, one end are in bulb shape, which is provided with the convex shoulder for housing sealing ring, the other end and a wherein high temperature
Pressure duct is connected to；For the pressure inlet of ducted body, one end end periphery is equipped with external screw thread, which is provided with and globe joint
Bulb cooperation shrinkage pool, the other end and high temperature and pressure pipeline connection；For the cap nut of hollow cylinder, inner wall surface thereof is equipped with interior
Screw thread, coaxial package is outside globe joint；When Butt sealing, clamping in the shrinkage pool of the bulb insertion mouthpiece tube of globe joint makes
It obtains the bulb and is mutually squeezed with shrinkage pool and form linear sealing, and pass through the external screw thread spiral shell of the internal thread of cap nut and mouthpiece tube
Conjunction screws, to Butt sealing.The utility model can carry out dual-seals to 1000 DEG C of high pressure gas below, to room temperature and
Elevated-temperature seal it is adaptable, can be used for docking the pipeline for being related to high temperature and high pressure gas.
Above-mentioned two patent has been all made of curved surface pier nose and has been connected with flared type double thread connector, improves traditional technology
Middle conical surface pier nose and flared type double thread connector adaptive ability are poor, the shortcomings that being easy to happen leakage.But at present existing
Technology still has defect, and since the sealing device is chronically in high temperature and high pressure environment, after long-time use, interface is answered
The problem of power abrasion still will appear leakage, always affect the service life problem of the workpiece.
Invention content
According to the above-mentioned deficiencies of the prior art, the present invention provides a kind of for the dual close of automobile engine mesohigh pipeline
Seal apparatus has the characteristics that simple in structure, leakproofness is strong, with long service life.
A kind of double-sealing device for automobile engine mesohigh pipeline of the present invention, it is characterised in that：Packet
Include pier nose formula switching device, double thread connector, locking nut, ring flange A and ring flange B, wherein the pier nose formula switching device
Include the tube body with hollow structure, there is pier nose structure, the other end to be connected with pressure duct for tube body one end end, the pier
The tail end of head has spherical steps；The double thread connector has hollow structure, and wherein one end end face is offered turns with pier nose formula
The shrinkage pool of the pier nose cooperation of connection device, has between the shrinkage pool and pier nose and the mating surface that the two relatively rotates can be achieved, the end
Ring flange A is set on external screw thread；The locking nut coaxial package on the tube body of pier nose formula switching device, locking nut
Internal thread is matched with double thread connector, and one end far from pier nose is provided with protrusion on the locking nut inner wall, and described convex
It is the conical surface to rise with the mating surface of spherical steps, and side of the locking nut far from pier nose is provided with ring flange B, the ring flange
For B coaxial packages on the tube body of pier nose formula switching device, the ring flange A and ring flange B pass through bolt phase secure fit.
The ring flange A ring flanges B is provided with rubber sheet gasket in the mating surface of locking nut respectively.
In the present invention, the cooperation of ring flange A and ring flange B primarily serve three effects, add first, being played to locking nut
Strong locking function ensures the sealing effect between pier nose formula switching device and double thread connector；Second is that after long-time use,
Play the role of fine tuning, by the bolt between regulating flange disk A and ring flange B, reinforce the locking function of locking nut again,
There is risk of leakage after preventing long-time use；Third, being matched with rubber sheet gasket, locking nut both ends is made to play reinforcement sealing
Effect.
In order to realize the angular turn between pier nose formula switching device and double thread connector, the present invention provides three kinds of technologies
Scheme：
First, the shrinkage pool is flared type, conical surface angle is 56~89 degree, and the front end of pier nose is involute pier nose face.
Second is that the shrinkage pool is flared type, conical surface angle is 56~89 degree, and the front end of pier nose is oval pier nose face.
Third, the shrinkage pool is embedded spherical surface, the front end of pier nose is spherical pier nose face.
The protrusion and the mating surface of spherical steps are the conical surface, and conical surface angle is 43~89 degree.
The pier nose formula switching device, double thread connector, locking nut are all made of titanium alloy material and are made.
The advantage of the invention is that：Pier nose formula switching device just forms with double thread connector after locking nut screwing double
The relationship of resealing connection, shrinkage pool and pier nose form first sealing, form secondary seal, mating surface between spherical steps and protrusion
Between adaptive ability it is strong, to reduce tubing leak risk.Ring flange A and ring flange B plays reinforcement locking to locking nut
Function ensures the sealing effect between pier nose formula switching device and double thread connector, after long-time use, and can play micro-
There is risk of leakage after preventing long-time use, and can be matched with rubber sheet gasket in the effect of tune, and locking nut both ends is made to play
Reinforce the effect of sealing.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of embodiment 2；
In figure：1, pier nose formula switching device；2, double thread connector；3, locking nut；4, ring flange A；5, ring flange B；6、
Pier nose；7, shrinkage pool；8, spherical steps；9, raised；10, rubber sheet gasket.
Specific implementation mode
The following further describes the present invention in combination with the embodiments and the accompanying drawings.
Embodiment 1：
As shown in Figure 1, a kind of double-sealing device for automobile engine mesohigh pipeline, including pier nose formula switching dress
Set 1, double thread connector 2, locking nut 3, ring flange A4 and ring flange B5, wherein the pier nose formula switching device 1 includes having
There is 6 structure of pier nose, the other end to be connected with pressure duct for the tube body of hollow structure, tube body one end end, the tail of the pier nose 6
End has spherical steps 8；There is the double thread connector 2 hollow structure, wherein one end end face to offer to transfer with pier nose formula and fill
The shrinkage pool 7 that 1 pier nose 6 coordinates is set, has between the shrinkage pool 7 and pier nose 6 and the mating surface that the two relatively rotates can be achieved, the end
Ring flange A4 is set on external screw thread；3 coaxial package of the locking nut is on the tube body of pier nose formula switching device 1, locking screw
The internal thread of mother 3 is matched with double thread connector 2, and one end far from pier nose 6 on 3 inner wall of the locking nut is provided with protrusion 9,
And described raised 9 be the conical surface with the mating surfaces of spherical steps 8, side of the locking nut 3 far from pier nose 6 is provided with ring flange
B5, for the ring flange B5 coaxial packages on the tube body of pier nose formula switching device 1, the ring flange A4 and ring flange B5 pass through spiral shell
Bolt phase secure fit.
Wherein, the ring flange A4 ring flanges B5 respectively with rubber sheet gasket 10 is provided in the mating surface of locking nut 3.
The shrinkage pool 7 is flared type, and conical surface angle is 65 degree, and the front end of pier nose 6 is involute pier nose face.
Described raised 9 with the mating surfaces of spherical steps 8 be the conical surface, and conical surface angle is 55 degree.
The pier nose formula switching device 1, double thread connector 2, locking nut 3 are all made of titanium alloy material and are made.
It is worth noting that, the front end of pier nose is using oval pier nose face in another scheme of the present invention, due to oval bent
Line and involute are approximate, therefore can be carried out according to actual needs when specific processing, no longer do Additional examples of composition and individually describe
The case where front end of pier nose is using oval pier nose face.
Embodiment 2：
Such as Fig. 2, a kind of double-sealing device for automobile engine mesohigh pipeline, including pier nose formula switching device 1,
Double thread connector 2, locking nut 3, ring flange A4 and ring flange B5, wherein the pier nose formula switching device 1 includes with hollow
There is 6 structure of pier nose, the other end to be connected with pressure duct for the tube body of structure, tube body one end end, the tail end tool of the pier nose 6
There are spherical steps 8；The double thread connector 2 has hollow structure, and wherein one end end face offers and pier nose formula switching device 1
The shrinkage pool 7 that pier nose 6 coordinates has between the shrinkage pool 7 and pier nose 6 and the mating surface that the two relatively rotates can be achieved, spiral shell outside the end
Ring flange A4 is set on line；3 coaxial package of the locking nut on the tube body of pier nose formula switching device 1, locking nut 3
Internal thread is matched with double thread connector 2, and one end far from pier nose 6 on 3 inner wall of the locking nut is provided with protrusion 9, and institute
It is the conical surface to state protrusion 9 and the mating surface of spherical steps 8, and side of the locking nut 3 far from pier nose 6 is provided with ring flange B5,
For the ring flange B5 coaxial packages on the tube body of pier nose formula switching device 1, the ring flange A4 and ring flange B5 pass through bolt
Phase secure fit.
Wherein, the ring flange A4 ring flanges B5 respectively with rubber sheet gasket 10 is provided in the mating surface of locking nut 3.
The shrinkage pool 7 is embedded spherical surface, and the front end of pier nose 6 is spherical pier nose face.
Described raised 9 with the mating surfaces of spherical steps 8 be the conical surface, and conical surface angle is 55 degree.
The pier nose formula switching device 1, double thread connector 2, locking nut 3 are all made of titanium alloy material and are made.
Claims (7)
1. a kind of double-sealing device for automobile engine mesohigh pipeline, it is characterised in that：It transfers and fills including pier nose formula
It sets, double thread connector, locking nut, ring flange A and ring flange B, wherein the pier nose formula switching device includes having hollow knot
There is pier nose structure, the other end to be connected with pressure duct for the tube body of structure, tube body one end end, and the tail end of the pier nose has ball
Shape step；The double thread connector has hollow structure, and wherein one end end face is offered matches with the pier nose of pier nose formula switching device
The shrinkage pool of conjunction has between the shrinkage pool and pier nose and the mating surface that the two relatively rotates can be achieved, is set on the end external screw thread
Ring flange A；The locking nut coaxial package is on the tube body of pier nose formula switching device, the internal thread and double thread of locking nut
Connector matches, and one end far from pier nose is provided with protrusion, and the protrusion and spherical steps on the locking nut inner wall
Mating surface is the conical surface, and side of the locking nut far from pier nose is provided with ring flange B, and the ring flange B coaxial packages are in pier
On the tube body of hair style switching device, the ring flange A and ring flange B pass through bolt phase secure fit.
2. a kind of secondary sealer for automobile engine mesohigh pipeline according to claim 1, feature exist
In：The ring flange A ring flanges B is provided with rubber sheet gasket in the mating surface of locking nut respectively.
3. a kind of secondary sealer for automobile engine mesohigh pipeline according to claim 1, feature exist
In：The shrinkage pool is flared type, and conical surface angle is 56~89 degree, and the front end of pier nose is involute pier nose face.
4. a kind of secondary sealer for automobile engine mesohigh pipeline according to claim 1, feature exist
In：The shrinkage pool is flared type, and conical surface angle is 56~89 degree, and the front end of pier nose is oval pier nose face.
5. a kind of secondary sealer for automobile engine mesohigh pipeline according to claim 1, feature exist
In：The shrinkage pool is embedded spherical surface, and the front end of pier nose is spherical pier nose face.
6. a kind of secondary sealer for automobile engine mesohigh pipeline according to claim 1,3,4 or 5,
It is characterized in that：The protrusion and the mating surface of spherical steps are the conical surface, and conical surface angle is 43~89 degree.
7. a kind of secondary sealer for automobile engine mesohigh pipeline according to claim 1, feature exist
In：The pier nose formula switching device, double thread connector, locking nut are all made of titanium alloy material and are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669075.7A CN108612938A (en) | 2018-06-21 | 2018-06-21 | A kind of double-sealing device for automobile engine mesohigh pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810669075.7A CN108612938A (en) | 2018-06-21 | 2018-06-21 | A kind of double-sealing device for automobile engine mesohigh pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108612938A true CN108612938A (en) | 2018-10-02 |
Family
ID=63665758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810669075.7A Pending CN108612938A (en) | 2018-06-21 | 2018-06-21 | A kind of double-sealing device for automobile engine mesohigh pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459194A (en) * | 2018-11-16 | 2019-03-12 | 江苏腾驰科技有限公司 | Automobile engine high pressure pipeline globe joint tightness measuring device and application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH526066A (en) * | 1970-12-16 | 1972-07-31 | Guido Juergen Dipl Ing | Pressure line connection with pressure line nipple, counterpart and union nut |
| JPH10122454A (en) * | 1996-10-15 | 1998-05-15 | Usui Internatl Ind Co Ltd | Connected head part structure of high pressure fuel injection pipe |
| DE20204506U1 (en) * | 2002-03-21 | 2002-05-29 | Voss Fluid GmbH + Co. KG, 51688 Wipperfürth | DKO pipe fitting |
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| CA2615294A1 (en) * | 2007-12-19 | 2009-06-19 | Stinger Wellhead Protection, Inc. | Threaded union for tubulars used in high-pressure fluid applications |
| CN202532055U (en) * | 2012-05-03 | 2012-11-14 | 东风汽车有限公司 | Spherical pier head structure of high-pressure oil pipe |
| CN104565623A (en) * | 2014-12-22 | 2015-04-29 | 洛阳能源密封件有限公司 | Vibration-resistant sealing structure |
| CN204372396U (en) * | 2015-01-06 | 2015-06-03 | 湖北三江航天红阳机电有限公司 | A kind of doubly-closed tube pipeline connector |
| CN105240632A (en) * | 2015-11-03 | 2016-01-13 | 南车长江车辆有限公司 | Braking piping system sealing device for railway vehicle |
| CN206377388U (en) * | 2017-01-04 | 2017-08-04 | 杭州彰钰不锈钢有限公司 | A kind of three-way pipe |
| CN207334020U (en) * | 2017-08-03 | 2018-05-08 | 中车唐山机车车辆有限公司 | A kind of pipeline connecting parts |
| CN108006340A (en) * | 2017-11-30 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of preparation method of the pipe seal part used under high temperature |
| CN208535385U (en) * | 2018-06-21 | 2019-02-22 | 江苏腾驰科技有限公司 | A kind of double-sealing device for automobile engine mesohigh pipeline |
-
2018
- 2018-06-21 CN CN201810669075.7A patent/CN108612938A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH526066A (en) * | 1970-12-16 | 1972-07-31 | Guido Juergen Dipl Ing | Pressure line connection with pressure line nipple, counterpart and union nut |
| JPH10122454A (en) * | 1996-10-15 | 1998-05-15 | Usui Internatl Ind Co Ltd | Connected head part structure of high pressure fuel injection pipe |
| DE20204506U1 (en) * | 2002-03-21 | 2002-05-29 | Voss Fluid GmbH + Co. KG, 51688 Wipperfürth | DKO pipe fitting |
| JP2008082441A (en) * | 2006-09-27 | 2008-04-10 | Sumitomo Electric Ind Ltd | Pipe connecting structure |
| CA2615294A1 (en) * | 2007-12-19 | 2009-06-19 | Stinger Wellhead Protection, Inc. | Threaded union for tubulars used in high-pressure fluid applications |
| CN202532055U (en) * | 2012-05-03 | 2012-11-14 | 东风汽车有限公司 | Spherical pier head structure of high-pressure oil pipe |
| CN104565623A (en) * | 2014-12-22 | 2015-04-29 | 洛阳能源密封件有限公司 | Vibration-resistant sealing structure |
| CN204372396U (en) * | 2015-01-06 | 2015-06-03 | 湖北三江航天红阳机电有限公司 | A kind of doubly-closed tube pipeline connector |
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| CN108006340A (en) * | 2017-11-30 | 2018-05-08 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of preparation method of the pipe seal part used under high temperature |
| CN208535385U (en) * | 2018-06-21 | 2019-02-22 | 江苏腾驰科技有限公司 | A kind of double-sealing device for automobile engine mesohigh pipeline |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459194A (en) * | 2018-11-16 | 2019-03-12 | 江苏腾驰科技有限公司 | Automobile engine high pressure pipeline globe joint tightness measuring device and application method |
| CN109459194B (en) * | 2018-11-16 | 2020-06-09 | 江苏腾驰科技有限公司 | Device for testing sealing performance of spherical joint of high-pressure pipeline of automobile engine and using method |
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