CN109099235A - Compound seal flared fitting and encapsulating method - Google Patents
Compound seal flared fitting and encapsulating method Download PDFInfo
- Publication number
- CN109099235A CN109099235A CN201710474173.0A CN201710474173A CN109099235A CN 109099235 A CN109099235 A CN 109099235A CN 201710474173 A CN201710474173 A CN 201710474173A CN 109099235 A CN109099235 A CN 109099235A
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- conical surface
- conduit
- fitting
- seal
- 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
- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 238000012856 packing Methods 0.000 claims abstract description 24
- 239000003292 glue Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000013011 mating Effects 0.000 claims abstract description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 12
- 229910052751 metal Inorganic materials 0.000 abstract description 12
- 230000008439 repair process Effects 0.000 abstract description 3
- 230000003746 surface roughness Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 4
- 241001232809 Chorista Species 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000004590 silicone sealant 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- 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
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
- F16L15/008—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to compound seal flared fitting and encapsulating methods, including are mainly made of pipe fitting, conduit, hydraulic packing cushion rubber and liquid glue；Pipe fitting both ends are equipped with joint body, and pipe fitting is equipped with the circular cone in taper-face contact face, and conduit is equipped with the round conical surface of flaring and the round conical surface seal of pipe fitting cooperates, and the filling of hydraulic packing cushion rubber is located among the pipe fitting conical surface and conduit conical surface seal mating surface；It solves the leakage come in metal sealing by form error and surface roughness higher band, and then realizes the reliable sealing of pipe fitting and conduit, there is good seal performance, repair feature easy to use, at low cost, reuse rate is high.
Description
Technical field
The present invention relates to fluid pressure line sealing system technical fields, more specifically refer to compound seal flared fitting
And encapsulating method.
Background technique
Now with the development of science and technology of aviation, domestic connect at present in flared type metal hydraulic pipeline (thin-wallconduit) is
In subordination system, 74 ° of flared fittings are widely used, due to the structure design reasons of pipe fitting, the flared type pipe are caused to connect
Head poor sealing performance, when pipe-line system being made to work, hydraulic oil or gas leakage situation are serious, cause hydraulic pressure of pipe line decline of pressure,
Environment is polluted, and easily forms accident, seriously affects the normal operation of aircraft and hydraulic device.
All it is metal sealing since existing pipe fitting couples sealing with the cap nut of conduit, really uses and use metal and bullet
Property liquid airproof is seldom.
Therefore, it is necessary to develop compound seal flared fitting and encapsulating method.
Summary of the invention
Present invention aims to overcome that the defect of the prior art, provides compound seal flared fitting and encapsulating method,
Guarantee pipe seal performance, to achieve the above object, the invention adopts the following technical scheme:
Compound seal flared fitting and encapsulating method of the present invention, including mainly have pipe fitting, conduit, hydraulic packing glue
Circle and liquid glue composition；The pipe fitting both ends are equipped with joint body, and the pipe fitting is equipped with the round cone in taper-face contact face
Body, the conduit are equipped with the round conical surface seal cooperation for being flared the round conical surface and pipe fitting, the hydraulic packing cushion rubber filler
Among the pipe fitting conical surface and conduit conical surface seal mating surface；
The compound seal flared fitting and encapsulating method are as follows:
A., hydraulic packing cushion rubber is placed on to the medium position of pipe fitting, with pipe fitting circular conical surface tight fit；
B. the circumferential surface that the top conical surface of hydraulic packing cushion rubber is cased in pipe fitting is uniformly coated with liquid glue；
C. the joint body of the cap nut of conduit and pipe fitting is threadedly engaged and is tightened；
When d. tightening conduit and pipe fitting, after screwing energetically, continues to squeeze hydraulic packing cushion rubber to the conical surface, screw completely
It cannot move forward, keep not loosening for 5 minutes in squeezed state；
E. pipe fitting and conduit end face are compressed with static pressure machine again, and just using pipe after liquid glue bonds 24 hours completely
Connector；
F. above step is repeated to tighten the pipe fitting other end with conduit.
Further scheme is that the joint body is equipped with screw thread and the cap nut locking screw of catheter port cooperates.
Further scheme is that the conical surface of the pipe fitting is 74 ° of circular cones.
Further scheme is that the hydraulic packing cushion rubber is intermediate empty ultra-thin circular conical surface, the circle being placed among pipe fitting
Conical surface tight fit.
Further scheme is that the hydraulic packing cushion rubber can be squeezed and deformed filling pipe fitting and the conduit conical surface with mobility
Gap.
Further scheme is that the liquid glue is silicone seal glue.
Compared with the prior art, the invention has the advantages that: using the screw thread of cap nut and pipe fitting outside conduit
When screwing, the hydraulic sealing ring on 74 ° of conical surfaces of pipe fitting is squeezed, it is deformed and generates flowing, fills up conduit and pipe fitting gold
Belong to minim gap when sealing, and with liquid glue sealing end face, solves in metal sealing because of form error and rough surface
The leakage that higher band is come is spent, and then realizes the reliable sealing of pipe fitting and conduit, there is good seal performance, repairs user
Just, feature at low cost, reuse rate is high.
Detailed description of the invention
Fig. 1 is the structure and method schematic diagram of the specific embodiment of the invention.
Appended drawing reference
1, pipe fitting；2, joint body；3, hydraulic packing cushion rubber；4, liquid glue.
Specific embodiment
In order to more fully understand technology contents of the invention, combined with specific embodiments below to technical solution of the present invention into
One step introduction and explanation, but not limited to this.
As shown in Figure 1, specific embodiments of the present invention one, including mainly have pipe fitting 1, conduit, 3 and of hydraulic packing cushion rubber
Liquid glue 4 forms；1 both ends of pipe fitting are equipped with joint body 2, and pipe fitting 1 is equipped with the circular cone in taper-face contact face, and conduit is set
There is the round conical surface seal for being flared the round conical surface and pipe fitting 1 to cooperate, the filling of hydraulic packing cushion rubber 3 be located at 1 conical surface of pipe fitting with
Among conduit conical surface seal mating surface；
The compound seal flared fitting 1 and encapsulating method are as follows:
A., hydraulic packing cushion rubber 3 is placed on to the medium position of pipe fitting 1, with 1 circular conical surface tight fit of pipe fitting；
B. the circumferential surface that the top conical surface of hydraulic packing cushion rubber 3 is cased in pipe fitting 1 is uniformly coated with liquid glue 4；
C. the joint body 2 of the cap nut of conduit and pipe fitting 1 is threadedly engaged and is tightened；
When d. tightening conduit and pipe fitting 1, after screwing energetically, continues to squeeze hydraulic packing cushion rubber 3 to the conical surface, revolve completely
It cannot tightly move forward, keep not loosening for 5 minutes in squeezed state；
E. pipe fitting 1 and conduit end face are compressed with static pressure machine again, and is just used after 24 hours after the bonding completely of liquid glue 4
Pipe fitting 1；
F. above step is repeated to tighten 1 other end of pipe fitting with conduit.
Joint body 2 is equipped with screw thread and the cap nut locking screw of catheter port cooperates, and can tighten pipe fitting 1 and lead
Pipe.
The conical surface of pipe fitting 1 is 74 ° of circular cones, is the cone angle for meeting flared coupling 1.
Hydraulic packing cushion rubber 3 is intermediate empty ultra-thin circular conical surface, the circular conical surface tight fit being placed among pipe fitting 1.
Hydraulic packing cushion rubber 3 can be squeezed and deformed the gap of filling pipe fitting 1 and the conduit conical surface, elastic packing with mobility
It can be very well.
Liquid glue 4 is silicone seal glue, and cementability is good, uses under waterproof heatproof high-low temperature resistant particular surroundings after solidification
Pipe fitting 1 is suitable for operation to bond, and can unscrew utilization.
Using good fluidity, elasticity is good, tear-proof, intensity are high, cementability is strong, corrosion-resistant, high-low temperature resistant, the liquid of long-life
The inherent characteristic of state sealing ring improves used old-fashioned flared coupling 1, by elastic seal ring in connector chorista
Between filling effect realize sealing.And the metal face contact for generating elastic packing and conduit between connector chorista is made to seal phase
In conjunction with compound seal.To be greatly improved the sealing performance of flared fitting 1, make flared fitting 1 uses model
It encloses and also greatly improves.
Using light-duty ultra-thin hydraulic sealing ring, keep former 1 overall weight of pipe fitting and structure constant.And realize reliable sealing
Performance requirement.The compound seal that achieves that elasticity with metal covering can be slightly improved former pipe fitting 1.
The silicone sealant principle of solidification is moisture-curable, and after standing glue coats 24 hours, pipe fitting 1 and conduit are used.
When cap nut and 1 screw thread of pipe fitting outside conduit screw, the liquid on 74 ° of conical surfaces of pipe fitting 1 is squeezed
Sealing ring deforms it and generates flowing, fills up conduit and minim gap when 1 metal sealing of pipe fitting, at the same conduit with
Formed between pipe fitting 1 elastic packing of certain interface width carrier coat liquid glue 4 bond after, barrier liquid or gas
The flowing of body solves in metal sealing due to taking three layers of compound seal of metal, flexible rubber ring and glue because shape is missed
The leakage that difference and surface roughness higher band are come, and then realize the reliable sealing of pipe fitting 1 Yu conduit.
When the screw thread of cap nut and pipe fitting 1 outside the used conduit of the present invention screws, 74 ° of pipe fitting 1 are squeezed
Hydraulic sealing ring on the conical surface deforms it and generates flowing, fills up minim gap when conduit and 1 metal sealing of pipe fitting,
And with 4 seal face of liquid glue, solve the leakage come in metal sealing by form error and surface roughness higher band, into
And the reliable sealing of pipe fitting 1 Yu conduit is realized, there is good seal performance, repair easy to use, at low cost, reuse rate
High feature.
It is above-mentioned that technology contents of the invention are only further illustrated with embodiment, in order to which reader is easier to understand, but not
It represents embodiments of the present invention and is only limitted to this, any technology done according to the present invention extends or recreation, by of the invention
Protection.Protection scope of the present invention is subject to claims.
Claims (6)
1. compound seal flared fitting and encapsulating method, it is characterised in that: including mainly there is pipe fitting, conduit, hydraulic close
Sealing rubber ring and liquid glue composition；The pipe fitting both ends are equipped with joint body, and the pipe fitting is equipped with the circle in taper-face contact face
Shape cone, the conduit are equipped with the round conical surface seal cooperation for being flared the round conical surface and pipe fitting, and the hydraulic packing cushion rubber is filled out
It fills among the pipe fitting conical surface and conduit conical surface seal mating surface；
The compound seal flared fitting and encapsulating method are as follows:
A., hydraulic packing cushion rubber is placed on to the medium position of pipe fitting, with pipe fitting circular conical surface tight fit；
B. the circumferential surface that the top conical surface of hydraulic packing cushion rubber is cased in pipe fitting is uniformly coated with liquid glue；
C. the joint body of the cap nut of conduit and pipe fitting is threadedly engaged and is tightened；
When d. tightening conduit and pipe fitting, after screwing energetically, continue to squeeze hydraulic packing cushion rubber to the conical surface, screwing completely cannot
Forward keeps not loosening for 5 minutes in squeezed state；
E. pipe fitting and conduit end face are compressed with static pressure machine again, and is just connect using pipe after liquid glue bonds 24 hours completely
Head；
F. above step is repeated to tighten the pipe fitting other end with conduit.
2. compound seal flared fitting according to claim 1 and encapsulating method, it is characterised in that: the connector sheet
Body is equipped with screw thread and the cap nut locking screw of catheter port cooperates.
3. compound seal flared fitting according to claim 1 and encapsulating method, it is characterised in that: the pipe fitting
The conical surface be 74 ° of circular cones.
4. compound seal flared fitting according to claim 1 and encapsulating method, it is characterised in that: described hydraulic close
Sealing rubber ring is intermediate empty ultra-thin circular conical surface, the circular conical surface tight fit being placed among pipe fitting.
5. compound seal flared fitting according to claim 1 and encapsulating method, it is characterised in that: described hydraulic close
Sealing rubber ring can be squeezed and deformed the gap of filling pipe fitting and the conduit conical surface with mobility.
6. compound seal flared fitting according to claim 1 and encapsulating method, it is characterised in that: the liquid glue
Water is silicone seal glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474173.0A CN109099235A (en) | 2017-06-21 | 2017-06-21 | Compound seal flared fitting and encapsulating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710474173.0A CN109099235A (en) | 2017-06-21 | 2017-06-21 | Compound seal flared fitting and encapsulating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109099235A true CN109099235A (en) | 2018-12-28 |
Family
ID=64796053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710474173.0A Pending CN109099235A (en) | 2017-06-21 | 2017-06-21 | Compound seal flared fitting and encapsulating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109099235A (en) |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190929811A (en) * | 1909-12-21 | 1910-05-05 | Arthur France | An Improvement in Connecting Devices for Pipes, Tubes, Tubular Fittings and the like. |
| GB2100369A (en) * | 1981-06-10 | 1982-12-22 | Kr Ass Inc | Universal fluid-sealing joint |
| CN88201206U (en) * | 1988-02-02 | 1988-12-07 | 冯荣生 | Changable fast joint |
| JPH05187582A (en) * | 1991-03-27 | 1993-07-27 | Hitachi Metals Ltd | Pipe end corrosion preventive joint |
| JPH07305791A (en) * | 1994-05-10 | 1995-11-21 | Mitsubishi Plastics Ind Ltd | Pipe end corrosion protected coupling |
| JPH1026269A (en) * | 1996-07-09 | 1998-01-27 | Matsumoto Giken Kk | How to connect metal tubes |
| US6279965B1 (en) * | 1999-04-12 | 2001-08-28 | Kokusan Parts Industry Co., Ltd. | Pipe joint |
| JP2002054778A (en) * | 2000-08-14 | 2002-02-20 | Fukuhara Co Ltd | Hose joint |
| CN1920364A (en) * | 2006-08-28 | 2007-02-28 | 阎金波 | Thin wall stainless steel pipe glue injection type seamless socket connection method |
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| CN205013907U (en) * | 2015-08-20 | 2016-02-03 | 中航商用航空发动机有限责任公司 | Female head of flared fitting and be used for aeroengine's coupling |
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-
2017
- 2017-06-21 CN CN201710474173.0A patent/CN109099235A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| GB2100369A (en) * | 1981-06-10 | 1982-12-22 | Kr Ass Inc | Universal fluid-sealing joint |
| CN88201206U (en) * | 1988-02-02 | 1988-12-07 | 冯荣生 | Changable fast joint |
| JPH05187582A (en) * | 1991-03-27 | 1993-07-27 | Hitachi Metals Ltd | Pipe end corrosion preventive joint |
| JPH07305791A (en) * | 1994-05-10 | 1995-11-21 | Mitsubishi Plastics Ind Ltd | Pipe end corrosion protected coupling |
| JPH1026269A (en) * | 1996-07-09 | 1998-01-27 | Matsumoto Giken Kk | How to connect metal tubes |
| US6279965B1 (en) * | 1999-04-12 | 2001-08-28 | Kokusan Parts Industry Co., Ltd. | Pipe joint |
| JP2002054778A (en) * | 2000-08-14 | 2002-02-20 | Fukuhara Co Ltd | Hose joint |
| CN1920364A (en) * | 2006-08-28 | 2007-02-28 | 阎金波 | Thin wall stainless steel pipe glue injection type seamless socket connection method |
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| CN204533894U (en) * | 2014-12-29 | 2015-08-05 | 海城市石油机械制造有限公司 | A kind of enlarging sealing joint body |
| CN205013907U (en) * | 2015-08-20 | 2016-02-03 | 中航商用航空发动机有限责任公司 | Female head of flared fitting and be used for aeroengine's coupling |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181228 |