CN107477278A - Compound seal pipe joint and method and purposes - Google Patents
Compound seal pipe joint and method and purposes Download PDFInfo
- Publication number
- CN107477278A CN107477278A CN201710706820.6A CN201710706820A CN107477278A CN 107477278 A CN107477278 A CN 107477278A CN 201710706820 A CN201710706820 A CN 201710706820A CN 107477278 A CN107477278 A CN 107477278A
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- Prior art keywords
- hole
- incision
- fittings body
- nut
- aperture
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- 150000001875 compounds Chemical class 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims description 10
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 230000000694 effects Effects 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000004677 Nylon Substances 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229920001778 nylon Polymers 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000013021 overheating Methods 0.000 claims description 2
- 210000002421 cell wall Anatomy 0.000 claims 1
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- 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
- F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention provides a kind of compound seal pipe joint, including fittings body, nut, incision set and O-ring seals；Outer wall is provided with external screw thread at left and right sides of the fittings body, fittings body through hole is set inside the fittings body, the fittings body through hole both ends set a circle seal groove respectively, the fittings body through hole is less than the aperture of seal groove by being followed successively by cylindrical hole one, truncated cone-shaped hole, cylindrical hole two and cylindrical hole three, the aperture of the cylindrical hole one inward outside；The aperture in the truncated cone-shaped hole is gradually reduced untill equal with the aperture of cylindrical hole two along from cylindrical hole one to the direction of cylindrical hole two, and the aperture of cylindrical hole three is less than the aperture of cylindrical hole two；A circle boss is formed on the hole wall of cylindrical hole three；Nut through hole is set in the nut.The pipe seal form of the present invention is incision plus the sealing of elastic seal ring compound axial, is enclosed on by incision under the conditions of being pushed away in nut and completes incision loop port and by the incision of even tube outer diameter, reaching the anti-pull-off effect of connection pipe, welding, without flange.
Description
Technical field
The present invention relates to a kind of pipe joint and encapsulating method and purposes, more particularly to a kind of compound seal pipe joint and method
And purposes, it is mainly arranged in the pipeline of conveying air, as the pipeline can connect with air compressor.
Background technology
With the development of science and technology, the application of pipe-line system is more and more wider, is widely used in all trades and professions, pipeline
Between connected mode be also constantly increasing and updating, and the convenience and pipe-line system of pipe-line system installation are made
Security reliability it is also proposed higher requirement, and wherein ferrule-type compression joint has simple in construction, easy to use and do not had to
The characteristics of welding, be a kind of connected mode of mesohigh pipeline that is convenient, being reliable, easy to installing/dismounting, such as Application No.
201521101452.5 Chinese patent shown in.But existing sealing means are that directly setting is corresponding close at pipe joint mostly
Seal, such case lower seal are prone to be corroded in the liquid of pipeline, destroy the sealing of pipeline.
It is existing to accomplish external diameter 50mm using incision sealing and the caliber of pulling force sealing structure, current maximum, exceed
50mm's, the connection of generally use flange or welding, complicated, installation is complicated, operation inconvenience, uses underaction；In wall
In the case that face is thin, if caliber is big, in incision sealing and pulling force sealing, when being also not cut into outer wall, tube wall has just deformed
, sealing effectiveness can not be realized.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and provide it is a kind of it is reasonable in design,
Widely applicable, good sealing effect and the not direct compound seal pipe joint contacted with medium in pipe of sealing ring and method and purposes.
Technical scheme is used by the present invention solves the above problems：A kind of compound seal pipe joint, including fittings body, spiral shell
Female, incision set and O-ring seals；Outer wall is provided with external screw thread at left and right sides of the fittings body, is set inside the fittings body
Fittings body through hole, the fittings body through hole both ends set a circle seal groove respectively, and the fittings body through hole is by outside inward successively
For cylindrical hole one, truncated cone-shaped hole, cylindrical hole two and cylindrical hole three, the aperture of the cylindrical hole one is less than the aperture of seal groove；
The aperture in the truncated cone-shaped hole is gradually reduced until the aperture with cylindrical hole two along from cylindrical hole one to the direction of cylindrical hole two
Untill equal, the aperture of cylindrical hole three is less than the aperture of cylindrical hole two；A circle boss is formed on the hole wall of cylindrical hole three；Institute
Setting nut through hole in nut is stated, the nut through hole includes internal thread hole, the incision lock set tieholen of truncated cone-shaped being sequentially connected
With the pipeline sleeve joint hole of cylinder, the internal thread hole inwall sets the internal thread that the external screw thread with fittings body matches, described
The aperture of pipeline sleeve joint hole is less than the aperture of internal thread hole；Along from internal thread hole to pipeline sleeve joint hole direction, the incision
The aperture of lock set tieholen from it is equal with the aperture of internal thread hole taper into it is equal with the aperture of pipeline sleeve joint hole；The incision
Set sets the pipe hole by incision loop port and cylinder；O-ring seals are arranged in the seal groove of fittings body, the sealing of O shapes
The outer surface of circle contacts with the seal groove wall of fittings body；Incision set is arranged on fittings body end, and the incision set for cutting set stops
Muzzle is cut loop port and contacted with the hole wall in truncated cone-shaped hole in O-ring seals, and under the hole wall effect in truncated cone-shaped hole
Curve inwardly；The external screw thread threaded connection of internal thread hole and fittings body in the nut simultaneously fixes fittings body and incision set
Firmly；The outer surface in the incision loop port hole and cylindrical hole one, the truncated cone-shaped wall surface of the hole of fittings body contact to form the first sealing ring,
Outside wall is covered inside O-ring seals in the fittings body with incision to contact to form the second sealing ring；The fittings body both ends
It is respectively provided with a circle chamfering structure.
Preferably, the angle number of degrees between two buses in fittings body of the present invention on truncated cone-shaped hole axle section are
30~45 °, the angle between two buses in the nut on the incision cover locking hole axle section of truncated cone-shaped is all 90 °, institute
The angle number of degrees for stating the extended line of two incision loop port outer surfaces on the incision loop port shaft section of incision set are 15~25 °.
Preferably, nut both ends of the present invention are respectively provided with a circle fillet structure, the both ends of the nut through hole are all provided with
It is equipped with a circle chamfering structure.
Preferably, the non-incision loop port side end face of incision set of the present invention sets 45 ° of chamfering structures of circle；The end face
Incision set through hole sets 16 ° of chamfering structures of circle, and 16 ° of chamfering structure thickness are 1~3mm.
Preferably, the outer surface of O-ring seals of the present invention contacts with the seal groove wall of fittings body.
Preferably, the outer diameter tube of pipe joint connection of the present invention is 145~225mm, wall thickness is 1.5~2.5mm.
Preferably, incision set of the present invention is through Overheating Treatment.
Preferably, compound seal pipe joint of the present invention may be configured as leading directly to, curved logical, threeway, four-way and all kinds of changes
Footpath and the pipe joint of threaded styletable.
Preferably, fittings body of the present invention, incision set and nut material can be selected stainless steel, copper, aluminium alloy or
Nylon.
Preferably, material stainless steel of the present invention is applied to the fluid that overpressure is 8~25MPa, copper is applied to
Overpressure is 3~10MPa fluid, and aluminium alloy is applied to the fluid that overpressure is 5~16MPa, and nylon is applied in pipe
Pressure is 3~5MPa fluid.
A kind of the characteristics of compound seal method, is：Using described compound seal pipe joint, the compound seal method
The step of it is as follows：First fittings body, O-ring seals, incision set and nut are installed successively with position in order, then will need to connect
Pipeline one end of head is arrived at boss until pipe end through nut through hole, incision set through hole, O-ring seals, then will be connect
The head external screw thread of body is threadedly coupled with the internal thread hole of nut；With tightening for nut, incision is enclosed on the interior thrust of nut
Under move inwards so as to cut between pipeline and O-ring seals；Justified during incision is enclosed on motion inwards and by fittings body
The interior thrust in platform shape hole, cause incision loop port to curve inwardly and compress pipeline so as to be fixed and seal.
A kind of purposes of compound seal pipe joint, its feature are：Using described compound seal pipe joint, due to being connected
The ratio between external diameter and wall thickness of pipeline reach 100:1, during to being fixed and being sealed by connecting leg road, by the wall in connecting leg road
Face is under pressure and is easily deformed, the ingenious cooperation that the present invention is covered by nut and incision, only by rotating nut, you can
Realize and incision set is cut by the outer wall in connecting leg road and is connected the indeformable function of inner-walls of duct, can ensure that by the inwall in connecting leg road
It is indeformable, so as to being fixed and being sealed by the outer wall in connecting leg road, in situation about being connected without welding with without using flange
Under, it is possible to the effect for being fixed and being sealed by connecting leg road to Large Diameter Pipeline and thin pipe wall is realized, for people in the art
For member, there is breakthrough meaning in the pipeline connection of reality, be advantageous to Large Diameter Pipeline and connected more with the pipeline of thin pipe wall
It is convenient, flexible.
The present invention compared with prior art, has advantages below and effect：The present invention is 145- suitable for outer tube diameter
225mm, the Large Diameter Pipeline sheet-metal duct that wall thickness is 1.5-2.5mm；The pipe seal form of the present invention is close for incision plus elasticity
Seal compound axial seals, and is enclosed on by incision under the conditions of being pushed away in nut and completes incision loop port in cutting by even tube outer diameter
Enter, reach the anti-pull-off effect of connection pipe, welding, without flange；Simultaneously as nut is constantly tightened, the outer of set is cut
The cylindrical hole one of surface and fittings body, truncated cone-shaped wall surface of the hole contact to form the first sealing ring, inside the O-ring seals in fittings body
Outside wall is covered with incision to contact to form the second sealing ring, dual-seal and O-ring seals do not contact with the medium in pipeline, tool
There is the advantages of simple in construction, in light weight, sealed reliable, anti-pull-out force is high, widely applicable.O-ring seals are formula of filling a vacancy, and can be played
Reliable sealing function, the tolerance of O-ring seals do not influence the reliability of O-ring seals；It is that seal is that resistance to plucking takes off again to cut set
Part, and O-ring seals composition compound seal.And 45 degree of angles of the invention turn half tooth and incision can be achieved.
Brief description of the drawings
Fig. 1 is the broken section structural representation of compound seal pipe joint in the embodiment of the present invention；
Fig. 2 is the cross section structure diagram of center tap body of the embodiment of the present invention；
Fig. 3 is the left view structural representation of center tap body of the embodiment of the present invention；
Fig. 4 is the cross section structure diagram of locking nut in the embodiment of the present invention；
Fig. 5 is the left view structural representation of locking nut in the embodiment of the present invention；
Fig. 6 is the main structure diagram of sealing ring in the embodiment of the present invention；
Fig. 7 is the cross section structure diagram of sealing ring in the embodiment of the present invention；
Fig. 8 is the cross section structure diagram that set is cut in the embodiment of the present invention.
Description of symbols in figure：1st, fittings body；2nd, nut；3rd, incision set；4th, O-ring seals；5th, pipeline；11st, external screw thread；
12nd, seal groove；13rd, cylindrical hole one；14th, truncated cone-shaped hole；15th, cylindrical hole two；16th, cylindrical hole three；21st, pipeline sleeve joint hole；22、
Cut lock set tieholen；23rd, internal thread hole；24th, internal thread；31st, loop port is cut；32nd, pipe hole.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described in further detail by embodiment, and following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Embodiment.
Referring to Fig. 1 to Fig. 8, the compound seal pipe joint in the present embodiment includes fittings body 1, nut 2, incision set 3 and O shapes
Sealing ring 4, wherein fittings body 1, nut 2 and incision set 3 are stainless steel, copper, aluminium alloy or nylon material.
The left and right sides outer wall of fittings body 1 in the present embodiment is provided with external screw thread 11, and the inside of fittings body 1, which is set, to be connect
Head body through hole, the fittings body through hole both ends set a circle seal groove 12 respectively.The fittings body through hole is by outside inward successively
For cylindrical hole 1, truncated cone-shaped hole 14, cylindrical hole 2 15 and cylindrical hole 3 16.The aperture of cylindrical hole 1 is less than seal groove 12
Aperture；The aperture in truncated cone-shaped hole 14 along from cylindrical hole 1 to the direction of cylindrical hole 2 15 be gradually reduced until and cylindrical hole
Untill 2 15 aperture is equal, it can play so that cutting 31 aduncate effect of loop port；The aperture of cylindrical hole 3 16 is less than circle
The aperture of post holes 2 15, forms a circle boss 17 on the hole wall of cylindrical hole 3 16, and boss 17 plays a part of targeted duct；Institute
State the both ends of fittings body 1 and be respectively provided with a circle chamfering structure.
Incision set 3 in the present embodiment is provided with the pipe hole 32 of incision loop port 31 and cylinder.
Nut through hole is set among the nut 2 in the present embodiment, and the nut through hole includes the internal thread hole being sequentially connected
23rd, the incision lock set tieholen 22 of truncated cone-shaped and the pipeline sleeve joint hole 21 of cylinder, the inwall of internal thread hole 23 is set and joint
The internal thread 24 that the external screw thread 11 of body 1 matches；The aperture of the pipeline sleeve joint hole 21 is less than the aperture of internal thread hole 23；Along
From internal thread hole 23 to the direction of pipeline sleeve joint hole 21, the aperture of the incision lock set tieholen 22 is from the aperture with internal thread hole 23
It is equal taper into it is equal with the aperture of pipeline sleeve joint hole 21；The both ends of nut 2 are respectively provided with a circle fillet structure, the spiral shell
The both ends of female through hole are provided with a circle chamfering structure.
The O-ring seals 4 of the present embodiment be arranged on fittings body 1 seal groove 12 in, the outer surface of O-ring seals 4 with
The wall of seal groove 12 contact of fittings body 1.Incision set 3 is arranged on the end of fittings body 1,31 sets of the incision loop port of incision set 1
In O-ring seals 4, and cut loop port 31 and contacted with the hole wall in truncated cone-shaped hole 14, and the hole wall in truncated cone-shaped hole 14 is made
Curved inwardly under.The external screw thread 11 of internal thread hole 23 and fittings body 1 in the nut 2 is threadedly coupled and by the He of fittings body 1
Incision set 3 is fixed；The cylindrical hole 1 of the incision outer surface of loop port 31 and fittings body 1, the contact of the wall of truncated cone-shaped hole 14
Form the first sealing ring, the inside of O-ring seals 4 in the fittings body 2 covers 3 outside walls with incision and contacts to form the second sealing
Ring, the first sealing ring prevent from causing to corrode in the medium that O-ring seals 4 are directly exposed in pipeline 5；Circle in the fittings body 1
The angle number of degrees between two buses on the shaft section of platform shape hole 14 are 30~45 °, the incision lock set of truncated cone-shaped in the nut 2
The angle number of degrees between two buses on the shaft section of tieholen 22 are 90 °, two on the incision loop port shaft section of the incision set 3
The angle number of degrees of the extended line of bar incision loop port outer surface are 15~25 °.
The non-incision loop port side end face of incision set 3 of the present embodiment sets 45 ° of chamfering structures of circle；End face incision set is logical
One 16 ° of chamfering structures of circle are set at hole, and 16 ° of chamfering structure thickness are 1~3mm；It is first thermally treated during incision 3 production of set.
The outer diameter tube of the pipe joint connection of the present embodiment is 145~225mm, and wall thickness is 1.5~2.5mm, and wall thickness is commonly used
It is worth for 2mm, it is applied widely.
The compound seal pipe joint of the present embodiment may be configured as leading directly to, curved logical, threeway, four-way and all kinds of reducings and threaded
The pipe joint of styletable.
The pipe joint material of the present embodiment is various, and stainless steel is applied to the fluid that overpressure is 8~25MPa, and copper is applicable
In the fluid that overpressure is 3~10MPa, aluminium alloy is applied to the fluid that overpressure is 5~16MPa, and nylon is applied to pipe
Interior pressure is 3~5MPa fluid.
The present invention installation method be：Fittings body 1, O-ring seals 4, incision are first covered into 3 and nut 2 with position in order
Install successively, the one end of pipeline 5 for needing joint is then covered into through hole, O-ring seals 4 until pipeline 5 through nut through hole, incision
End is arrived at boss 17, is then threadedly coupled the external screw thread 11 of fittings body 1 with the internal thread hole 23 of nut 2, with nut 2
Tighten, incision set 3 moves so as to cut between pipeline 5 and O-ring seals 4 inwards under the interior thrust of nut 2；Incision
Set 3, again by the interior thrust in the truncated cone-shaped hole 14 of fittings body 1, causes incision loop port 31 to curve inwardly during moving inwards
Pipeline 5 is compressed so as to be fixed and seal, both plays sealing function, prevents pipeline 5 from pull-off occurs again.Twist at 45 degree of angles of the invention
Incision can be achieved in dynamic half tooth.
The purposes of compound seal pipe joint of the present invention is：Using described compound seal pipe joint, due to by connecting leg road
External diameter and the ratio between wall thickness reach 100:1, during to being fixed and being sealed by connecting leg road, by the wall in connecting leg road by
Easily it is deformed to pressure, the ingenious cooperation that the present invention is covered by nut and incision, only by rotating nut, you can realize
The incision of incision set by the outer wall in connecting leg road and is connected into the indeformable function of inner-walls of duct, can ensure that constant by the inwall in connecting leg road
Shape, so as to being fixed and being sealed by the outer wall in connecting leg road, without welding with connected without using flange in the case of, just
The effect for being fixed and being sealed by connecting leg road to Large Diameter Pipeline and thin pipe wall can be realized, for those skilled in the art
Speech, reality pipeline connection on there is breakthrough meaning, be advantageous to Large Diameter Pipeline connected with the pipeline of thin pipe wall more facilitate,
Flexibly.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, it is named
Title etc. can be different, and the above content described in this specification is only to structure example explanation of the present invention.It is all according to
The equivalence changes or simple change done according to the construction described in inventional idea of the present invention, feature and principle, are included in this hair
In the protection domain of bright patent.Those skilled in the art can do various to described specific embodiment
The modification of various kinds or supplement are substituted using similar mode, without departing from structure of the invention or surmount present claims
Scope defined in book, protection scope of the present invention all should be belonged to.
Claims (9)
- A kind of 1. compound seal pipe joint, it is characterised in that：Including fittings body, nut, incision set and O-ring seals；It is described to connect Outer wall is provided with external screw thread at left and right sides of head body, and fittings body through hole, the fittings body through hole two are set inside the fittings body End sets a circle seal groove respectively, and the fittings body through hole by being followed successively by cylindrical hole one, truncated cone-shaped hole, cylindrical hole two inward outside With cylindrical hole three, the aperture of the cylindrical hole one is less than the aperture of seal groove；The aperture in the truncated cone-shaped hole is along from cylinder Hole one is gradually reduced untill equal with the aperture of cylindrical hole two to the direction of cylindrical hole two, and the aperture of cylindrical hole three is less than The aperture of cylindrical hole two；A circle boss is formed on the hole wall of cylindrical hole three；Nut through hole, the nut are set in the nut Through hole includes the internal thread hole, the incision lock set tieholen of truncated cone-shaped and the pipeline sleeve joint hole of cylinder being sequentially connected, the interior spiral shell Pit inwall sets the internal thread that the external screw thread with fittings body matches, and the aperture of the pipeline sleeve joint hole is less than internal thread hole Aperture；Along from internal thread hole to pipeline sleeve joint hole direction, the aperture of the incision lock set tieholen is from the hole with internal thread hole Footpath is equal taper into it is equal with the aperture of pipeline sleeve joint hole；The incision set sets the pipe by incision loop port and cylinder Road hole；O-ring seals are arranged in the seal groove of fittings body, the outer surface of O-ring seals and the sealing ring cell wall of fittings body Face contacts；Incision set is arranged on fittings body end, and the incision loop port for cutting set is sleeved in O-ring seals, and cuts set and stop Mouth contacts with the hole wall in truncated cone-shaped hole, and is curved inwardly under the hole wall effect in truncated cone-shaped hole；Internal thread hole in the nut It is threadedly coupled with the external screw thread of fittings body and fixes fittings body and incision set；The outer surface in the incision loop port hole and Cylindrical hole one, the truncated cone-shaped wall surface of the hole of fittings body contact to form the first sealing ring, inside O-ring seals in the fittings body with The outside wall of incision set contacts to form the second sealing ring；The fittings body both ends are respectively provided with a circle chamfering structure.
- 2. compound seal pipe joint according to claim 1, it is characterised in that：Truncated cone-shaped hole axle section in the fittings body On two buses between the angle number of degrees be 30~45 °, in the nut on the incision cover locking hole axle section of truncated cone-shaped Angle between two buses is all 90 °, two incision loop port outer surfaces on the incision loop port shaft section of the incision set Extended line the angle number of degrees be 15~25 °.
- 3. compound seal pipe joint according to claim 1, it is characterised in that：The nut both ends are respectively provided with a circle fillet Structure, the both ends of the nut through hole are provided with a circle chamfering structure.
- 4. compound seal pipe joint according to claim 1, it is characterised in that：The non-incision loop port side of incision set Face sets 45 ° of chamfering structures of circle；End face incision set through hole sets 16 ° of chamfering structures of circle, 16 ° of chamfering structure thickness For 1~3mm.
- 5. compound seal pipe joint according to claim 1, it is characterised in that：The outer diameter tube of pipe joint connection is 145~225mm, wall thickness are 1.5~2.5mm.
- 6. compound seal pipe joint according to claim 1, it is characterised in that：The incision set is through Overheating Treatment.
- 7. compound seal pipe joint according to claim 1, it is characterised in that：The fittings body, incision set and nut Material selection stainless steel, copper, aluminium alloy or nylon.
- A kind of 8. compound seal method, it is characterised in that：Using compound close as described in claim 1~7 any claim Tube sealing joint, it is as follows the step of the compound seal method：It is 145-225mm, wall thickness 1.5- by the external diameter in connecting leg road 2.5mm, first fittings body, O-ring seals, incision set and nut are installed successively with position in order, then by by connecting leg road One end is arrived at boss until pipe end through nut through hole, incision set through hole, O-ring seals, then by the outer of fittings body Screw thread is threadedly coupled with the internal thread hole of nut；Both without using welding, also connected without using flange, only by twisting for nut Tightly, incision is enclosed under the interior thrust of nut moves so as to cut by connecting leg road inwards, and indeformable by the inwall in connecting leg road； Incision is enclosed on during motion inwards again by the interior thrust in fittings body truncated cone-shaped hole so that incision loop port curves inwardly pressure Tightly by connecting leg road so as to being fixed and being sealed by connecting leg road.
- A kind of 9. purposes of compound seal pipe joint, it is characterised in that：Using as described in claim 1~7 any claim Compound seal pipe joint, due to reaching 100 by the ratio between the external diameter in connecting leg road and wall thickness:1, when to being fixed by connecting leg road and During sealing, it is under pressure by the wall in connecting leg road and is easily deformed, the ingenious cooperation covered by nut and incision, only Only pass through rotating nut, you can realize and incision set is cut by the outer wall in connecting leg road and is connected the indeformable function of inner-walls of duct, Can ensure that it is indeformable by the inwall in connecting leg road, so as to being fixed and being sealed by the outer wall in connecting leg road, without welding and nothing In the case of flange connection need to be used, it is possible to realize the effect for being fixed and being sealed by connecting leg road to Large Diameter Pipeline and thin pipe wall Fruit, be advantageous to Large Diameter Pipeline connected with the pipeline of thin pipe wall it is more convenient and flexible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706820.6A CN107477278A (en) | 2017-08-17 | 2017-08-17 | Compound seal pipe joint and method and purposes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706820.6A CN107477278A (en) | 2017-08-17 | 2017-08-17 | Compound seal pipe joint and method and purposes |
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| Publication Number | Publication Date |
|---|---|
| CN107477278A true CN107477278A (en) | 2017-12-15 |
Family
ID=60600740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710706820.6A Pending CN107477278A (en) | 2017-08-17 | 2017-08-17 | Compound seal pipe joint and method and purposes |
Country Status (1)
| Country | Link |
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| CN (1) | CN107477278A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911388A (en) * | 2020-07-14 | 2020-11-10 | 宁波速通汽配制造有限公司 | Anti-leakage automobile air conditioner compressor |
| CN115435164A (en) * | 2022-09-30 | 2022-12-06 | 广州电力机车有限公司 | An automatic centering and preventing pipeline pull-out device and installation method |
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| CN1396996A (en) * | 2000-03-07 | 2003-02-12 | 帕克汉尼芬有限公司 | Screw connection |
| CN201110426Y (en) * | 2007-12-04 | 2008-09-03 | 江西福事特液压有限公司 | Three-edge ferrule |
| CN101617159A (en) * | 2007-03-19 | 2009-12-30 | 大金工业株式会社 | Bite-in type pipe joint, refrigeration device, and water heating device |
| CN103807526A (en) * | 2012-11-13 | 2014-05-21 | 南车青岛四方机车车辆股份有限公司 | Clamping sleeve type metal sealing pipe joint and using method thereof |
| CN207268341U (en) * | 2017-08-17 | 2018-04-24 | 海盐管件制造有限公司 | Composite sealing pipe joint |
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| CN1396996A (en) * | 2000-03-07 | 2003-02-12 | 帕克汉尼芬有限公司 | Screw connection |
| CN101617159A (en) * | 2007-03-19 | 2009-12-30 | 大金工业株式会社 | Bite-in type pipe joint, refrigeration device, and water heating device |
| CN201110426Y (en) * | 2007-12-04 | 2008-09-03 | 江西福事特液压有限公司 | Three-edge ferrule |
| CN103807526A (en) * | 2012-11-13 | 2014-05-21 | 南车青岛四方机车车辆股份有限公司 | Clamping sleeve type metal sealing pipe joint and using method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911388A (en) * | 2020-07-14 | 2020-11-10 | 宁波速通汽配制造有限公司 | Anti-leakage automobile air conditioner compressor |
| CN111911388B (en) * | 2020-07-14 | 2022-07-05 | 宁波速通汽配制造有限公司 | Anti-leakage automobile air conditioner compressor |
| CN115435164A (en) * | 2022-09-30 | 2022-12-06 | 广州电力机车有限公司 | An automatic centering and preventing pipeline pull-out device and installation method |
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Application publication date: 20171215 |