CN106523814B - A kind of bite type connection enlarging formula steel pipe pipe fitting - Google Patents

A kind of bite type connection enlarging formula steel pipe pipe fitting Download PDF

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Publication number
CN106523814B
CN106523814B CN201611200228.0A CN201611200228A CN106523814B CN 106523814 B CN106523814 B CN 106523814B CN 201611200228 A CN201611200228 A CN 201611200228A CN 106523814 B CN106523814 B CN 106523814B
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CN
China
Prior art keywords
pipe fitting
sealing ring
seal groove
guiding groove
collar
Prior art date
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Application number
CN201611200228.0A
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Chinese (zh)
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CN106523814A (en
Inventor
周剑飞
万海华
张旭东
张丽红
朱振芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HAIYAN HAIGUAN PIPE FITTING MANUFACTURING Co Ltd
Original Assignee
HAIYAN HAIGUAN PIPE FITTING MANUFACTURING Co Ltd
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Application filed by HAIYAN HAIGUAN PIPE FITTING MANUFACTURING Co Ltd filed Critical HAIYAN HAIGUAN PIPE FITTING MANUFACTURING Co Ltd
Priority to CN201611200228.0A priority Critical patent/CN106523814B/en
Publication of CN106523814A publication Critical patent/CN106523814A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/02Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
    • F16L19/025Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
    • F16L19/028Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall

Abstract

The invention discloses a kind of bite type connection enlarging formula steel pipe pipe fittings, including collar joint, hex nut block, preceding guiding groove, preceding sealing ring, intermediate, the first sealing ring, the first seal groove, the second sealing ring, the second seal groove, flared type pipe fitting, rear guiding groove, pipe fitting stop collar, fastening nut, limiting slot.The present invention can be such that flared type steel pipe pipe fitting is connected using bite type, and the advantages of having both ferrule-type compression joint and flared fitting, matching is strong, it is reasonable for structure, easy for installation, anti-vibration, good airproof performance, the failures such as error leakage are less prone to, working condition is good, is conducive to promote and apply.

Description

A kind of bite type connection enlarging formula steel pipe pipe fitting
【Technical field】
The present invention relates to the technical field of pipe fitting, especially a kind of technology of bite type connection enlarging formula steel pipe pipe fitting Field.
【Background technology】
Pipe fitting is the fastening means between pipeline and pipeline, is the tie point that can be dismounted between element and pipeline.? Indispensable key player is acted as in pipe fitting, it is one of two main composition parts of hydraulic pipeline.Pipe fitting is used for Instrument isoline connects, and type of attachment has socket weld or threaded connection.It is mainly used for small-bore low-pressure line, it is frequent for needing The position of assembly and disassembly or as using the final adjustment of threaded fitting pipeline to be used.Structure type preferably uses metal covering contact sealing Structure, the structure type of gasket seal is commonly used on the general pipeline such as conveying water, oil, air.Pipe fitting has numerous kinds Class, common pipe fitting can be generally divided into two kinds of hard pipe joint and hose coupling.If according to the connection of pipe fitting and pipeline Mode is divided, and hard pipe joint has three kinds of flared type, bite type and welded type.Flared fitting Applicable media:Oil, Water, Gas etc. Non-aggressive or Korrosionsmedium pipe fitting, the specification requirement of adapted steel pipe is more flexible, after being welded with pipeline, has connection jail Lean on, good seal performance the features such as, thus it is wide in the systems such as oil refining, chemical industry, light industry, weaving, national defence, metallurgy, aviation, ship General use;It is also applied for the hydraulic drives pipeline such as various mechanical engineerings, machine tool.
【Invention content】
The purpose of the present invention is exactly to solve the problems of the prior art, proposes a kind of bite type connection enlarging formula steel pipe The advantages of part can be such that flared type steel pipe pipe fitting is connected using bite type, have both ferrule-type compression joint and flared fitting, Strong with property, reasonable for structure, easy for installation, anti-vibration, good airproof performance are less prone to the failures such as error leakage, and working condition is good, Conducive to popularization and application.
To achieve the above object, the present invention proposes a kind of bite type connection enlarging formula steel pipe pipe fitting, including bite type connects Head, hex nut block, preceding guiding groove, preceding sealing ring, intermediate, the first sealing ring, the first seal groove, the second sealing ring, second Seal groove, flared type pipe fitting, rear guiding groove, pipe fitting stop collar, fastening nut, limiting slot, collar joint outside setting There are hex nut block, the collar joint to be internally provided with preceding guiding groove, the bottom of the preceding guiding groove is equipped with preceding sealing Circle, the front of the intermediate is provided with the first seal groove, the first sealing ring, the centre is equipped in first seal groove The rear portion of body is provided with the second seal groove, is equipped with the second sealing ring in second seal groove, before the flared type pipe fitting End is provided with rear guiding groove, and pipe fitting stop collar is arranged on the flared type pipe fitting, is arranged on rear side of the pipe fitting stop collar Fastening nut, the fastening nut inside are provided with limiting slot.
Preferably, the collar joint, intermediate, flared type pipe fitting are sequentially communicated, the collar joint, in Mesosome, flared type pipe fitting axial line be located along the same line, the hex nut block is an integral structure with collar joint.
Preferably, the shape of the preceding guiding groove, which is bottom, gradually tapers up arc-shaped, the bottom of the preceding guiding groove It is provided with limited step, preceding sealing ring is fixed on limited step.
Shrink inwardly arc-shaped preferably, the front-end and back-end of the intermediate are outer end, described first is close The middle part in intermediate front end is arranged in sealing groove, and the cross sectional shape of first sealing ring is circle, and first sealing ring is outermost Side is located at outside the first seal groove, and second seal groove is arranged in the top of intermediate rear end, the section of second sealing ring Shape is circle, and the second sealing ring outermost is located at outside the second seal groove, and first sealing ring and the second sealing ring are equal For elastic seal ring.
Preferably, the shape of guiding groove is that bottom gradually tapers up arc-shaped after described, the pipe fitting stop collar is arranged In the outside of rear guiding groove, the limiting slot is set in the outside of pipe fitting stop collar.
Preferably, the right end lateral surface of the collar joint is provided with flank, it is arranged on the inside of the fastening nut There are flank, the collar joint and fastening nut to be fixed together by threaded engagement.
Beneficial effects of the present invention:The present invention by by collar joint, hex nut block, preceding guiding groove, preceding sealing ring, Intermediate, the first sealing ring, the first seal groove, the second sealing ring, the second seal groove, flared type pipe fitting, rear guiding groove, pipe fitting limit Position set, fastening nut, limiting slot are combined together, and by optimum experimental, flared type steel pipe pipe fitting can be made to connect using bite type The advantages of connecing, having both ferrule-type compression joint and flared fitting, matching is strong, reasonable for structure, easy for installation, anti-vibration, close Envelope property it is good, be less prone to error leakage etc. failures, working condition it is good, be conducive to promote and apply.
The feature and advantage of the present invention will be described in detail by embodiment combination attached drawing.
【Description of the drawings】
Fig. 1 is a kind of structural schematic diagram of bite type connection enlarging formula steel pipe pipe fitting of the present invention.
In figure:Sealing ring, 5- intermediates, 6- first before guiding groove, 4- before 1- collar joints, 2- hex nuts block, 3- Guiding groove, 12- pipes after sealing ring, the first seal grooves of 7-, the second sealing rings of 8-, the second seal grooves of 9-, 10- flared types pipe fitting, 11- Part stop collar, 13- fastening nuts, 14- limiting slots.
【Specific implementation mode】
Refering to fig. 1, a kind of bite type connection enlarging formula steel pipe pipe fitting of the present invention, including collar joint 1, hex nut block 2, preceding guiding groove 3, preceding sealing ring 4, intermediate 5, the first sealing ring 6, the first seal groove 7, the second sealing ring 8, the second seal groove 9, flared type pipe fitting 10, rear guiding groove 11, pipe fitting stop collar 12, fastening nut 13, limiting slot 14, outside the collar joint 1 Side is provided with hex nut block 2, and the collar joint 1 is internally provided with preceding guiding groove 3, the bottom peace of the preceding guiding groove 3 Equipped with preceding sealing ring 4, the front of the intermediate 5 is provided with the first seal groove 7, and first is equipped in first seal groove 7 The rear portion of sealing ring 6, the intermediate 5 is provided with the second seal groove 9, and the second sealing ring is equipped in second seal groove 9 8, the front end of the flared type pipe fitting 10 is provided with rear guiding groove 11, and pipe fitting stop collar is arranged on the flared type pipe fitting 10 12, the rear side of the pipe fitting stop collar 12 is arranged with fastening nut 13, and 13 inside of the fastening nut is provided with limiting slot 14, institute It states collar joint 1, intermediate 5, flared type pipe fitting 10 to be sequentially communicated, the collar joint 1, intermediate 5, flared type pipe The axial line of part 10 is located along the same line, and the hex nut block 2 is an integral structure with collar joint 1, the leading The shape of guide groove 3 is that bottom gradually tapers up arc-shaped, and the bottom of the preceding guiding groove 3 is provided with limited step, preceding sealing ring 4 Be fixed on limited step, the front-end and back-end of the intermediate 5 be outer end shrink inwardly it is arc-shaped, described One seal groove 7 is arranged at the middle part of 5 front end of intermediate, and the cross sectional shape of first sealing ring 6 is circle, first sealing It encloses 6 outermosts to be located at outside the first seal groove 7, second seal groove 9 is arranged close at the top of 5 rear end of intermediate, described second The cross sectional shape of seal 8 is circle, and 8 outermost of the second sealing ring is located at outside the second seal groove 9, first sealing ring 6 It is elastic seal ring with the second sealing ring 8, the shape of the rear guiding groove 11 is that bottom gradually tapers up arc-shaped, the pipe Part stop collar 12 is set in the outside of rear guiding groove 11, and the limiting slot 14 is set in the outside of pipe fitting stop collar 12, the card The right end lateral surface of shell type connector 1 is provided with flank, and 13 inside of the fastening nut is provided with flank, and the bite type connects First 1 and fastening nut 13 be fixed together by threaded engagement.
The course of work of the present invention:
The present invention is by by collar joint 1, hex nut block 2, preceding guiding groove 3, preceding sealing ring 4, intermediate 5, first Sealing ring 6, the first seal groove 7, the second sealing ring 8, the second seal groove 9, flared type pipe fitting 10, rear guiding groove 11, pipe fitting limit Set 12, fastening nut 13, limiting slot 14 are combined together, and by optimum experimental, flared type steel pipe pipe fitting can be made to use cutting ferrule Formula connects, and the advantages of having both ferrule-type compression joint and flared fitting, matching is strong, reasonable for structure, easy for installation, antivibration Dynamic, good airproof performance is less prone to the failures such as error leakage, and working condition is good, is conducive to promote and apply.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after Scheme all belong to the scope of protection of the present invention.

Claims (5)

1. a kind of bite type connection enlarging formula steel pipe pipe fitting, it is characterised in that:Including collar joint(1), hex nut block (2), preceding guiding groove(3), preceding sealing ring(4), intermediate(5), the first sealing ring(6), the first seal groove(7), the second sealing ring (8), the second seal groove(9), flared type pipe fitting(10), rear guiding groove(11), pipe fitting stop collar(12), fastening nut(13), limit Position slot(14), the collar joint(1)Outside is provided with hex nut block(2), the collar joint(1)It is internally provided with Preceding guiding groove(3), the preceding guiding groove(3)Bottom preceding sealing ring is installed(4), the intermediate(5)Front be provided with First seal groove(7), first seal groove(7)First sealing ring is inside installed(6), the intermediate(5)Rear portion setting There is the second seal groove(9), second seal groove(9)Second sealing ring is inside installed(8), the flared type pipe fitting(10)Before End is provided with rear guiding groove(11), the flared type pipe fitting(10)On be arranged with pipe fitting stop collar(12), the pipe fitting stop collar (12)Rear side be arranged with fastening nut(13), the fastening nut(13)Inside is provided with limiting slot(14), guided before described Slot(3)Shape be bottom gradually taper up arc-shaped, the preceding guiding groove(3)Bottom be provided with limited step, preceding sealing Circle(4)It is fixed on limited step.
2. a kind of bite type connection enlarging formula steel pipe pipe fitting as described in claim 1, it is characterised in that:The collar joint (1), intermediate(5), flared type pipe fitting(10)It is sequentially communicated, the collar joint(1), intermediate(5), flared type pipe fitting (10)Axial line be located along the same line, the hex nut block(2)With collar joint(1)It is an integral structure.
3. a kind of bite type connection enlarging formula steel pipe pipe fitting as described in claim 1, it is characterised in that:The intermediate(5) Front-end and back-end be that arc-shaped, first seal groove is shunk in outer end inwardly(7)It is arranged in intermediate(5)Front end Middle part, first sealing ring(6)Cross sectional shape be circle, first sealing ring(6)Outermost is located at the first seal groove (7)Outside, second seal groove(9)It is arranged in intermediate(5)The top of rear end, second sealing ring(8)Cross sectional shape For circle, second sealing ring(8)Outermost is located at the second seal groove(9)Outside, first sealing ring(6)With the second sealing Circle(8)It is elastic seal ring.
4. a kind of bite type connection enlarging formula steel pipe pipe fitting as described in claim 1, it is characterised in that:Guiding groove after described (11)Shape be bottom gradually taper up arc-shaped, the pipe fitting stop collar(12)It is set in rear guiding groove(11)Outside, The limiting slot(14)It is set in pipe fitting stop collar(12)Outside.
5. a kind of bite type connection enlarging formula steel pipe pipe fitting as described in claim 1, it is characterised in that:The collar joint (1)Right end lateral surface be provided with flank, the fastening nut(13)Inside is provided with flank, the collar joint (1)And fastening nut(13)It is fixed together by threaded engagement.
CN201611200228.0A 2016-12-22 2016-12-22 A kind of bite type connection enlarging formula steel pipe pipe fitting Active CN106523814B (en)

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CN201611200228.0A CN106523814B (en) 2016-12-22 2016-12-22 A kind of bite type connection enlarging formula steel pipe pipe fitting

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CN106523814B true CN106523814B (en) 2018-11-06

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108644189A (en) * 2018-04-23 2018-10-12 日丰企业(佛山)有限公司 Connecting pipe, tubes and pipes connecting method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2041757U (en) * 1988-12-06 1989-07-26 沈阳工程机械厂 High-pressure tube joint
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
CN104595599A (en) * 2015-01-07 2015-05-06 董增斌 Novel hydraulic pipe joint
CN205504291U (en) * 2016-04-11 2016-08-24 上海丽诺韵流体连接件有限公司 Flaring connects core
CN206386586U (en) * 2016-12-22 2017-08-08 海盐县海管管件制造有限公司 A kind of bite type connection enlarging formula steel pipe pipe fitting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000161553A (en) * 1998-11-26 2000-06-16 Sekisui Chem Co Ltd Pipe joint

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2041757U (en) * 1988-12-06 1989-07-26 沈阳工程机械厂 High-pressure tube joint
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
CN104595599A (en) * 2015-01-07 2015-05-06 董增斌 Novel hydraulic pipe joint
CN205504291U (en) * 2016-04-11 2016-08-24 上海丽诺韵流体连接件有限公司 Flaring connects core
CN206386586U (en) * 2016-12-22 2017-08-08 海盐县海管管件制造有限公司 A kind of bite type connection enlarging formula steel pipe pipe fitting

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