CN108050319A - A kind of metal straight pipe sealed fitting - Google Patents

A kind of metal straight pipe sealed fitting Download PDF

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Publication number
CN108050319A
CN108050319A CN201711402164.7A CN201711402164A CN108050319A CN 108050319 A CN108050319 A CN 108050319A CN 201711402164 A CN201711402164 A CN 201711402164A CN 108050319 A CN108050319 A CN 108050319A
Authority
CN
China
Prior art keywords
screw thread
external screw
straight pipe
metal straight
locking nut
Prior art date
Application number
CN201711402164.7A
Other languages
Chinese (zh)
Inventor
徐萍萍
Original Assignee
芜湖荣基实业有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 芜湖荣基实业有限公司 filed Critical 芜湖荣基实业有限公司
Priority to CN201711402164.7A priority Critical patent/CN108050319A/en
Publication of CN108050319A publication Critical patent/CN108050319A/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
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/04Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
    • 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
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/06Screw-threaded joints; Forms of screw-threads for such joints characterised by the shape of the screw-thread
    • 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
    • F16L19/0206Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
    • 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
    • F16L19/0212Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means

Abstract

The invention discloses a kind of metal straight pipe sealed fittings,Including the first metal straight pipe,Second metal straight pipe,Tube joint assembly and sealing ring,First metal straight pipe outer wall is equipped with external screw thread one,Second metal straight pipe outer wall is equipped with external screw thread two,The tube joint assembly is by direct cylinder,First locking nut and the second locking nut composition,Direct cylinder one end outer wall is equipped with external screw thread three,Other end outer wall is equipped with external screw thread four,Direct cylinder one end inner wall is equipped with threaded hole one,Other end inner wall is equipped with threaded hole two,External screw thread one is connected with threaded hole one,External screw thread two is connected with threaded hole two,First locking nut is connected with three screw pair of external screw thread,Second locking nut is connected with four screw pair of external screw thread,After the first locking nut and the second locking nut screwing,Sealing ring is firmly crushed on direct cylinder end,Independent compress for realizing both ends is tightly connected,Band is loosened by the secondary winding of double helix,It ensure that the compactness and leakproofness of connection.

Description

A kind of metal straight pipe sealed fitting

Technical field

The invention belongs to pipe fitting technical fields, and specifically, the present invention relates to a kind of metal straight pipe sealed fittings.

Background technology

Pipe fitting is the component between connecting tube and pipe in fluid delivery system.In the installation process of pipeline, such as from Water water pipe, fire main, natural gas line etc., some places duct length is not enough, it is necessary to be managed two using pipe fitting It connecting, current pipe fitting between ring flange exactly by setting washer, then by nut check, the additional stirrup having It reinforces, ensures its leakproofness, anti-seal in the form of a single, sealing effect is bad.

The content of the invention

The present invention provides a kind of metal straight pipe sealed fitting, and independent compress for realizing both ends is tightly connected, and passes through Band is loosened in the secondary winding of double helix, ensure that the compactness and leakproofness of connection.

To achieve these goals, the technical solution taken of the present invention is:A kind of metal straight pipe sealed fitting, including First metal straight pipe, the second metal straight pipe, tube joint assembly and sealing ring, the first metal straight pipe outer wall are equipped with external screw thread One, the second metal straight pipe outer wall is equipped with external screw thread two, and the tube joint assembly is by direct cylinder, the first locking nut and the Two locking nuts form, and direct cylinder one end outer wall is equipped with external screw thread three, and other end outer wall is equipped with external screw thread four, institute Direct cylinder one end inner wall is stated equipped with threaded hole one, other end inner wall is equipped with threaded hole two, the external screw thread one and screw thread Hole one connects, and the external screw thread two is connected with threaded hole two, and the sealing ring is located at direct cylinder two ends, first locking screw Mother is connected with three screw pair of external screw thread, and second locking nut is connected with four screw pair of external screw thread, first locking nut End is equipped with pressure ring one, and the second locking nut end is equipped with pressure ring two, is twisted in the first locking nut and the second locking nut Next, sealing ring is firmly crushed on direct cylinder end.

Preferably, the internal diameter of first metal straight pipe and the second metal straight pipe and the internal diameter phase in direct cylinder centre position Together.

Preferably, the external screw thread three is opposite with the hand of spiral of threaded hole one.

Preferably, the external screw thread four is opposite with the hand of spiral of threaded hole two.

It is using the advantageous effect of above technical scheme:The metal straight pipe sealed fitting, during use, first the Around band is above loosened on external screw thread one on one metal straight pipe outer wall, then the external screw thread one on the first metal straight pipe outer wall is screwed into In threaded hole one, then again on external screw thread three around band is above loosened, the first locking nut is then twisted, until the first locking screw female end Sealing ring is firmly pressed on the left end end of direct cylinder by the pressure ring one in portion, because the screw thread of the external screw thread three and threaded hole one On the contrary, so during the first locking nut screwing, external screw thread one is more stubborn tighter with threaded hole one in direction, is not in move back Screw;Then again on the external screw thread two on the second metal straight pipe outer wall around band is above loosened, then by the second metal straight pipe External screw thread two on outer wall is screwed into threaded hole two, then again on external screw thread four around band is above loosened, then twists the second locking screw Mother, until sealing ring is firmly pressed on the right end end of direct cylinder by the pressure ring two of the second locking nut end, because described outer The hand of spiral of screw thread four and threaded hole two is on the contrary, so during the second locking nut screwing, external screw thread two and screw thread Kong Eryue twists tighter, is not in move back screw, and independent compress for realizing both ends is tightly connected, and passes through the secondary winding of double helix Loosen band, ensure that the compactness and leakproofness of connection.

The internal diameter of first metal straight pipe and the second metal straight pipe is identical with the internal diameter in direct cylinder centre position, reduces stream Body flows through the resistance of pipe fitting.

Description of the drawings

Fig. 1 is the metal straight pipe sealed fitting attachment structure schematic diagram;

Wherein:

1st, the first metal straight pipe;2nd, the second metal straight pipe;3rd, tube joint assembly;4th, sealing ring;10th, external screw thread one;20th, it is outer Screw thread two;30th, direct cylinder;31st, external screw thread three;32nd, external screw thread four;33rd, threaded hole one;34th, threaded hole two;35th, the first locking Nut;35-1, pressure ring one;36th, the second locking nut;36-1, pressure ring two.

Specific embodiment

Below against attached drawing, by the description of the embodiment, making to the specific embodiment of the present invention further details of Explanation, it is therefore an objective to those skilled in the art be helped to have more complete, accurate and deep reason to design of the invention, technical solution Solution, and contribute to its implementation.

As shown in Figure 1, the present invention is a kind of metal straight pipe sealed fitting, realizes the independent of both ends and compress sealing company It connects, band is loosened by the secondary winding of double helix, ensure that the compactness and leakproofness of connection.

Specifically, as shown in Figure 1, including the first metal straight pipe 1, the second metal straight pipe 2, tube joint assembly 3 and sealing Circle 4,1 outer wall of the first metal straight pipe are equipped with external screw thread 1, and 2 outer wall of the second metal straight pipe is equipped with external screw thread two 20, the tube joint assembly 3 is made of direct cylinder 30, the first locking nut 35 and the second locking nut 36, the direct cylinder 30 One end outer wall is equipped with external screw thread 3 31, and other end outer wall is equipped with external screw thread 4 32, on direct 30 one end inner wall of cylinder Equipped with threaded hole 1, other end inner wall is equipped with threaded hole 2 34, and the external screw thread 1 is connected with threaded hole 1, institute It states external screw thread 2 20 to be connected with threaded hole 2 34, the sealing ring 4 is located at direct 30 two ends of cylinder, first locking nut 35 It is connected with 3 31 screw pair of external screw thread, second locking nut 36 is connected with 4 32 screw pair of external screw thread, first locking 35 end of nut is equipped with one 35-1 of pressure ring, and 36 end of the second locking nut is equipped with two 36-1 of pressure ring, in the first locking nut 35 and second locking nut 36 tighten after, sealing ring 4 is firmly crushed on direct 30 end of cylinder.

The internal diameter of first metal straight pipe, 1 and second metal straight pipe 2 is identical with the internal diameter in direct 30 centre position of cylinder.

The external screw thread 3 31 is opposite with the hand of spiral of threaded hole 1.

The external screw thread 4 32 is opposite with the hand of spiral of threaded hole 2 34.

Specific working mode is illustrated with specific embodiment below:

The metal straight pipe sealed fitting, during use, the first external screw thread 1 on 1 outer wall of the first metal straight pipe On around band is above loosened, then the external screw thread 1 on 1 outer wall of the first metal straight pipe is screwed into threaded hole 1, then again outside Around band is above loosened on screw thread 3 31, the first locking nut 35 is then twisted, until one 35-1 of pressure ring of 35 end of the first locking nut Sealing ring 4 is firmly pressed on to the left end end of direct cylinder 30, because the screw thread side of the external screw thread 3 31 and threaded hole 1 To on the contrary, so during the first locking nut 35 is tightened, external screw thread 1 is more stubborn tighter with threaded hole 1, will not go out Now move back screw;Then again on the external screw thread 2 20 on 2 outer wall of the second metal straight pipe around band is above loosened, then by the second gold medal The external screw thread 2 20 belonged on 2 outer wall of straight tube is screwed into threaded hole 2 34, then again on external screw thread 4 32 around band is above loosened, then The second locking nut 36 is twisted, until sealing ring 4 is firmly pressed on direct cylinder by two 36-1 of pressure ring of 36 end of the second locking nut 30 right end end, because the hand of spiral of the external screw thread 4 32 and threaded hole 2 34 is on the contrary, in the second locking nut During 36 tighten, external screw thread 2 20 is more stubborn tighter with threaded hole 2 34, is not in move back screw, realizes both ends Independent compress is tightly connected, and loosens band by the secondary winding of double helix, ensure that the compactness and leakproofness of connection.

The internal diameter of first metal straight pipe, 1 and second metal straight pipe 2 is identical with the internal diameter in direct 30 centre position of cylinder, drop Low fluid flows through the resistance of pipe fitting.

The present invention is exemplarily described above in association with attached drawing, it is clear that the present invention implements and from above-mentioned side The limitation of formula, as long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress;Or not It is improved, the above-mentioned design of the present invention and technical solution are directly applied into other occasions, in protection scope of the present invention Within.

Claims (4)

1. a kind of metal straight pipe sealed fitting, it is characterised in that:Including the first metal straight pipe (1), the second metal straight pipe (2), tube joint assembly (3) and sealing ring (4), the first metal straight pipe (1) outer wall are equipped with external screw thread one (10), and described the Two metal straight pipes (2) outer wall is equipped with external screw thread two (20), and the tube joint assembly (3) is by direct cylinder (30), the first locking screw Female (35) and the second locking nut (36) form, and direct cylinder (30) one end outer wall is equipped with external screw thread three (31), and in addition one Outer wall is held to be equipped with external screw thread four (32), direct cylinder (30) one end inner wall is equipped with threaded hole one (33), in other end Wall is equipped with threaded hole two (34), and the external screw thread one (10) is connected with threaded hole one (33), the external screw thread two (20) and spiral shell Pit two (34) connects, and the sealing ring (4) is located at direct cylinder (30) two ends, first locking nut (35) and external screw thread Three (31) screw pairs connect, and second locking nut (36) is connected with external screw thread four (32) screw pair, first locking screw Female (35) end is equipped with pressure ring one (35-1), and the second locking nut (36) end is equipped with pressure ring two (36-1), in the first lock After tight nut (35) and the second locking nut (36) are tightened, sealing ring (4) is firmly crushed on direct cylinder (30) end.
2. a kind of metal straight pipe sealed fitting according to claim 1, it is characterised in that:First metal straight pipe (1) and the internal diameter of the second metal straight pipe (2) is identical with the internal diameter in direct cylinder (30) centre position.
3. a kind of metal straight pipe sealed fitting according to claim 1, it is characterised in that:The external screw thread three (31) It is opposite with the hand of spiral of threaded hole one (33).
4. a kind of metal straight pipe sealed fitting according to claim 1, it is characterised in that:The external screw thread four (32) It is opposite with the hand of spiral of threaded hole two (34).
CN201711402164.7A 2017-12-22 2017-12-22 A kind of metal straight pipe sealed fitting CN108050319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711402164.7A CN108050319A (en) 2017-12-22 2017-12-22 A kind of metal straight pipe sealed fitting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711402164.7A CN108050319A (en) 2017-12-22 2017-12-22 A kind of metal straight pipe sealed fitting

Publications (1)

Publication Number Publication Date
CN108050319A true CN108050319A (en) 2018-05-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711402164.7A CN108050319A (en) 2017-12-22 2017-12-22 A kind of metal straight pipe sealed fitting

Country Status (1)

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CN (1) CN108050319A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442106A (en) * 2018-12-17 2019-03-08 宁波世峻汽配科技有限公司 A kind of refrigerant pipe that air conditioning for automobiles is leakage-preventing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2221698Y (en) * 1995-03-06 1996-03-06 俞宪能 Pipe joint
WO2011008690A1 (en) * 2009-07-14 2011-01-20 HDD Rotary Sales LLC Threaded tool joint connection
CN202708384U (en) * 2012-08-23 2013-01-30 四川川润液压润滑设备有限公司 Non-welding flaring type seal pipe joint structure
CN204141093U (en) * 2014-09-18 2015-02-04 庞浩佳 Two screw connection structures of thin-wall stainless steel and pipe joint
CN106104131A (en) * 2014-02-27 2016-11-09 桑杜科技有限公司 face seal fitting

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2221698Y (en) * 1995-03-06 1996-03-06 俞宪能 Pipe joint
WO2011008690A1 (en) * 2009-07-14 2011-01-20 HDD Rotary Sales LLC Threaded tool joint connection
CN202708384U (en) * 2012-08-23 2013-01-30 四川川润液压润滑设备有限公司 Non-welding flaring type seal pipe joint structure
CN106104131A (en) * 2014-02-27 2016-11-09 桑杜科技有限公司 face seal fitting
CN204141093U (en) * 2014-09-18 2015-02-04 庞浩佳 Two screw connection structures of thin-wall stainless steel and pipe joint

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109442106A (en) * 2018-12-17 2019-03-08 宁波世峻汽配科技有限公司 A kind of refrigerant pipe that air conditioning for automobiles is leakage-preventing

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Application publication date: 20180518