CN103562611B - Pipe fitting for connecting polypropylene pipe and metal pipe - Google Patents

Pipe fitting for connecting polypropylene pipe and metal pipe Download PDF

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Publication number
CN103562611B
CN103562611B CN201280024347.9A CN201280024347A CN103562611B CN 103562611 B CN103562611 B CN 103562611B CN 201280024347 A CN201280024347 A CN 201280024347A CN 103562611 B CN103562611 B CN 103562611B
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CN
China
Prior art keywords
pipe
counterpart
housing
polypropylene
pipe fitting
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.)
Expired - Fee Related
Application number
CN201280024347.9A
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Chinese (zh)
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CN103562611A (en
Inventor
帕沃·艾多德维奇·麦呢科夫
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Watanko Co Ltd
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CN103562611A publication Critical patent/CN103562611A/en
Application granted granted Critical
Publication of CN103562611B publication Critical patent/CN103562611B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/20Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
    • F16L47/24Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics for joints between metal and plastics pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Gasket Seals (AREA)

Abstract

The present invention relates to a pipe fitting. A pipe fitting for connecting a polypropylene pipe and a metal pipe comprising: a hollow body made of polypropylene and having an integral element for connection to a polypropylene pipe, the opening of said element passing therethrough into the internal cavity of the body; and an insert in the form of a sleeve made of a metal alloy and having a tube section embedded in the body and a protruding tube section. The inner cavity of the insert communicates with the inner cavity of the body. The end face of the tube section of the insert, which is embedded in the body, has an annular groove, which is arranged in the vicinity of the inner surface, has an inner cylindrical side face, in which an annular element made of a solid, flexible sealing material is arranged, which is connected to the groove base and is compressed under a pressure corresponding to the compaction pressure of the body. Technical effects include expanding the range of pipe fittings, being able to connect to both polypropylene pipes and metal pipes, and improving the service life and safety of the pipes by reducing the likelihood of leakage.

Description

For connecting the pipe fitting of polypropylene pipe and metallic conduit
Technical field
The invention belongs to building field, more particularly to the pipe that can be connected with polypropylene pipe and metallic conduit simultaneously Road accessory, the i.e. transition piece as accessory from polypropylene pipe to metallic conduit, such as T junction, Cruciform joint, tap, connecting tube joint, delta connection, especially with wall-mounted union nut, pipeline mistake Filter, valve, welding seat form with formed polypropylene pipe branch, as water system element or The wall pieces being connected with blender.The water system of the building of some residential architectures and other different purposes and heating system Above-mentioned pipe fitting can be used on the polypropylene pipe of system and metallic conduit.
Background technology
The known pipe fitting being connected with polypropylene pipe and metallic conduit is for being provided with for by polypropylene pipe The externally threaded transition metal part connected with metallic conduit, it includes hollow body, and this hollow body is embedded in one In the assembly parts of form of sleeve, this sleeve be made up of metal alloy and with the inner space (system of main body Ekoplastik PPR, Balakrishnan company internal hot and cold water supply systems in 2009 and heating system catalogue, Page 9, it is provided with outer metal threaded transition conduit).
Main body is integrally provided with the body lumen opened wide in the side contrary with counterpart position, to connect on it Being provided with the polypropylene pipe of the nose section form of inside and outside cylindrical surface, this surface is mainly used in welding polypropylene The housing of pipeline, and the end of polypropylene pipe housing is welded in nose section.Counterpart is provided with prominent tube Point, its outer surface is provided with the threaded portion of tubulose to connect metallic conduit or metal tube.
The counterpart leading to main body on an internal surface has larger diameter portion, on its larger diameter portion and lean on The counterpart of nearly smaller diameter portion is provided with groove recessed for above-mentioned larger diameter portion.Bigger Diameter portion and groove are filled by polypropylene material, and this polypropylene material is arranged to flush with smaller diameter portion, To form mechanical join domain.
In this region, when the temperature generating period of the medium transported changes, poly-third near counterpart The mechanical interface of alkene layer is susceptible to depart from, (pyrite, bronze, no this is because polypropylene and metal combination part Rust steel) thermal coefficient of expansion different.Polyacrylic separation and deformation in various degree, torsion load, pulling force are born Lotus, pressure load can cause by main body and the seepage of the join domain of counterpart.The seepage of water can't be at once Occur after equipment is installed, and may send out because of polyacrylic the most aging after the use of 3-5 The seepage of unboiled water.As a result, the micro chink between counterpart and main body may increase.
Seepage not only occurs in the pipe fitting with externally threaded transition metal part form, and occurs with poly-third In the pipe fitting of the similar structures that alkene pipeline and metallic conduit connect, the especially mistake between metal insert and nut Cross (page 9 of above-mentioned regulation), be provided with an angle of 90 degrees spider (the 10 of above-mentioned regulation of metal external thread Page), and it is provided with the welding base (page 12 of above-mentioned regulation) of metal external thread.
Summary of the invention
The present invention has expanded the accessory of the pipeline for different application, and it can not only connect polypropylene pipe and gold Metal conduit, and reliability can be improve by reducing the probability of seepage and extend useful life.
The above-mentioned technique effect of the present invention is joined by a kind of pipeline for connecting polypropylene pipe and metallic conduit Part provides, comprising:
-the hollow shell be made up of polypropylene, it has and integrally-formed connects for connecting polypropylene pipe Part, the hole of this connector and the inner space of housing;
-at least one form is the counterpart of the sleeve being made up of metal alloy, the inner chamber of described counterpart and shell The inner chamber of body communicates, and described counterpart has the ledge of part and the tubulose being embedded in housing.
Being provided with ring-shaped groove near the part being embedded in the housing surface within it of counterpart, it has cylindricality Inner surface.
In ring-shaped groove and with the position of its bottom connection, to be provided with the annular being made up of elastic compacting material close Envelope element, it is compressed under the pressure corresponding to casing moulds pressure.
In a preferred embodiment, the degree of depth of ring-shaped groove is at least not less than being made up of elastic compacting material The half of the thickness of ring-type element.
The elastic compacting material of ring-type element can be Ethylene-Propylene-Diene rubber, nitrile rubber, silicone rubber or Fluorubber.
Counterpart can be made up of bronze, pyrite or rustless steel.
In a preferred embodiment, the part being embedded in housing of counterpart is provided with for the material with housing Material forms other element of extra mechanism, radial rib the most on its outer surface and/or be positioned at end Longitudinally projecting portion on face.
The prominent tubular portion of counterpart can be formed with external screw thread.This prominent tubular portion can be installed On union nut.
Accompanying drawing explanation
It is provided with metal external thread part below by being formed as of can being connected with polypropylene pipe and metallic conduit The object lesson of pipe fitting illustrates embodiments of the invention.
Fig. 1 shows the longitudinal sectional view of product.
Fig. 2 shows counterpart, is wherein provided with the annular section of potted component of elastic compacting material along longitudinally It is partly broken off illustrating.
Detailed description of the invention
The pipe fitting of the present invention includes the housing 1 being made up of polypropylene.This housing 1 has inner chamber 2 and therewith Shape all-in-one-piece is for connecting the connector 3 of polypropylene pipe (not shown), the hole 4 of connector 3 and housing The inner chamber 2 of 1 connects.This housing 1 also includes counterpart, its form be by metal alloy (bronze, it is also possible to Use pyrite or rustless steel) sleeve 5 made.
Counterpart 5 includes the mating part 6 embedded within the case 1, and the pipe stretched out with external screw thread 8 Shape part 7.The inner chamber 9 of counterpart 5 communicates with the inner chamber 2 of housing 1.Counterpart 5 be embedded into housing 1 In mating part 6 there is in end face 10 ring-shaped groove 12 being near the inner surface 11 of counterpart 5, The ring-type element 13 being made up of elaxtic seal be positioned at ring-shaped groove and with its bottom connection.Ring-shaped groove The degree of depth of 12 is at least not less than the half of the thickness of ring-type element 13.Preferably, the degree of depth of ring-shaped groove 12 Equal to the thickness of ring-type element 13 2-2.5 times.The encapsulant of ring-type element 13 can use ethylene-propylene -diene rubber, nitrile rubber, silicone rubber or fluorubber.The cross section of ring-type element 13 can be circular, it is possible to To be rectangle (including square) or other shape.The bottom of ring-shaped groove 12 can be to be formed with sidewall Right angle, or rounding.
Ring-type element 13 is arranged in ring-shaped groove 12 with matched in clearance, and at the compression mould corresponding to housing 1 Being compressed under the pressure of power processed, this occurs in the manufacture process of injection machine.Ring-type element 13 eliminates air Enter the probability of ring-shaped groove 12.The component 6 being embedded in housing 1 of counterpart 5 be provided with for With the element that the material of housing forms extra mechanism, such as, it is located at the radial rib 14 of its outer surface, For providing counterpart bonding strength within the case 1, and it is located at the longitudinally projecting portion 15(figure at end face 10 2), for providing counterpart 5 and the bonding strength of housing 1 by applying load torque.
After the use of 3-5, the micro chink between counterpart 5 and polypropylene casing 1 gradually expands, because of This ring-type element 13 can become the obstacle of current.On the one hand the complicated shape of counterpart 5 makes it sending out (in the inside of accessory, once there is surface seep in water level, water must be through to extend water route during raw seepage as much as possible Cross all of groove could flow out).On the other hand, for the consideration of economic interests, in view of the material of counterpart Price in polypropylene, therefore the size of counterpart 5 should minimize.
According to the present invention, the manufacture of all parts is carried out according to known technology by suitable material.
Above-mentioned example non-exclusive.As it has been described above, there is other connecting joint (T meeting claims Shape joint, transition conduit, delta connection, cruciform joint, tap, connecting tube joint, angle coupling), pipe Gathering of the suspension type element of road transport of filter, valve, welding seat, water distribution system or connection blender Propylene pipes and metallic conduit.

Claims (5)

1. for connecting the pipe fitting of polypropylene pipe and metallic conduit, including: hollow housing, its tool Having the connector for connecting polypropylene pipe that at least one is integrally-formed, the hole of described connector is with described The inner space of housing;And at least one counterpart, its form is the sleeve being made up of metal alloy, in it Chamber also inner chamber with described housing communicates, and has the part being embedded in described housing and prominent tube Point,
Wherein, the part being embedded in described housing of described counterpart is provided with cannelure, described annular at end face Groove is arranged on the vicinity of the inner surface of described counterpart, is wherein disposed with the annular being made up of elastic compacting material close Sealing, described lip ring is compressed under the pressure of the molding pressure corresponding to described housing,
It is characterized in that, the degree of depth of described ring-shaped groove is at least not less than the half of the thickness of described ring-type element.
Pipe fitting the most according to claim 1, it is characterised in that the material of described ring-type element is Ethylene-Propylene-Diene rubber, nitrile rubber, silicone rubber or fluorubber.
Pipe fitting the most according to claim 1, it is characterised in that described counterpart is by bronze, yellow Copper or rustless steel are made.
Pipe fitting the most according to claim 1, it is characterised in that described counterpart be embedded in institute State the part in housing and be provided with other element for forming extra mechanism with the material of described housing, bag Include radial rib on its outer surface and/or the longitudinally projecting portion being positioned on end face.
Pipe fitting the most according to claim 1, it is characterised in that the prominent pipe of described counterpart Shape part is provided with external screw thread.
CN201280024347.9A 2011-09-26 2012-08-10 Pipe fitting for connecting polypropylene pipe and metal pipe Expired - Fee Related CN103562611B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU2011139198/06A RU2476754C1 (en) 2011-09-26 2011-09-26 Element of pipeline fittings capable of connection with polypropylene and metal pipes
RU2011139198 2011-09-26
PCT/RU2012/000661 WO2013048287A1 (en) 2011-09-26 2012-08-10 Pipe fitting element for connecting a polypropylene pipe and a metal pipe

Publications (2)

Publication Number Publication Date
CN103562611A CN103562611A (en) 2014-02-05
CN103562611B true CN103562611B (en) 2016-08-17

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Application Number Title Priority Date Filing Date
CN201280024347.9A Expired - Fee Related CN103562611B (en) 2011-09-26 2012-08-10 Pipe fitting for connecting polypropylene pipe and metal pipe

Country Status (5)

Country Link
CN (1) CN103562611B (en)
EA (1) EA022334B1 (en)
RU (1) RU2476754C1 (en)
UA (1) UA106020C2 (en)
WO (1) WO2013048287A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5689916B2 (en) * 2013-04-01 2015-03-25 株式会社ブリヂストン Pipe fitting
CN105697899A (en) * 2016-03-18 2016-06-22 广东联塑科技实业有限公司 Copper insert structure for preventing seepage
CN105736865B (en) * 2016-04-27 2017-10-03 东莞市卓益塑胶制品有限公司 A kind of waterpipe couplings and water purifier
US10744527B2 (en) 2016-08-23 2020-08-18 Viking Group, Inc. Low torque sprinkler fitting and method of manufacture
CN109357101A (en) * 2018-12-06 2019-02-19 上海乔治费歇尔亚大塑料管件制品有限公司 A large-diameter 3PE steel-plastic conversion pipe fitting and its manufacturing method
CA3206616A1 (en) 2021-02-17 2022-08-25 Minimax Viking Research & Development Gmbh Fire protection systems and methods using fire protection devices installed in pipe fittings with an internally housed seal member
WO2024192457A1 (en) * 2023-03-22 2024-09-26 Henn Gmbh & Co Kg. Connecting sleeve and method for producing a connecting sleeve

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US5509911A (en) * 1992-11-27 1996-04-23 Maxxim Medical, Inc. Rotating adapter for a catheterization system
CN1122886A (en) * 1995-05-08 1996-05-22 陈启松 Self-locking quick pipe connector
GB2349929A (en) * 1999-05-14 2000-11-15 Hepworth Building Prod Pipe fitting
CN201159357Y (en) * 2008-03-03 2008-12-03 南京菲时特管业有限公司 Polypropylene copper insert for cold and hot water
CN201202922Y (en) * 2008-05-30 2009-03-04 浙江伟星新型建材股份有限公司 Plastic pipe sealing joint
CN201314419Y (en) * 2008-12-18 2009-09-23 江苏唯益换热器有限公司 Pipe joint for coolant side of plate-type heat exchanger
RU96213U1 (en) * 2009-10-19 2010-07-20 Общество С Ограниченной Ответственностью "Альтерпласт" COMBINED PLASTIC AND METAL FITTING FOR TRANSITION FROM PLASTIC PIPELINE TO METAL PIPELINE
CN102095042A (en) * 2009-12-15 2011-06-15 肖忠贤 Cone-shaped sealing ring of plastic nut
CN201964061U (en) * 2011-04-15 2011-09-07 南京晨光集团有限责任公司 Pipe connector for high-temperature and high-pressure fuel gas system
RU108544U1 (en) * 2011-03-09 2011-09-20 Общество с ограниченной ответственностью "ПРОМСЕРВИС" FITTINGS FOR POLYPROPYLENE PIPES MODERNIZED

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ATE223012T1 (en) * 1997-05-30 2002-09-15 Oystertec Plc CONNECTING ELEMENT FOR CONNECTING TUBULAR ELEMENTS
CN2553225Y (en) * 2002-07-18 2003-05-28 漆烨 Special-purpose blocking composite copper-plastic pipe fitting for aluminium plastic pipe
JP5401979B2 (en) * 2008-12-25 2014-01-29 三菱樹脂株式会社 Pipe fitting
CN201462301U (en) * 2009-07-30 2010-05-12 上海龙胜实业有限公司 Improved plastic metal pipe fitting
RU91130U1 (en) * 2009-10-30 2010-01-27 Общество С Ограниченной Ответственностью "Альтерпласт" METAL FITTING CONNECTION ASSEMBLY WITH POLYPROPYLENE PIPE AND PARTS KIT FOR ITS ASSEMBLY

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5509911A (en) * 1992-11-27 1996-04-23 Maxxim Medical, Inc. Rotating adapter for a catheterization system
CN1122886A (en) * 1995-05-08 1996-05-22 陈启松 Self-locking quick pipe connector
GB2349929A (en) * 1999-05-14 2000-11-15 Hepworth Building Prod Pipe fitting
CN201159357Y (en) * 2008-03-03 2008-12-03 南京菲时特管业有限公司 Polypropylene copper insert for cold and hot water
CN201202922Y (en) * 2008-05-30 2009-03-04 浙江伟星新型建材股份有限公司 Plastic pipe sealing joint
CN201314419Y (en) * 2008-12-18 2009-09-23 江苏唯益换热器有限公司 Pipe joint for coolant side of plate-type heat exchanger
RU96213U1 (en) * 2009-10-19 2010-07-20 Общество С Ограниченной Ответственностью "Альтерпласт" COMBINED PLASTIC AND METAL FITTING FOR TRANSITION FROM PLASTIC PIPELINE TO METAL PIPELINE
CN102095042A (en) * 2009-12-15 2011-06-15 肖忠贤 Cone-shaped sealing ring of plastic nut
RU108544U1 (en) * 2011-03-09 2011-09-20 Общество с ограниченной ответственностью "ПРОМСЕРВИС" FITTINGS FOR POLYPROPYLENE PIPES MODERNIZED
CN201964061U (en) * 2011-04-15 2011-09-07 南京晨光集团有限责任公司 Pipe connector for high-temperature and high-pressure fuel gas system

Also Published As

Publication number Publication date
RU2476754C1 (en) 2013-02-27
EA022334B1 (en) 2015-12-30
CN103562611A (en) 2014-02-05
WO2013048287A1 (en) 2013-04-04
EA201300640A1 (en) 2013-09-30
UA106020C2 (en) 2014-07-10

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20171222

Address after: Brescia Italy

Patentee after: Watanko Co., Ltd.

Address before: Russia St Petersburg

Patentee before: The husband of Pa Woaiduo Devi Qi Maine section

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160817

Termination date: 20200810