CN102679068A - Joint-rotatable polytetrafluoroethylene hose assembly and preparation method thereof - Google Patents
Joint-rotatable polytetrafluoroethylene hose assembly and preparation method thereof Download PDFInfo
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- CN102679068A CN102679068A CN201210154529XA CN201210154529A CN102679068A CN 102679068 A CN102679068 A CN 102679068A CN 201210154529X A CN201210154529X A CN 201210154529XA CN 201210154529 A CN201210154529 A CN 201210154529A CN 102679068 A CN102679068 A CN 102679068A
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- connecting piece
- metal connecting
- joint
- steel wire
- teflon
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Abstract
The invention relates to a joint-rotatable polytetrafluoroethylene hose assembly and a preparation method thereof. The joint-rotatable polytetrafluoroethylene hose assembly is formed in a way that metal connections are assembled on both ends of a steel-wire-braided polytetrafluoroethylene inner pipe.. The preparation method comprises the following specific steps: selecting a polytetrafluoroethylene inner pipe having a certain inner diameter to carry out steel wire braiding, and ensuring that the outer wall thereof is coated with a crosswise-braided steel wire layer; determining the length of a product, and cutting; arranging a metal connection sleeve outside the crosswise-braided steel wire layer; connecting a metal connection joint and a metal connection nut; inserting the metal connection joint equipped with the metal connection nut into the inner wall on one end of the polytetrafluoroethylene inner pipe, combining the metal connection sleeve arranged outside the crosswise-braided steel wire layer with the metal connection joint, and ensuring that the crosswise-braided steel wire layer is positioned between the metal connection sleeve and the metal connection joint without loosening phenomena; and buckling the metal connection sleeve on both ends to obtain the required product. The obtained product can normally work under the pressure of 21 MPa or below for a long time and ensure the sealing and pull-off prevention effect; and the joint can be rotated freely, thereby facilitating the use and maintenance on outdoor field.
Description
Technical field
The present invention relates to rotatable polytetrafluoroethylhose hose assembly of a kind of joint and preparation method thereof.
Background technique
The steel wire reinforced polytetrafluoroethylspiral hose has been widely used in the Aeronautics and Astronautics field, has characteristics such as high-low temperature resistant, corrosion-resistant, ageing-resistant, in light weight, life-span be long.Be mainly used in the transmission of medium as a kind of flexible conduit, use in systems such as all kinds of space flight, aviation aircraft hydraulic pressure, fuel oil, lubricating oil, cold air, alcohol at present.
According to the structural feature of polytetrafluoroethylhose hose assembly, each constituent element reaches sealing through the mold pressing distortion and tension is taken off effect, and therefore, the joint at two ends can't rotate.In recent years, along with the develop rapidly of China's Aviation Industry, also increasingly high to the requirement of polytetrafluoroethylhose hose assembly.When satisfying sealing and tension and taking off effect, also requirement can reach the effect that joint can rotate freely, thereby makes things convenient for the working service in outfield.
Summary of the invention
The object of the present invention is to provide rotatable polytetrafluoroethylhose hose assembly of a kind of joint and preparation method thereof; Products obtained therefrom can bear certain working pressure (≤21MPa); Reach sealing and tension and take off effect, joint can rotate freely again, makes things convenient for the working service in outfield.
The rotatable polytetrafluoroethylhose hose assembly of joint that the present invention proposes is made up of pipe 5 in the steel wire floor 4 of metal connecting piece nut 1, metal connecting piece joint 2, metal connecting piece sleeve 3, interlacing and the teflon.Metal connecting piece joint 2 afterbodys are connected to form by semicircle boss and continuous wave groove, and the semicircle boss plays turning effort, and continuous wave groove plays sealing and tension is taken off effect; Pipe 5 is the hollow tubular structure in middle part in the teflon; Pipe 5 outer walls are coated with the steel wire floor 4 of interlacing in the teflon; The tail structure of metal connecting piece joint 2 inserts pipe 5 two ends inwalls in the teflon; Metal connecting piece 3 sleeves are placed in the interior pipe of teflon 5 two ends of the steel wire floor 4 that is coated with interlacing, and metal connecting piece nut 1 links to each other with metal connecting piece joint 2.
Among the present invention, the teflon inner tube diameter is φ 4mm to φ 28mm.
The preparation method of the rotatable polytetrafluoroethylhose hose assembly of joint that the present invention proposes, concrete steps are following:
1. the interior pipe of teflon of choosing certain internal diameter carries out braided steel wire, makes its outer wall be coated with the steel wire floor of interlacing;
2. confirm the length of polytetrafluoroethylhose hose assembly, cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing;
3, the metal connecting piece sleeve is placed outside the steel wire floor of interlacing;
4. the metal connecting piece joint is connected with the metal connecting piece nut;
5. the metal connecting piece joint that will be furnished with the metal connecting piece nut inserts Guan Yiduan inwall in the teflon; And will place the steel wire floor metal connecting piece sleeve and the metal connecting piece joint outward of interlacing combined; The steel wire floor that guarantees interlacing between metal connecting piece sleeve and metal connecting piece joint, the non-loosening phenomenon;
6. according to the profile of metal connecting piece tail structure the metal connecting piece sleeve is withheld; The polytetrafluoroethylhose hose assembly of this moment reaches sealing and tension is taken off effect; Profile after metal connecting piece sleeve 3 is withheld and metal connecting piece tail structure basically identical; Only the wave groove is changed into straightly, and the metal connecting piece joint can rotate freely with respect to the metal connecting piece sleeve, promptly obtains required product.
The internal diameter of the rotatable polytetrafluoroethylhose hose assembly of joint provided by the invention is φ 4mm ~ φ 28mm, can be for a long time under the pressure of≤21MPa proper functioning, guarantee that sealing and tension take off effect, and joint can rotate freely, make things convenient for the working service in outfield.
Description of drawings
Fig. 1 is a structural diagrams of the present invention.
Fig. 2 is the tail structure diagram of metal connecting piece joint 2.
Fig. 3 is the form structure diagram after withholding.
Label among the figure: 1 is the metal connecting piece nut, and 2 is the metal connecting piece joint, and 3 is the metal connecting piece sleeve, and 4 is the steel wire floor of interlacing, and 5 is pipe in the teflon.
Embodiment
Combine accompanying drawing to further specify the present invention through embodiment below.
Embodiment 1:
The internal diameter specification is that the preparation process of the rotatable polytetrafluoroethylhose hose assembly of joint of φ 4mm is following:
1. choose internal diameter and be that pipe carries out braided steel wire in the teflon of φ 4mm, make its outer wall be coated with the steel wire floor of interlacing;
2. the length of supposition polytetrafluoroethylhose hose assembly is 500mm, cuts out a piece of cloth in a way with the minimum material to make two or more articles of clothing;
3. the metal connecting piece sleeve is placed outside the steel wire floor of interlacing;
4. the metal connecting piece joint is connected with the metal connecting piece nut;
5. the metal connecting piece joint that will be furnished with the metal connecting piece nut inserts Guan Yiduan inwall in the teflon; And will place the steel wire floor metal connecting piece sleeve and the metal connecting piece joint outward of interlacing combined; The steel wire floor that guarantees interlacing between metal connecting piece sleeve and metal connecting piece joint, the non-loosening phenomenon;
6. the metal connecting piece sleeve at two ends is withheld, promptly obtained required product.
Process the rotatable polytetrafluoroethylhose hose assembly of joint that specification is φ 4mm through above-mentioned steps, length is 500mm.This product can be for a long time under the pressure of≤21MPa proper functioning, guarantee that sealing and tension take off effect, and joint can rotate freely, make things convenient for the working service in outfield.
Embodiment 2:
The internal diameter specification is that the preparation process of the rotatable polytetrafluoroethylhose hose assembly of joint of φ 28mm is following:
1. choose internal diameter and be that pipe carries out braided steel wire in the teflon of φ 28mm, make its outer wall be coated with the steel wire floor of interlacing;
2. the length of supposition polytetrafluoroethylhose hose assembly is 500mm, cuts out a piece of cloth in a way with the minimum material to make two or more articles of clothing;
3. the metal connecting piece sleeve is placed outside the steel wire floor of interlacing;
4. the metal connecting piece joint is connected with the metal connecting piece nut;
5. the metal connecting piece joint that will be furnished with the metal connecting piece nut inserts Guan Yiduan inwall in the teflon; And will place the steel wire floor metal connecting piece sleeve and the metal connecting piece joint outward of interlacing combined; The steel wire floor that guarantees interlacing between metal connecting piece sleeve and metal connecting piece joint, the non-loosening phenomenon;
6. the metal connecting piece sleeve at two ends is withheld, promptly obtained required product.
Process the rotatable polytetrafluoroethylhose hose assembly of joint that specification is φ 28mm through above-mentioned steps, length is 500mm.This product can be for a long time under the pressure of≤21MPa proper functioning, guarantee that sealing and tension take off effect, and joint can rotate freely, make things convenient for the working service in outfield.
Claims (3)
1. rotatable polytetrafluoroethylhose hose assembly of joint; Steel wire floor (4) and the interior pipe of teflon (5) by metal connecting piece nut (1), metal connecting piece joint (2), metal connecting piece sleeve (3), interlacing are formed; It is characterized in that metal connecting piece joint (2) afterbody is connected to form by semicircle boss and continuous wave groove; The semicircle boss plays turning effort, and continuous wave groove plays sealing and tension is taken off effect; Pipe (5) is the hollow tubular structure in middle part in the teflon; Pipe (5) outer wall is coated with the steel wire floor (4) of interlacing in the teflon; The tail structure of metal connecting piece joint (2) inserts pipe (5) two ends inwall in the teflon; Metal connecting piece (3) sleeve is placed in the interior pipe of teflon (5) two ends of the steel wire floor (4) that is coated with interlacing, and metal connecting piece nut (1) links to each other with metal connecting piece joint (2).
2. the rotatable polytetrafluoroethylhose hose assembly of joint according to claim 1 is characterized in that pipe (5) internal diameter is φ 4mm to φ 28mm in the teflon.
3. rotatable polytetrafluoroethylhose hose assembly of joint as claimed in claim 1 is characterized in that concrete steps are following:
(1). the interior pipe of teflon of choosing certain internal diameter carries out braided steel wire, makes its outer wall be coated with the steel wire floor of interlacing;
(2). confirm the length of polytetrafluoroethylhose hose assembly, cut out a piece of cloth in a way with the minimum material to make two or more articles of clothing;
(3). the metal connecting piece sleeve is placed outside the steel wire floor of interlacing;
(4). the metal connecting piece joint is connected with the metal connecting piece nut;
(5). the metal connecting piece joint that will be furnished with the metal connecting piece nut inserts Guan Yiduan inwall in the teflon; And will place the steel wire floor metal connecting piece sleeve and the metal connecting piece joint outward of interlacing combined; The steel wire floor that guarantees interlacing between metal connecting piece sleeve and metal connecting piece joint, the non-loosening phenomenon;
(6). the profile according to the metal connecting piece tail structure is withheld the metal connecting piece sleeve; Polytetrafluoroethylhose hose assembly reaches sealing and tension is taken off effect; Profile after the metal connecting piece sleeve is withheld and metal connecting piece tail structure basically identical; Only the wave groove is changed into straightly, and the metal connecting piece joint can rotate freely with respect to the metal connecting piece sleeve, promptly obtains required product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210154529XA CN102679068A (en) | 2012-05-18 | 2012-05-18 | Joint-rotatable polytetrafluoroethylene hose assembly and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210154529XA CN102679068A (en) | 2012-05-18 | 2012-05-18 | Joint-rotatable polytetrafluoroethylene hose assembly and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102679068A true CN102679068A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210154529XA Pending CN102679068A (en) | 2012-05-18 | 2012-05-18 | Joint-rotatable polytetrafluoroethylene hose assembly and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903573A (en) * | 2012-11-07 | 2015-09-09 | 阿贝尔基金会 | Ocean thermal energy conversion power plant |
| CN106499881A (en) * | 2016-11-16 | 2017-03-15 | 上海市塑料研究所有限公司 | Kevlar fiber reinforcement polytetrafluoroethylhose hose assemblies and preparation method thereof |
| CN109277773A (en) * | 2018-10-22 | 2019-01-29 | 沈阳兴华航空电器有限责任公司 | A kind of sealing-in assembly method shielding hose |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215980A (en) * | 1968-09-11 | 1970-12-16 | Dunlop Co Ltd | Improvements in hose end fittings |
| CN1351238A (en) * | 2000-10-30 | 2002-05-29 | 林郭祥 | Pivot unit and rotary joint therewith |
| CN2632457Y (en) * | 2003-06-06 | 2004-08-11 | 陈佰江 | Rotary bath flexible pipe |
| CN1834520A (en) * | 2005-03-18 | 2006-09-20 | 郭文礼 | Tap joint structure |
| CN201739669U (en) * | 2010-08-23 | 2011-02-09 | 中国航空动力机械研究所 | Fuel manifold |
| CN202091718U (en) * | 2011-06-10 | 2011-12-28 | 上海市塑料研究所 | Fire-proof polytetrafluoroethylene flexible pipe assembly |
-
2012
- 2012-05-18 CN CN201210154529XA patent/CN102679068A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215980A (en) * | 1968-09-11 | 1970-12-16 | Dunlop Co Ltd | Improvements in hose end fittings |
| CN1351238A (en) * | 2000-10-30 | 2002-05-29 | 林郭祥 | Pivot unit and rotary joint therewith |
| CN2632457Y (en) * | 2003-06-06 | 2004-08-11 | 陈佰江 | Rotary bath flexible pipe |
| CN1834520A (en) * | 2005-03-18 | 2006-09-20 | 郭文礼 | Tap joint structure |
| CN201739669U (en) * | 2010-08-23 | 2011-02-09 | 中国航空动力机械研究所 | Fuel manifold |
| CN202091718U (en) * | 2011-06-10 | 2011-12-28 | 上海市塑料研究所 | Fire-proof polytetrafluoroethylene flexible pipe assembly |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104903573A (en) * | 2012-11-07 | 2015-09-09 | 阿贝尔基金会 | Ocean thermal energy conversion power plant |
| CN104903573B (en) * | 2012-11-07 | 2021-11-02 | 阿贝尔基金会 | Ocean thermal energy conversion power station |
| CN106499881A (en) * | 2016-11-16 | 2017-03-15 | 上海市塑料研究所有限公司 | Kevlar fiber reinforcement polytetrafluoroethylhose hose assemblies and preparation method thereof |
| CN109277773A (en) * | 2018-10-22 | 2019-01-29 | 沈阳兴华航空电器有限责任公司 | A kind of sealing-in assembly method shielding hose |
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Application publication date: 20120919 |