CN102654223A - Axial cold-extruding type pipeline connection device with trough - Google Patents
Axial cold-extruding type pipeline connection device with trough Download PDFInfo
- Publication number
- CN102654223A CN102654223A CN2012101171874A CN201210117187A CN102654223A CN 102654223 A CN102654223 A CN 102654223A CN 2012101171874 A CN2012101171874 A CN 2012101171874A CN 201210117187 A CN201210117187 A CN 201210117187A CN 102654223 A CN102654223 A CN 102654223A
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- type joint
- bush
- bush type
- external pressure
- pressure pipe
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Abstract
The invention belongs to the technical field of connection, and relates to an axial cold-extruding type pipeline connection device with a trough, and the connection device is used for connection of aviation pipelines. The connection device comprises two external pressure pipe sleeves and a bush-type joint; the external pressure pipe sleeve is a cylinder with a central through hole; the inner wall of the bush-type joint is provided with three annular grooves; and the outer wall of the bush on the annular groove is thickened to form a micro bulge. During installation, conduits are respectively placed in the bush-type joint; as a certain interference exists between the external pressure pipe sleeve and the bush-type joint and a structure with two teeth and three troughs is partially processed on the inner surface of the bush-type joint, the contact position of the bush-type joint with two teeth and three troughs and the conduit deforms continuously, so that the bush-type joint and the conduit are tightly extruded and pipeline connection with a certain connection strength is formed. Therefore, the connection strength of pipeline connection is enhanced and the operating requirements of pipeline connection requiring high voltage withstand and high strength is met for aviation products.
Description
Technical field
The invention belongs to the interconnection technique field, a kind of of connection who is used for the aviation pipeline has fluted shaft to the cold xtrusion pipeline connecting device.
Background technique
At present, known cold hobbing pipeline Placement is outside fastening-pressing type, has only the bush type joint and does not have the external pressure pipe box; Connection is directly to be withheld by the outside through instrument, remove the instrument of withholding after, the plastic deformation through the bush type joint keeps magnitude of interference; And join strength mainly relies on the frictional force between the link, and therefore, its join strength is less; Reliability is relatively poor, can only be used for the less demanding pipeline of join strength and connect, and can't satisfy the high join strength requirement that the aeronautical product upper pipeline connects.
Summary of the invention
The objective of the invention is to propose a kind of can satisfy that high join strength that the aeronautical product upper pipeline connects requires fluted shaft is arranged to the cold xtrusion pipeline connecting device.Technical solution of the present invention is; Fluted shaft is arranged to the cold xtrusion pipeline connecting device; Comprise two external pressure pipe boxes and bush type joint, it is characterized in that: the external pressure pipe box is the cylindrical body of a band central through bore, and the outer rim of this cylindrical end has the step of a circular protrusion to form the load crossette; The central through bore of external pressure pipe box is in that to have load crossette end opening-like, and the joint that this opening shape forms the bush type joint imports end; The bush type joint also is the cylindrical body of a band center hole; These cylindrical two ends have one section thin-walled cylinder; thin-walled cylinder imports end to the overcoat that tapered inclined-plane, the middle part of bush type joint forms the external pressure tube cover; the importing end has three annular grooves and forms two tooth three-flute structures on the inwall at the middle part of bush type joint, and on the outer wall of two tooth three-flute locations of structures, forms the microprotrusion that height is 0.2mm～0.8mm, and the outer rim middle part of bush type joint is provided with the spacing crossette of a circular protrusion; Be interference fit between the cylindrical outer diameter of the diameter of the central through bore of external pressure pipe box and bush type joint.
Described bush type joint outer wall thickness confirms that according to the external diameter and the wall thickness on connected tube road the wall thickness of thin-walled cylinder is 30%～60% of a bush type joint outer wall thickness.
Form two tooth three-flute structures on the inwall at described bush type joint middle part, the width of its each groove is 1mm～5mm, degree of depth 0.2mm～0.7mm, the facewidth 1mm that forms between two grooves～5mm.
The bottom surface of two the most inboard grooves in the described two tooth three-flute structures is an inclined-plane.
It is permanent linkage structure that the present invention has groove cold hobbing linkage structure, mainly comprises external pressure pipe box, bush type joint, two-part composition.Only need conduit be respectively charged into the bush type joint during installation; With special assembling tool the external pressure pipe box is assembled at a slow speed on the bush type joint vertically by force, owing to exist certain magnitude of interference between external pressure pipe box and the bush type joint, and the partial operation of bush type joint internal surface becomes two tooth three-flute structures; Therefore after the assembling; Two tooth three-flute structure bush type joints and conduit contact position produce continuous deformation, make bush type joint and conduit by pinched together tightly, form the pipeline with certain join strength and connect; Make the join strength of pipeline not only rely on frictional force; Also derive from the deformation force and destruction pulling force of lining and pipeline, thereby improved the join strength that pipeline connects, satisfy the usage requirement that high withstand voltage high-intensity pipeline connects on the aeronautical product.The present invention can improve join strength and the sealing that the cold xtrusion pipeline connects, the connection that can use high-strength material pipelines such as aviation stainless steel, and other is connected the higher pipeline of join strength and sealing requirements.
Description of drawings
Fig. 1 is the structural representation of the external pressure pipe box of apparatus of the present invention;
Fig. 2 is the structural representation of the bush type joint of apparatus of the present invention;
Fig. 3 is the linkage structure erection drawing of apparatus of the present invention.
Embodiment
Shown in accompanying drawing 1～3; The axial cold xtrusion pipeline connecting device of this kind; Comprise two external pressure pipe boxes 1 and bush type joint 2, external pressure pipe box 1 is the cylindrical body of a band central through bore 13, and the outer rim of this cylindrical end has the step of a circular protrusion to form load crossette 11; The central through bore 13 of external pressure pipe box 1 is in that to have load crossette 11 ends opening-like, and the joint that this opening shape forms bush type joint 2 imports end 12;
Between the diameter of the central through bore 13 of external pressure pipe box 1 and the cylindrical outer wall 27 of bush type joint 2 is interference fit.
During connection; Insert two conduits 3 that need to connect in the center hole 23 of bush type joint 2 from two ends respectively; There is the gap between the center hole 23 of conduit 3 and bush type joint 2; Again the overcoat importing end 22 of two external pressure pipe boxes 1 from the two ends of bush type joint 2 is inserted in, applies axial force relatively, be sleeved on external pressure pipe box 1 on the bush type joint 2 at a slow speed by force with the load crossette 11 of assembly tool on two external pressure pipe boxes 1; Load crossette 11 on external pressure pipe box 1 contacts with the spacing crossette 21 at bush type joint 2 middle parts; Stop to apply power, because the diameter dimension of the central through bore 13 of external pressure pipe box 1 is less than cylindrical outer wall 27 sizes of bush type joint 2, the axial force that produces in the process of press in makes microprotrusion 26 distortion of bush type joint 2; Cause two tooth three-flute structures to embed conduit 3 outer walls, thereby through the mechanical connection between external pressure pipe box 1 and two conduits 3 of bush type joint 2 realizations.
Technological scheme of the present invention compared with prior art can improve join strength and sealing that pipeline connects, and the high tenacity that can be used in aviation stainless steel pipeline connects.
Claims (4)
1. one kind has fluted shaft to the cold xtrusion pipeline connecting device; It is characterized in that: comprise two external pressure pipe boxes (1) and bush type joint (2); External pressure pipe box (1) is the cylindrical body of a band central through bore (13); The outer rim of this cylindrical end has the step of a circular protrusion to form load crossette (11), and the central through bore (13) of external pressure pipe box (1) is in that to have load crossette (11) end opening-like, and the joint that this opening shape forms bush type joint (2) imports end (12);
Bush type joint (2) also is the cylindrical body of a band center hole (23); These cylindrical two ends have one section thin-walled cylinder (24); thin-walled cylinder (24) imports end (22) to the overcoat that tapered inclined-plane, the middle part of bush type joint (2) forms the external pressure tube cover; import end (22) and on the inwall at the middle part of bush type joint (2), have three annular grooves and form two tooth three-flute structures (25); and go up the microprotrusion (26) that forms a height 0.2mm～0.8mm at the outer wall (27) of two tooth three-flute structure (25) positions, and the outer rim middle part of bush type joint (2) is provided with the spacing crossette (21) of a circular protrusion;
Between cylindrical outer wall (27) diameter of the diameter of the central through bore (13) of external pressure pipe box (1) and bush type joint (2) is interference fit.
2. according to claim 1 a kind ofly have fluted shaft to the cold xtrusion pipeline connecting device; It is characterized in that: described bush type joint (2) outer wall (27) thickness confirms that according to the external diameter and the wall thickness on connected tube road the wall thickness of thin-walled cylinder (24) is 30%～60% of bush type joint (2) outer wall (a 27) thickness.
3. according to claim 1 a kind ofly have fluted shaft to the cold xtrusion pipeline connecting device; It is characterized in that: form two tooth three-flute structures (25) on the inwall at described bush type joint (2) middle part; The width of its each groove is 1mm～5mm; Degree of depth 0.2mm～0.7mm, the facewidth 1mm that forms between two grooves～5mm.
4. according to claim 1 a kind ofly have fluted shaft to the cold xtrusion pipeline connecting device, it is characterized in that: the bottom surface of two the most inboard grooves in the described two tooth three-flute structures (25) is an inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101171874A CN102654223A (en) | 2012-04-19 | 2012-04-19 | Axial cold-extruding type pipeline connection device with trough |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101171874A CN102654223A (en) | 2012-04-19 | 2012-04-19 | Axial cold-extruding type pipeline connection device with trough |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102654223A true CN102654223A (en) | 2012-09-05 |
Family
ID=46729899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101171874A Pending CN102654223A (en) | 2012-04-19 | 2012-04-19 | Axial cold-extruding type pipeline connection device with trough |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102654223A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112066103A (en) * | 2020-10-10 | 2020-12-11 | 大连长之琳科技发展有限公司 | Axial extrusion type connecting pipe joint assembly and pipe joint formed by same |
| US11060652B2 (en) | 2017-12-22 | 2021-07-13 | ASC Engineered Solutions, LLC | Malleable press fittings |
| CN114294490A (en) * | 2021-12-01 | 2022-04-08 | 国营芜湖机械厂 | 24-degree flareless conduit pipe sleeve assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827727A (en) * | 1969-11-14 | 1974-08-06 | K Moebius | Constrictor ring and tube joint |
| GB1521820A (en) * | 1976-12-15 | 1978-08-16 | Moebius K | Lockring joint |
| US4482174A (en) * | 1980-09-15 | 1984-11-13 | Lokring | Apparatus and method for making a tube connection |
| WO2000060265A1 (en) * | 1999-03-31 | 2000-10-12 | Haener Technologies | Device for connecting pipes |
| WO2002059518A1 (en) * | 2001-01-26 | 2002-08-01 | Mapress Gmbh & Co. Kg | Pipe coupling |
| CN1095965C (en) * | 1997-07-25 | 2002-12-11 | 蓬塔穆松公司 | Device for connecting two pipe fittings and pipe connector using the same |
| CN101137862B (en) * | 2005-02-24 | 2011-03-30 | 洛克林技术有限公司 | Improved fitting with sequential sealing action and method for connecting the fitting to pipeline |
-
2012
- 2012-04-19 CN CN2012101171874A patent/CN102654223A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3827727A (en) * | 1969-11-14 | 1974-08-06 | K Moebius | Constrictor ring and tube joint |
| GB1521820A (en) * | 1976-12-15 | 1978-08-16 | Moebius K | Lockring joint |
| US4482174A (en) * | 1980-09-15 | 1984-11-13 | Lokring | Apparatus and method for making a tube connection |
| CN1095965C (en) * | 1997-07-25 | 2002-12-11 | 蓬塔穆松公司 | Device for connecting two pipe fittings and pipe connector using the same |
| WO2000060265A1 (en) * | 1999-03-31 | 2000-10-12 | Haener Technologies | Device for connecting pipes |
| WO2002059518A1 (en) * | 2001-01-26 | 2002-08-01 | Mapress Gmbh & Co. Kg | Pipe coupling |
| CN101137862B (en) * | 2005-02-24 | 2011-03-30 | 洛克林技术有限公司 | Improved fitting with sequential sealing action and method for connecting the fitting to pipeline |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11060652B2 (en) | 2017-12-22 | 2021-07-13 | ASC Engineered Solutions, LLC | Malleable press fittings |
| CN112066103A (en) * | 2020-10-10 | 2020-12-11 | 大连长之琳科技发展有限公司 | Axial extrusion type connecting pipe joint assembly and pipe joint formed by same |
| CN112066103B (en) * | 2020-10-10 | 2021-05-25 | 大连长之琳科技发展有限公司 | Axial extrusion type connecting pipe joint assembly and pipe joint formed by same |
| CN114294490A (en) * | 2021-12-01 | 2022-04-08 | 国营芜湖机械厂 | 24-degree flareless conduit pipe sleeve assembly |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120905 |