CN100419326C - Socket pipe piece of heat melted connection - Google Patents
Socket pipe piece of heat melted connection Download PDFInfo
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- CN100419326C CN100419326C CNB2006100360040A CN200610036004A CN100419326C CN 100419326 C CN100419326 C CN 100419326C CN B2006100360040 A CNB2006100360040 A CN B2006100360040A CN 200610036004 A CN200610036004 A CN 200610036004A CN 100419326 C CN100419326 C CN 100419326C
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Abstract
The present invention discloses a socket pipe piece of heat melted connection for an aluminum-plastic compound pipe. At least one end of a joint of the pipe piece is provided with an adjacent socket segment and a connecting segment of an inner layer, wherein the back part of the socket segment is provided with an exhaust observation hole, and the length of the heat melted connection of an inner and an outer layers of the joint in an axial direction are unequal. The present invention fully solves an exhaust problem which is generated when the aluminum-plastic compound pipe and the socket pipe piece are in heat melted connection. Because the pipe piece adopts structures of the socket segment and the connecting segment of the inner layer, the present invention has the advantages of reliable heat melted connection between the pipe piece and the aluminum-plastic compound pipe, high intensity, good sealing performance, convenient operation and low manufacture cost.
Description
Technical field
The present invention relates to plastic-aluminum combined pipe connected pipe fitting technical field, particularly a kind of plastic-aluminum combined effective socket pipe piece of heat melted connection.
Background technique
Existing aluminium-plastic composite pipe hot melt pipe fitting has two kinds of modes, a kind of is outer welding mode, promptly carrying out hot melt at the skin of pipe with the internal layer of hot melt pipe fitting is connected, this Placement generally is applied to common plastic tube hot melt and connects, when being applied to aluminium-plastic composite pipe,, easily aluminium alloy layer is produced corrosion during line transportation liquid owing to the aluminium alloy layer of plastic-aluminum combined tube opening is not carried out encapsulation process, cause the tubing absciss layer, greatly reduce the Safety performance that pipeline uses.
Another kind is an internal and external layer welding mode, is that the Chinese utility model patent of CN2644848Y promptly discloses this welding mode as notification number.This mode is that pipe fitting joint one end is provided with the birdsmouth between its inside and outside ring wall, and be equipped with lining in the internal ring wall inboard, when socket joint connects, heat treated is carried out in the end of joint birdsmouth and aluminium-plastic composite pipe, aluminium-plastic composite pipe is injected in this birdsmouth then, can make the composite pipe welding in birdsmouth.The hot melt area of this pipe fitting joint birdsmouth is bigger, it is long to connect length, promptly, the isometric hot melt of external annulus, the birdsmouth inwall is indeformable during for guarantee hot melt and insertion, must add metal lining at the interior ring inwall of birdsmouth, increased the manufacture cost of pipe fitting, though this mode is carried out encapsulation process to the aluminium alloy layer of plastic-aluminum combined tube opening, easily aluminium alloy layer is produced the problem of corrosion when having overcome line transportation liquid, but it is big that the socket joint of this pipe fitting connects area, hot melt length is long, when pipe is inserted birdsmouth, must form the pressurized air space in the birdsmouth, when being squeezed into birdsmouth, the birdsmouth insertion end of tube and tube spare has been in the state of being tightly connected, pressurized air in the birdsmouth can't be discharged, thereby forms the pressurized air space in the birdsmouth, certainly leads to empty molten or rosin joint phenomenon, as easy as rolling off a log at hot melt junction surface generation bubble absciss layer, directly reduce the join strength of pipe fitting.Simultaneously, the cause for gossip of accepting described in the above-mentioned patented technology scheme is a darker annular blind hole, can't observe pipe and be inserted into end whether arrived at this blind hole bottom when hot melt connects, thereby influence quality and the intensity that its hot melt connects.
Summary of the invention
The object of the present invention is to provide a kind of hot melt connect reliable, intensity is big, good seal performance, saving material, low cost of manufacture and easy to operate plastic-aluminum combined effective socket pipe piece of heat melted connection.
The present invention adopts following technological scheme: a kind of socket pipe piece of heat melted connection, and at least one end of this pipe fitting has a joint, and described joint 1 at least one end is provided with adjacent draws socket joint section 5 and individual layer linkage section by axial distance; Described socket joint section 5 is provided with outer shroud 1-1 and interior ring 1-2; Described socket joint section 5 outer shroud 1-1 rear portions are provided with the exhaust peep hole 2 of radial equipartition.
Described individual layer linkage section can be internal layer linkage section 6, and at this moment, internal layer linkage section 6 is the isometrical extension of interior ring 1-2 of socket joint section 5; Also can be outer linkage section 7, at this moment, the isometrical extension of outer shroud 1-1 that outer linkage section 7 is a socket joint section 5.
Constitute an annular joint socket 3 between the outer shroud 1-1 of described socket joint section 5 and the interior ring 1-2.
Described outer shroud 1-1 rear portion is provided with 2-4 exhaust peep hole 2.
The hot melt of described individual layer linkage section connects the hot melt connection axial length of axial length greater than described socket joint section 5.
Compared with prior art, the present invention has following remarkable result:
Because at least one end of described joint is provided with socket joint section and internal layer linkage section adjacent and that divide with axial distance, the socket joint section is interior, be provided with an annular joint socket between the outer shroud, during connection, ring surface is connected with plastic-aluminum combined tube end internal layer inner face hot melt in the socket joint section, socket joint section outer shroud inner face is connected with plastic-aluminum combined tube end superficies hot melt, owing to have the exhaust peep hole of a plurality of radial equipartitions at the outer shroud rear portion, both the pressurized air that can in time the hot melt connection procedure be sealed up for safekeeping in joint socket was in time discharged atmosphere, avoid producing empty molten or rosin joint and produce the phenomenon of bubble absciss layer at the hot melt junction surface, make aluminium-plastic composite pipe combine more closely with pipe fitting, make the anti-folding of pipe fitting joint and tension dial switching performances such as intensity and improve greatly; The operation quality of hot melt attended operation be can improve again,, thereby the operation quality and the join strength of its hot melt attended operation improved because can realize that by the exhaust peep hole whether pipe has been inserted the joint socket bottom is observed.
Another remarkable result of the present invention is: save the tube material cost.Because described joint internal and external layer weld length do not wait, i.e. ring and isometrical extension---the axial length of internal layer linkage section is unequal mutually in the outer shroud of joint socket and the joint socket, this can save the cost that pipe fitting connects material.Be: described joint can conveniently be determined main junction surface, and realizes the rational division of work of primary and secondary junction surface.Main junction surface is to bear the main stress surface that pipe fitting connects, inferior junction surface is only born the task of the aluminium alloy layer of plastic-aluminum combined tube opening being carried out encapsulation process, as follows junction surface is long, not only increases cost of material, also owing to not outstanding main junction surface reduces whole join strength.Simultaneously, because described joint has reduced the area that hot melt connects effectively, when giving the heating of hot melt pipe fitting, both easy heating-up temperatures of control connection face, guarantee in heating process, to encircle in the pipe fitting indeformable again, thereby need not add metal lining at the interior ring inwall of joint socket, saved tube material cost and cost of production.
As seen, the present invention has solved the exhausting problem that is produced when aluminium-plastic composite pipe is connected with the pipe fitting hot melt fully and has been connected the operation quality problem with the raising hot melt, thereby, improve reliability, sealing and join strength that its hot melt connects greatly.
Description of drawings
Fig. 1 is a kind of socket pipe piece of heat melted connection structural representation of the present invention, and the linkage section of individual layer shown in the figure is an internal layer linkage section 6.
Fig. 2 is a socket pipe piece of heat melted connection shown in Figure 1 and structural representation after the aluminium-plastic composite pipe hot melt is connected.
Fig. 3 is the another kind of socket pipe piece of heat melted connection of the present invention and structural representation after the aluminium-plastic composite pipe hot melt is connected, and the linkage section of individual layer shown in the figure is outer linkage section 7.
Embodiment
By following embodiment the present invention is further elaborated.
Referring to Fig. 1, shown in Figure 2, an a kind of end of plastic-aluminum combined effective socket pipe piece of heat melted connection is a joint 1, this joint 1 is made up of the internal layer linkage section 6 of front end and adjacent with it socket joint section 5, internal layer linkage section 6 is isometrical and be connected as one with the interior ring 1-2 of socket joint section 5, socket joint section 5 is provided with outer shroud 1-1 and interior ring 1-2, form an annular joint socket 3 between inner and outer rings 1-2, the 1-1, outer shroud 1-1 rear portion is evenly equipped with 4 exhaust peep holes 2 radially on same circumference.The axial length of internal layer linkage section 6 is longer than socket joint section 5, internal layer linkage section 6 is formed the main junction surface that hot melt is connected with the outer ring surface of interior ring 1-2, the inner ring surface of outer shroud 1-1 is the end-blocking face of aluminium-plastic composite pipe 4, belong to time junction surface, internal layer linkage section 6 waits wall thickness with the pipe ring of interior ring 1-2 is isometrical, and the wall thickness of its wall ratio outer shroud 1-1 is thick.
When hot melt connects, the internal layer linkage section 6 of aluminium-plastic composite pipe 4 end internal layer 4-2, outer 4-1 and correspondence heats by special tool with outer ring surface and the outer shroud 1-1 inner ring surface of the interior ring 1-2 of socket joint section 5, then aluminium-plastic composite pipe 4 is inserted annular joint socket 3, the outer ring surface of the interior ring 1-2 of the socket joint section 5 of aluminium-plastic composite pipe 4 end internal layer 4-2, outer 4-1 and correspondence and the outer ring surface of outer shroud 1-1 inner ring surface and internal layer linkage section 6 realize that hot melt is connected.Whether in reflow process, the air in the annular joint socket 3 is drained from exhaust peep hole 2 rapidly, and observe connection by a plurality of exhaust peep holes 2 and put in place, and it is more reliable to guarantee that hot melt connects.
Referring to shown in Figure 3, with embodiment 1 relatively, present embodiment has following difference on joint 1 structure:
The individual layer linkage section of joint 1 adopts outer linkage section 7, the isometrical extension of outer shroud 1-1 that this skin linkage section 7 is a socket joint section 5.
All the other structures are identical with embodiment 1.The axial length of outer linkage section 7 is longer than the axial length of socket joint section 5, outer linkage section 7 is formed the main junction surface that hot melt is connected with the inner ring surface of outer shroud 1-1, the outer ring surface of interior ring 1-2 is the end-blocking face of aluminium-plastic composite pipe 4, belong to time junction surface, outer linkage section 7 waits wall thickness with the pipe ring of outer shroud 1-1 is isometrical, and ring 1-2 is thick in its wall ratio.
When hot melt connects, aluminium-plastic composite pipe 4 end internal layer 4-2, outer 4-1 and corresponding outer layer linkage section 7 heat by special tool with the outer shroud 1-1 inner ring surface and the interior ring 1-2 outer ring surface of socket joint section 5, then aluminium-plastic composite pipe 4 is inserted annular joint socket 3, the inner ring surface of aluminium-plastic composite pipe 4 end internal layer 4-2, outer 4-1 and the outer shroud 1-1 of the socket joint section 5 of correspondence and the inner ring surface of interior ring 1-2 outer ring surface and outer linkage section 7 realize that hot melt is connected.Whether in reflow process, the air in the annular joint socket 3 is drained from exhaust port 2 rapidly, and observe connection by a plurality of exhaust peep holes 2 and put in place, and it is more reliable to guarantee that hot melt connects.
Claims (6)
1. socket pipe piece of heat melted connection, at least one end of this pipe fitting has a joint, it is characterized in that: at least one end of described joint (1) is provided with adjacent socket joint section (5) and the individual layer linkage section of dividing by axial distance; Described socket joint section (5) is provided with outer shroud (1-1) and interior ring (1-2); Described socket joint section (5) outer shroud (1-1) rear portion is provided with the exhaust peep hole (2) of radial equipartition.
2. socket pipe piece of heat melted connection according to claim 1 is characterized in that: described individual layer linkage section is internal layer linkage section (6), the isometrical extension of interior ring (1-2) that this internal layer linkage section (6) is a socket joint section (5).
3. socket pipe piece of heat melted connection according to claim 1 is characterized in that: described individual layer linkage section is outer linkage section (7), the isometrical extension of outer shroud (1-1) that this skin linkage section (7) is socket joint section (5).
4. socket pipe piece of heat melted connection according to claim 1 is characterized in that: constitute an annular joint socket (3) between the outer shroud (1-1) of described socket joint section (5) and the interior ring (1-2).
5. socket pipe piece of heat melted connection according to claim 1 is characterized in that: described outer shroud (1-1) rear portion is provided with the exhaust peep hole (2) of 2-4 radial equipartition.
6. according to claim 1 or 2 or 3 described socket pipe piece of heat melted connection, it is characterized in that: the hot melt of described individual layer linkage section connects the hot melt connection axial length of axial length greater than described socket joint section (5).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100360040A CN100419326C (en) | 2006-06-15 | 2006-06-15 | Socket pipe piece of heat melted connection |
| PCT/CN2006/002653 WO2007147298A1 (en) | 2006-06-15 | 2006-10-10 | A hot-melt connecting socket pipe fitting and the connecting method of the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100360040A CN100419326C (en) | 2006-06-15 | 2006-06-15 | Socket pipe piece of heat melted connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1873283A CN1873283A (en) | 2006-12-06 |
| CN100419326C true CN100419326C (en) | 2008-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100360040A Active CN100419326C (en) | 2006-06-15 | 2006-06-15 | Socket pipe piece of heat melted connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100419326C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10166618B2 (en) | 2016-01-15 | 2019-01-01 | International Business Machines Corporation | Heat stop for brazing or soldering |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201858446U (en) * | 2010-02-03 | 2011-06-08 | 杨蒙 | Fastening type pipe fitting |
| NL2005306C2 (en) * | 2010-09-02 | 2012-03-05 | Tersia Nederland B V | CONNECTOR FOR MULTI-LAYER PIPES, WELDING DEVICE FOR CONNECTING THE CONNECTOR TO MULTI-LAYER PIPES, METHOD OF CONNECTING AND A COMPOSITION OBTAINED VIA THE METHOD. |
| CN104930291A (en) * | 2015-07-07 | 2015-09-23 | 孙圣县 | Hot melt pipe fitting |
| CN106465587A (en) * | 2016-08-29 | 2017-03-01 | 山东胜伟园林科技有限公司 | A kind of hidden pipe jointing for alkaline land soil improvement |
| CN110015486B (en) * | 2019-04-22 | 2023-07-07 | 广东省林格科技集团有限公司 | Hollow metal foot pier and manufacturing method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311480A (en) * | 1997-05-09 | 1998-11-24 | Nkk Corp | Flange joint for synthetic resin pipe |
| CN2644847Y (en) * | 2003-09-12 | 2004-09-29 | 嵊州市中力管业有限公司 | Multiple tubes bell and spigout joint |
| CN2736629Y (en) * | 2004-09-20 | 2005-10-26 | 王占奎 | Sealing sleeve for composite tube soldering |
-
2006
- 2006-06-15 CN CNB2006100360040A patent/CN100419326C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311480A (en) * | 1997-05-09 | 1998-11-24 | Nkk Corp | Flange joint for synthetic resin pipe |
| CN2644847Y (en) * | 2003-09-12 | 2004-09-29 | 嵊州市中力管业有限公司 | Multiple tubes bell and spigout joint |
| CN2736629Y (en) * | 2004-09-20 | 2005-10-26 | 王占奎 | Sealing sleeve for composite tube soldering |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10166618B2 (en) | 2016-01-15 | 2019-01-01 | International Business Machines Corporation | Heat stop for brazing or soldering |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1873283A (en) | 2006-12-06 |
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| 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 | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 528000 Guangdong province Foshan City Temple Road No. 16 on Fung Building Patentee after: RIFENG ENTERPRISE GROUP CO., LTD. Address before: 528000 Guangdong province Foshan City Temple Road No. 16 on Fung Building Patentee before: Rifeng Enterprise Co., Ltd., Foshan |