CN201764147U - Electromagnetic welding double-seal pipe fitting connecting structure - Google Patents
Electromagnetic welding double-seal pipe fitting connecting structure Download PDFInfo
- Publication number
- CN201764147U CN201764147U CN2010202475248U CN201020247524U CN201764147U CN 201764147 U CN201764147 U CN 201764147U CN 2010202475248 U CN2010202475248 U CN 2010202475248U CN 201020247524 U CN201020247524 U CN 201020247524U CN 201764147 U CN201764147 U CN 201764147U
- Authority
- CN
- China
- Prior art keywords
- ring wall
- steel
- pipe fitting
- welding
- pipe
- 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
Links
Images
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The utility model discloses an electromagnetic welding double-seal pipe fitting connecting structure, which belongs to a pipeline connecting structure and overcomes the shortages that steel-plastic composite pipes with full specification are hard to weld in the existing welding structures, leakage after welding can not be repaired, and hole shrinkage after welding is severe. The connecting structure comprises a pipe fitting and a steel-plastic composite pipe, the pipe fitting is provided with at least one welding end made of plastics and consisting of an inner ring wall, an outer ring wall and a socket formed between the inner ring wall and the outer ring wall, the steel-plastic composite pipe inserted in the socket is welded with the inner ring wall and the outer ring wall, and the thickness of the inner ring wall is smaller than that of the outer ring wall. When the connecting structure is used for connection, the steel-plastic composite pipe is firstly inserted into the socket of the pipe fitting, and then a steel pipe layer of the insertion portion is heated in an inductive manner for welding to guarantee double-side sealing. The inner ring wall forming the socket can be manufactured to be thinner, so that the inner diameter of the steel-plastic composite pipe is closer to that of the welding end of the pipe fitting reduce hole shrinkage. Further, if the welding quality is poor, the insertion portion can be repaired by the aid of secondary heating.
Description
Technical field
The utility model belongs to pipe connecting structure, especially a kind of elder generation inserts steel-plastic composite pipe in the birdsmouth of pipe fitting and again the steel pipe layer of plugging position is implemented the molten double-sealing pipe fitting linkage structure of electromagnetism that electromagnetic induction heating realizes welding, is used for the steel-plastic composite pipes of system and being connected of pipe fitting such as air feed, plumbing, chemical industry, heating power.
Background technique
At present, realize that by plastics being heated to molten state the method for welding has following two kinds usually:
1, pegs graft behind the hot melt: earlier plastic tube or steel-plastic composite pipe (normally are made of inner plastic layer, middle steel pipe layer, outer plastic layer, the structural type that also comprises one deck plastic layer and one deck steel pipe layer), the sidewall of pipe fitting birdsmouth is heated to molten state, again plastic tube or steel-plastic composite pipe are inserted in the birdsmouth of pipe fitting and realize welding.This welding process since when pegging graft plastics be molten state, easily therefore off normal and produce molten knurl is applicable to the welding to small-bore plastic tube and steel-plastic composite pipe more, and is unsuitable for bigbore plastic tube or steel-plastic composite pipe are implemented connection.
2, the back electric smelting of pegging graft: be to be shaped on electric fuse in the sidewall of pipe fitting birdsmouth in advance, energising makes the electric fuse heating produce the heat molten plastic to realize welding to electric fuse to treat to insert in the birdsmouth of pipe fitting the back by pipe.This method is owing to need be shaped on electric fuse in advance in the sidewall of pipe fitting birdsmouth, therefore require the sidewall of pipe fitting birdsmouth to have certain thickness, therefore be suitable for the connection of heavy caliber pipe is not suitable for small-bore pipe is connected so that lay electric fuse; Simultaneously, because welding need rely on the persistent fever of electric fuse, therefore be unfavorable for steel-plastic composite pipe is carried out welding (the steel pipe layer that may cause electric fuse contact steel-plastic composite pipe this moment cause short circuit and be difficult to persistent fever implement welding).
Yet as widely used steel-plastic composite pipe in the market, above-mentioned two kinds of methods all are difficult to the steel-plastic composite pipe of full specification is carried out welding, and can't remedy when seepage occurring after the welding; Undergauge is serious.
The model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition be overcome existing welding structure be difficult to use in when steel-plastic composite pipe to full specification carries out seepage occurring after welding and the welding can't remedy, defective that undergauge is serious, provide a kind of electromagnetism to melt double-sealing pipe fitting linkage structure.For this reason, the utility model is by the following technical solutions:
Electromagnetism melts double-sealing pipe fitting linkage structure, comprise pipe fitting and steel-plastic composite pipe, described pipe fitting has at least one welding end that comprises internal ring wall, external annulus and be formed on the birdsmouth between described internal ring wall and the external annulus that is made of plastics, described steel-plastic composite pipe is plugged in the described birdsmouth and with described internal ring wall, external annulus and fuses, and it is characterized in that: the thickness of described internal ring wall is less than the thickness of described external annulus.
As the optimization technique measure, internal ring wall and described external annulus are isometric.
As the optimization technique measure, the end of internal ring wall is the inwall of thin wall shape fusion at steel-plastic composite pipe.
As the optimization technique measure, the end of described steel-plastic composite pipe is plugged on behind the enlarging full circle in the described birdsmouth and with described internal ring wall, external annulus and fuses.
The beneficial effects of the utility model are:
Earlier steel-plastic composite pipe is inserted in the birdsmouth of pipe fitting when 1, connecting, again the steel pipe layer of plugging position is implemented induction heating and realize welding, easy to implement, do not need pipe fitting, pipe are carried out special structural design, need not be applicable to the welding of the steel-plastic composite pipe and the pipe fitting of all size at the inboard lining of putting of internal ring wall.
2, be easy to realize dual face seals, and cause leaking if the welding quality is not good or when seeping water, can be once more to plugging position heating enforcing remedies.
3, the internal ring wall that forms birdsmouth can be made thinner, thereby make the internal diameter of the internal diameter of steel-plastic composite pipe and pipe fitting welding end more approaching, reduce undergauge.
Description of drawings
Fig. 1 is the schematic representation of steel-plastic composite pipe.
Fig. 2 is a kind of structural representation of plastic pipe.
Fig. 3 is that steel-plastic composite pipe shown in Figure 1 inserts in the birdsmouth of pipe fitting shown in Figure 2 and with electromagnetic induction heater and from the outside of plugging position the steel pipe layer of plugging position implemented the schematic representation that induction heating is realized welding.
Fig. 4 will implement the schematic representation that induction heating is realized welding from the outside of plugging position to the steel pipe layer of plugging position in the birdsmouth of insertion pipe fitting shown in Figure 2 behind the steel-plastic composite pipe expanding end full circle shown in Figure 1 and with electromagnetic induction heater.
Number in the figure explanation: 1-steel-plastic composite pipe, 2-steel pipe layer, 3-pipe fitting, 4-internal ring wall, 5-external annulus, 6-birdsmouth, 7-welding end, 8-electromagnetic induction heater, the thickness of t1-internal ring wall, the thickness of t2-external annulus.
Embodiment
Below in conjunction with Figure of description the utility model is described further.
Electromagnetism melts double-sealing pipe fitting linkage structure, comprise pipe fitting 3 and steel-plastic composite pipe 1, pipe fitting 3 (referring to Fig. 2) has that at least one is made of plastics comprise internal ring wall 4, external annulus 5 and be formed on internal ring wall 4 and external annulus 5 between the welding end 7 of birdsmouth 6 (the diagram pipe fitting is a threeway, therefore it has three connecting ends, but this pipe fitting can be specific constructive form such as straight-through, elbow, four-way when implementing); Steel-plastic composite pipe 1 (referring to Fig. 1) normally is made of inner plastic layer, middle steel pipe layer 2, outer plastic layer, also can be constituted or is made of outer plastic layer and interior steel pipe layer by inner plastic layer and outer steel pipe layer; As shown in Figure 3, steel-plastic composite pipe 1 is plugged in the birdsmouth 6 and with internal ring wall 4, external annulus 5 and fuses, and the thickness t 1 of internal ring wall 4 is less than the thickness t 2 of external annulus 5.Further, internal ring wall 4 and external annulus 5 isometric (being to align in its outer end); The end of internal ring wall 4 is the inwall of thin wall shape fusion at steel-plastic composite pipe.
During welding: earlier steel-plastic composite pipe 1 is inserted in pipe fitting 3 birdsmouths 6 as shown in Figure 3, from the outside of plugging position the steel pipe layer 2 of plugging position is implemented the plastics of induction heating fusion steel pipe layer both sides with electromagnetic induction heater 8 afterwards, promptly realize the welding of steel-plastic composite pipe 1 and pipe fitting 3 after the cooling (normally natural cooling).This method, electromagnetic induction heater 8 cooperates with the steel pipe layer of steel-plastic composite pipe 1, and the steel pipe layer of steel-plastic composite pipe is carried out internal ring wall 4 external annulus 5 weldings that electromagnetic induction heating makes the plastics fusion steel-plastic composite pipe 1 and pipe fitting 3.Because this method is inserted steel-plastic composite pipe 1 in the birdsmouth 6 of pipe fitting earlier, again the steel pipe layer of plugging position is implemented induction heating and realize welding, easy to implement, especially be beneficial to some occasions that are unfavorable for the application of force in high-altitude, narrow space etc. and implement; Simultaneously, do not need pipe fitting, pipe are done special structural change,, can also omit the structure that is used for exhaust, holds molten knurl, be easy to make with respect to the method for pegging graft behind the hot melt; Be applicable to the welding of the steel-plastic composite pipe and the pipe fitting of all size; Be easy to realize dual face seals, promptly the inwall of composite pipe 1, outer wall are realized sealing with the internal ring wall 4 of pipe fitting 3, external annulus 5 weldings respectively; Cause seepage if the welding quality is not good, can will heat enforcing remedies to plugging position once more after the media discharge of inside.Especially, the internal ring wall that forms birdsmouth can be made thinner, thereby make the internal diameter of the internal diameter of steel-plastic composite pipe and pipe fitting welding end more approaching, reduce undergauge.In order to reduce undergauge, can be as shown in Figure 4 the end of steel-plastic composite pipe 1 is plugged on behind the enlarging full circle in the birdsmouth 6 and with internal ring wall 4, external annulus 5 fusions.
Claims (4)
1. electromagnetism melts double-sealing pipe fitting linkage structure, comprise pipe fitting (3) and steel-plastic composite pipe (1), described pipe fitting (3) has that at least one is made of plastics comprise internal ring wall (4), external annulus (5) and be formed on described internal ring wall (4) and external annulus (5) between the welding end (7) of birdsmouth (6), described steel-plastic composite pipe (1) is plugged in the described birdsmouth (6) and with described internal ring wall (4), external annulus (5) and fuses, and it is characterized in that the thickness (t2) of the thickness (t1) of described internal ring wall (4) less than described external annulus (5).
2. electromagnetism according to claim 1 melts double-sealing pipe fitting linkage structure, it is characterized in that described internal ring wall (4) and described external annulus (5) are isometric.
3. electromagnetism according to claim 1 and 2 melts double-sealing pipe fitting linkage structure, it is characterized in that the end of described internal ring wall (4) is the inwall of thin wall shape fusion in described steel-plastic composite pipe (1).
4. electromagnetism according to claim 1 melts double-sealing pipe fitting linkage structure, the end that it is characterized in that described steel-plastic composite pipe (1) behind the enlarging full circle, be plugged in the described birdsmouth (6) and with described internal ring wall (4), external annulus (5) fusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202475248U CN201764147U (en) | 2010-07-05 | 2010-07-05 | Electromagnetic welding double-seal pipe fitting connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202475248U CN201764147U (en) | 2010-07-05 | 2010-07-05 | Electromagnetic welding double-seal pipe fitting connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764147U true CN201764147U (en) | 2011-03-16 |
Family
ID=43716752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202475248U Expired - Fee Related CN201764147U (en) | 2010-07-05 | 2010-07-05 | Electromagnetic welding double-seal pipe fitting connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764147U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764208A (en) * | 2017-03-13 | 2017-05-31 | 武汉金牛经济发展有限公司 | The connection method of the double hot melt pipe fittings of electromagnetism and steel-plastics composite pipe |
| CN113189652A (en) * | 2021-05-06 | 2021-07-30 | 天津军星管业集团有限公司 | Welding monitoring equipment and welding monitoring method for steel-plastic composite pressure pipeline |
| CN114215988A (en) * | 2021-11-09 | 2022-03-22 | 浙江新大塑料管件有限公司 | Elbow type steel-plastic conversion pipe fitting joint assembly |
-
2010
- 2010-07-05 CN CN2010202475248U patent/CN201764147U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106764208A (en) * | 2017-03-13 | 2017-05-31 | 武汉金牛经济发展有限公司 | The connection method of the double hot melt pipe fittings of electromagnetism and steel-plastics composite pipe |
| CN113189652A (en) * | 2021-05-06 | 2021-07-30 | 天津军星管业集团有限公司 | Welding monitoring equipment and welding monitoring method for steel-plastic composite pressure pipeline |
| CN113189652B (en) * | 2021-05-06 | 2024-04-19 | 天津军星管业集团有限公司 | Welding monitoring equipment and welding monitoring method for steel-plastic composite pressure pipeline |
| CN114215988A (en) * | 2021-11-09 | 2022-03-22 | 浙江新大塑料管件有限公司 | Elbow type steel-plastic conversion pipe fitting joint assembly |
| CN114215988B (en) * | 2021-11-09 | 2023-11-28 | 浙江新大塑料管件有限公司 | Bent pipe type steel-plastic conversion pipe fitting joint assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201954169U (en) | Plastic pipe electromagnetic melting connection structure | |
| CN101852323A (en) | Electromagnetic inductive welding method of steel-plastic compound pipe | |
| CN202056455U (en) | Aluminum-plastic composite pipe electromagnetic melting connection structure | |
| CN201696762U (en) | Connecting piece for connecting PSP steel-plastic composite pipe and lining plastic-chemical pipe piece | |
| CN201764147U (en) | Electromagnetic welding double-seal pipe fitting connecting structure | |
| CN113864559B (en) | Electric smelting pipe fitting with barrier function and manufacturing method thereof | |
| CN107131376A (en) | The connection method of the double hot melt assembling pipe fittings of electromagnetism and steel-plastics composite pipe | |
| CN202992439U (en) | Electromagnetism melting spigot and faucet pipe fitting and steel-plastic complex pipe electromagnetism melting spigot and faucet structure | |
| CN101319745A (en) | Spigot-and-socket hot melting pipe connector | |
| CN102829276B (en) | Electromagnetic induction heating type steel-plastic composite pipeline full fusion welding structure | |
| CN201456395U (en) | Double-side socket joint hot melt die sleeve | |
| CN201487419U (en) | Non-necking dual hot melt connecting structure | |
| CN201992252U (en) | Steel plastic composite pipeline electromagnetic welding connection structure | |
| CN202032227U (en) | Electromagnetic fusion connecting structure for steel-lined plastic composite pipe | |
| CN101850613A (en) | High-frequency induction welding method of mental-plastic composite tube | |
| CN208871229U (en) | A kind of fitting structure fuse of modified hot melt interconnection technique | |
| CN206582458U (en) | The double hot melt pipe fittings of electromagnetism | |
| CN202992500U (en) | Composite tube connecting part | |
| CN202040472U (en) | Electromagnetic fusion connection structure of plastic pipe | |
| CN201462296U (en) | Double hot-melt exhaust type pipe fitting | |
| CN201456396U (en) | Welding machine for realizing multi-pipeline simultaneous socket welding at one step | |
| CN201818927U (en) | Chinese-standard thin-wall stainless steel pipe socket argon tungsten arc welding connecting structure | |
| CN201180883Y (en) | Hot melting connection joint for polypropylene pipe | |
| CN201680080U (en) | No-shrink-diameter double-hot-melt connecting structure | |
| CN202040452U (en) | Electromagnetic fusion marking ring structure of steel plastic composite pressure pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20110705 |