CN204647682U - The flange type steel-plastic switching mechanism of PE gas pipeline - Google Patents
The flange type steel-plastic switching mechanism of PE gas pipeline Download PDFInfo
- Publication number
- CN204647682U CN204647682U CN201520267920.XU CN201520267920U CN204647682U CN 204647682 U CN204647682 U CN 204647682U CN 201520267920 U CN201520267920 U CN 201520267920U CN 204647682 U CN204647682 U CN 204647682U
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- China
- Prior art keywords
- pipe
- sleeve pipe
- prefabricated sleeve
- prefabricated
- annular groove
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Abstract
The flange type steel-plastic switching mechanism of PE gas pipeline, it is characterized in that comprising PE moulds pipe, mould inner tube wall at PE and locking ring is set, PE moulds pipe outer wall and arranges the prefabricated sleeve pipe that steel make, and the inwall of prefabricated sleeve pipe is shaped with 4-7 road annular grooves, wherein arranges seal ring in 2-4 road annular grooves, all the other are overflow preformed groove, the lower end surface of moulding pipe, locking ring and prefabricated sleeve pipe at PE arranges flange plate, flange plate is shaped with positioning hole and central through bore, and flange plate and prefabricated sleeve pipe are through being welded to connect.Assembling simple and fast, shortens construction period, because prefabricated internal surface of sleeve pipe is shaped with annular groove, and in annular groove, having the annular groove of seal ring or sky, PE moulds pipe under locking ring presses effect, can play to seal contacting on the one hand with seal ring, ensure sealability, prevent natural gas leaking; PE moulds pipe under the effect of pressing of locking ring on the other hand, and part material can overflow in empty annular groove, and works in coordination with annular groove, makes PE mould pipe and coordinates reliably with prefabricated sleeve pipe, prevent pull-off.
Description
Technical field
The utility model relates to PE gas pipeline, particularly relates to the switching mechanism of PE gas pipeline flange type steel-plastic, belongs to the gas pipeline field in buried polyethylene pipe distributing system.
Background technique
Existing buried gas pipeline distributing system is in construction, when PE pipeline is connected with steel pipe, need to adopt the additional steel flanges sheet of PE flange, PE pipeline will first connect PE flange, again by PE Flange joint steel flanges sheet, then required steel pipe could be connected, complex structure, construction trouble, thus reduce efficiency of construction.
Summary of the invention
The purpose of this utility model is the shortcoming existed to overcome prior art, and provide a kind of structure simple, easily manufactured, it is easy to connect with steel pipe that PE moulds pipe, uses flexibly, shortens the PE gas pipeline flange type steel-plastic switching mechanism of construction period.
The technological scheme of the utility model PE gas pipeline flange type steel-plastic switching mechanism is: it is characterized in that comprising PE moulds pipe, mould inner tube wall at PE and locking ring is set, PE moulds pipe outer wall and arranges the prefabricated sleeve pipe that steel make, the inwall of prefabricated sleeve pipe is shaped with 4-7 road annular grooves, wherein in 2-4 road annular grooves, seal ring is set, all the other are overflow preformed groove, the lower end surface of moulding pipe, locking ring and prefabricated sleeve pipe at PE arranges flange plate, flange plate is shaped with positioning hole and central through bore, flange plate and prefabricated sleeve pipe are through being welded to connect.
The utility model discloses the switching mechanism of a kind of PE gas pipeline flange type steel-plastic, during assembling, first by flange plate and prefabricated sleeve pipe by being welded together, and entirety carries out preservative treatment, then seal ring is put into the annular groove of prefabricated sleeve pipe, then the PE of molding and forming is moulded pipe and be pressed in prefabricated sleeve pipe, finally locking ring being pressed into PE moulds in pipe, moulded the inwall of pipe by locking ring radial effect at PE, make PE mould pipe and be pressed on prefabricated internal surface of sleeve pipe, complete assembling.The flange type steel-plastic switching mechanism of this programme PE gas pipeline, after being welded to connect by flange plate and prefabricated sleeve pipe, can directly and PE mould pipe socket connection, assembling simple and fast, shorten construction period, mould inner tube wall at PE again after assembling and a locking ring is set, utilize locking ring PE to be moulded pipe and be pressed on prefabricated internal surface of sleeve pipe, because prefabricated internal surface of sleeve pipe is shaped with annular groove, and in annular groove, having the annular groove of seal ring or sky, PE moulds pipe under locking ring presses effect, can play to seal contacting on the one hand with seal ring, ensure sealability, prevent natural gas leaking; PE moulds pipe under the effect of pressing of locking ring on the other hand, and part material can overflow in empty annular groove, and works in coordination with annular groove, makes PE mould pipe and coordinates reliably with prefabricated sleeve pipe, prevent pull-off.
The flange type steel-plastic switching mechanism of the utility model PE gas pipeline, the inwall of described prefabricated sleeve pipe is shaped with 5 road annular grooves, and wherein arrange seal ring in 2 road annular grooves, all the other 3 roads are overflow preformed groove.
Accompanying drawing explanation
Fig. 1 is the structural representation of PE gas pipeline flange type steel-plastic switching mechanism;
Fig. 2 is the A place close-up schematic view of Fig. 1.
Embodiment
The utility model relates to the switching mechanism of a kind of PE gas pipeline flange type steel-plastic, as shown in Fig. 1-Fig. 2, it is characterized in that: comprise PE and mould pipe 1, mould inner tube wall at PE and locking ring 2 is set, PE moulds pipe outer wall and arranges the prefabricated sleeve pipe 3 that steel make, the inwall of prefabricated sleeve pipe is shaped with 4-7 road annular grooves 31, wherein in 2-4 road annular grooves, seal ring 4 is set, all the other are overflow preformed groove, the lower end surface of moulding pipe 1, locking ring 2 and prefabricated sleeve pipe 3 at PE arranges flange plate 5, flange plate is shaped with positioning hole 51 and central through bore 52, flange plate and prefabricated sleeve pipe 3 are through being welded to connect.During assembling, first by flange plate 5 and prefabricated sleeve pipe 3 by being welded together, and entirety carries out preservative treatment, then seal ring 4 is put into the annular groove 31 of prefabricated sleeve pipe 3, the PE of molding and forming being moulded pipe 1 is pressed in prefabricated sleeve pipe 3 again, finally locking ring 2 is pressed into PE and moulds in pipe 1, moulded the inwall of pipe 1 by locking ring 2 radial effect at PE, make PE mould pipe and be pressed on prefabricated sleeve pipe 3 inwall, complete assembling.The flange type steel-plastic switching mechanism of this programme PE gas pipeline, after being welded to connect by flange plate 5 and prefabricated sleeve pipe 3, can directly and PE mould pipe 1 socket connection, assembling simple and fast, shorten construction period, mould inner tube wall at PE again after assembling and a locking ring 2 is set, utilize locking ring PE to be moulded pipe and be pressed on prefabricated sleeve pipe 3 inwall, because prefabricated internal surface of sleeve pipe is shaped with annular groove 31, and in annular groove, have the annular groove of seal ring 4 or sky, PE moulds pipe 1 under locking ring 2 presses effect, can play to seal with seal ring 4 on the one hand and contact, ensure sealability, prevent natural gas leaking, PE moulds pipe 1 under the effect of pressing of locking ring 2 on the other hand, and part material can overflow in empty annular groove, and works in coordination with annular groove 31, makes PE mould pipe and coordinates reliably with prefabricated sleeve pipe 3, prevent pull-off.The inwall of described prefabricated sleeve pipe 3 is shaped with 5 road annular grooves 31, and wherein arrange seal ring 4 in 2 road annular grooves, all the other 3 roads are overflow preformed groove.
Claims (2)
- The flange type steel-plastic switching mechanism of 1.PE gas pipeline, it is characterized in that: comprise PE and mould pipe (1), mould inner tube wall at PE and locking ring (2) is set, PE moulds pipe outer wall and arranges the prefabricated sleeve pipe (3) that steel make, the inwall of prefabricated sleeve pipe is shaped with 4-7 road annular grooves (31), wherein in 2-4 road annular grooves, seal ring (4) is set, all the other are overflow preformed groove, pipe (1) is moulded at PE, the lower end surface of locking ring (2) and prefabricated sleeve pipe (3) arranges flange plate (5), flange plate is shaped with positioning hole (51) and central through bore (52), flange plate and prefabricated sleeve pipe (3) are through being welded to connect.
- 2. PE gas pipeline flange type steel-plastic switching mechanism as claimed in claim 1, is characterized in that: the inwall of described prefabricated sleeve pipe (3) is shaped with 5 road annular grooves (31), and wherein arrange seal ring (4) in 2 road annular grooves, all the other 3 roads are overflow preformed groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267920.XU CN204647682U (en) | 2015-04-29 | 2015-04-29 | The flange type steel-plastic switching mechanism of PE gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520267920.XU CN204647682U (en) | 2015-04-29 | 2015-04-29 | The flange type steel-plastic switching mechanism of PE gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204647682U true CN204647682U (en) | 2015-09-16 |
Family
ID=54100433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520267920.XU Expired - Fee Related CN204647682U (en) | 2015-04-29 | 2015-04-29 | The flange type steel-plastic switching mechanism of PE gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204647682U (en) |
-
2015
- 2015-04-29 CN CN201520267920.XU patent/CN204647682U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |