CN207112197U - Polyethylene steel-plastic changes pipe fitting - Google Patents
Polyethylene steel-plastic changes pipe fitting Download PDFInfo
- Publication number
- CN207112197U CN207112197U CN201720742960.4U CN201720742960U CN207112197U CN 207112197 U CN207112197 U CN 207112197U CN 201720742960 U CN201720742960 U CN 201720742960U CN 207112197 U CN207112197 U CN 207112197U
- Authority
- CN
- China
- Prior art keywords
- pipe
- steel
- polyethylene
- ring
- section
- 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
- 239000004698 Polyethylene (PE) Substances 0.000 title claims abstract description 51
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 50
- -1 Polyethylene Polymers 0.000 title claims abstract description 49
- 229920003023 plastic Polymers 0.000 title claims abstract description 13
- 239000004033 plastic Substances 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 239000000789 fastener Substances 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims description 5
- 150000001336 alkenes Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
Abstract
The utility model discloses a kind of polyethylene steel-plastic to change pipe fitting, including polyethylene pipe, steel pipe and locking steel bushing, described steel pipe one end is enclosed in the polyethylene pipe, the steel bushing is enclosed on the outer ring at the polyethylene pipe and the fastener for connection, described polyethylene pipe one end is cooperation section, in the steel pipe insertion cooperation section, the steel bushing is enclosed on the cooperation section outer ring, the end of race diameter towards the polyethylene pipe of the cooperation section becomes larger, the steel bushing is towards being provided with a circle baffle ring on the end face of the steel pipe side, chamfering is provided with the outside of the baffle ring, also include a back-up ring, two end faces of the back-up ring are in contact with the end face of the polyethylene pipe and the medial surface of the baffle ring respectively.It is the conical surface due to coordinating the outer ring of section, so steel bushing can not be towards the side abjection for coordinating section diameter to become big, still further aspect, due to the effect of back-up ring, steel bushing also can not be from the one section of Party B abjection for coordinating section diameter to diminish, such structure, it can ensure that polyethylene pipe and fastener for connection are reliable, will not release.
Description
Technical field
The present invention relates to a kind of polyethylene for field of fluid such as natural gas（PE）Pipeline connecting fittings, it is main to use
In the connection of plastic conduit and metallic conduit.
Background technology
Often there is the plastic conduits such as polyethylene and metallic conduit in fluid-transporting tubing field mutually to change, be connected with each other
Situation, wherein the connected mode mainly used is connected for flange or steel modeling conversion connection two ways, the two ways is
Mechanical connection.Common polyethylene steel-plastic conversion pipe fitting is because structure design is unreasonable, or dimensional accuracy is inadequate, causes to seal
Performance is undesirable, the phenomenon leaked easily occurs.
The content of the invention
For the deficiencies in the prior art, the invention provides a kind of polyethylene steel-plastic to change pipe fitting, fixed,
It is not easy to release.
The present invention is achieved through the following technical solutions：Polyethylene steel-plastic change pipe fitting, including polyethylene pipe, steel pipe and
Steel bushing is locked, described steel pipe one end is enclosed in the polyethylene pipe, and the steel bushing is enclosed on the polyethylene pipe and the steel pipe connecting
The outer ring at place is connect, described polyethylene pipe one end is coordinates section, and the steel pipe insertion is described to be coordinated in section, and the steel bushing is enclosed on described
Coordinate section outer ring, the end of race diameter towards the polyethylene pipe for coordinating section becomes larger, and the steel bushing is towards institute
State and a circle baffle ring is provided with the end face of steel pipe side, chamfering, in addition to a back-up ring are provided with the outside of the baffle ring, it is described
Two end faces of back-up ring are in contact with the end face of the polyethylene pipe and the medial surface of the baffle ring respectively.Due to coordinating section
Outer ring is the conical surface, so steel bushing can not be towards the side abjection for coordinating section diameter to become big, still further aspect, due to the work of back-up ring
With steel bushing also such structure, can not can ensure polyethylene pipe and steel pipe from the one section of one side abjection for coordinating section diameter to diminish
Connection is reliable, will not release.
In above-mentioned technical proposal, it is preferred that the outer ring for being engaged part on the steel pipe with the polyethylene pipe is provided with
Groove, sealing ring is provided with the groove.Sealing ring is used to ensuring that liquid in pipeline will not be from steel pipe and polyethylene pipe
Junction leaks.
In above-mentioned technical proposal, it is preferred that the outer ring for being engaged part on the steel pipe with the polyethylene pipe is provided with
Back-off.The effect of back-off is to prevent steel pipe from deviating from polyethylene pipe.
In above-mentioned technical proposal, specifically, the back-up ring is a multi-diameter shaft, be relatively large in diameter one section of the back-up ring stretches into
In the steel bushing.
The present invention has the advantages that：It is the conical surface due to coordinating the outer ring of section, so steel bushing can not be towards cooperation section
Diameter becomes big side abjection, still further aspect, and due to the effect of back-up ring, steel bushing also can not be from coordinate that section diameter diminish one section
Party B deviates from, and such structure, can ensure that polyethylene pipe and fastener for connection are reliable, will not release.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is Fig. 1 close-up schematic view.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Referring to Fig. 1 and Fig. 2, polyethylene steel-plastic conversion pipe fitting, including polyethylene pipe 1, steel pipe 2 and locking steel bushing 3, the steel
The one end of pipe 2 is enclosed in the polyethylene pipe 1, and the steel bushing 3 is enclosed on the outer ring of polyethylene pipe 1 and the steel pipe 2 junction.
Described one end of polyethylene pipe 1 is coordinates section 11, and the steel pipe 2 is inserted in the cooperation section 11, and the steel bushing 2 is enclosed on
Cooperation section 11 outer ring, the end of race diameter towards the polyethylene pipe 1 of the cooperation section 11 become larger, the steel
For set 3 towards a circle baffle ring 31 is provided with the end face of the side of steel pipe 2, the outside of the baffle ring 31 is provided with chamfering 32, also
Including a back-up ring 4, the back-up ring 4 is a multi-diameter shaft, and be relatively large in diameter one section of the back-up ring 4 is stretched into the steel bushing 2.Directly
One section larger of two end faces of footpath are in contact with the end face of the polyethylene pipe 1 and the medial surface of the baffle ring 31 respectively.
The outer ring for being engaged part on the steel pipe 2 with the polyethylene pipe 1 sets fluted 21, is set in the groove 21
It is equipped with sealing ring 5.Sealing ring is used to ensure that the liquid in pipeline will not leak from the junction of steel pipe and polyethylene pipe.
The outer ring for being engaged part with the polyethylene pipe 1 on the steel pipe 2 is provided with back-off 22.The effect of back-off is anti-
Only steel pipe abjection polyethylene pipe.
It is the conical surface due to coordinating the outer ring of section, so steel bushing can not be deviate from towards coordinating section diameter to become a big side, in addition
On the one hand, because the effect of back-up ring, steel bushing also can not be from the one section of Party B abjection for coordinating section diameter to diminish, such structure, energy
Enough ensure that polyethylene pipe and fastener for connection are reliable, will not release.
Claims (4)
1. polyethylene steel-plastic changes pipe fitting, including polyethylene pipe, steel pipe and locking steel bushing, described steel pipe one end is enclosed on the poly- second
In alkene pipe, the steel bushing is enclosed on the outer ring at the polyethylene pipe and the fastener for connection, it is characterised in that：The polyethylene pipe
One end is to coordinate section, and in the steel pipe insertion cooperation section, the steel bushing is enclosed on the cooperation section outer ring, the cooperation section
The end of race diameter towards the polyethylene pipe becomes larger, and the steel bushing is towards being provided with the end face of the steel pipe side
One circle baffle ring, is provided with chamfering, in addition to a back-up ring on the outside of the baffle ring, two end faces of the back-up ring respectively with it is described
The medial surface of the end face of polyethylene pipe and the baffle ring is in contact.
2. polyethylene steel-plastic according to claim 1 changes pipe fitting, it is characterised in that：On the steel pipe with the polyethylene
The outer ring setting that pipe is engaged part is fluted, and sealing ring is provided with the groove.
3. polyethylene steel-plastic according to claim 1 changes pipe fitting, it is characterised in that：On the steel pipe with the polyethylene
The outer ring that pipe is engaged part is provided with back-off.
4. polyethylene steel-plastic according to claim 1 changes pipe fitting, it is characterised in that：The back-up ring is a multi-diameter shaft,
Be relatively large in diameter one section of the back-up ring is stretched into the steel bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720742960.4U CN207112197U (en) | 2017-06-25 | 2017-06-25 | Polyethylene steel-plastic changes pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720742960.4U CN207112197U (en) | 2017-06-25 | 2017-06-25 | Polyethylene steel-plastic changes pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207112197U true CN207112197U (en) | 2018-03-16 |
Family
ID=61578966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720742960.4U Expired - Fee Related CN207112197U (en) | 2017-06-25 | 2017-06-25 | Polyethylene steel-plastic changes pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207112197U (en) |
-
2017
- 2017-06-25 CN CN201720742960.4U patent/CN207112197U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20180625 |