CN207122674U - A kind of seamless welding structure of steel-plastic composite pressure pipe - Google Patents
A kind of seamless welding structure of steel-plastic composite pressure pipe Download PDFInfo
- Publication number
- CN207122674U CN207122674U CN201720817240.XU CN201720817240U CN207122674U CN 207122674 U CN207122674 U CN 207122674U CN 201720817240 U CN201720817240 U CN 201720817240U CN 207122674 U CN207122674 U CN 207122674U
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- CN
- China
- Prior art keywords
- steel
- plastic
- pressure pipe
- composite pressure
- internal ring
- Prior art date
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- Expired - Fee Related
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 238000003466 welding Methods 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 210000003205 muscle Anatomy 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000155 melt Substances 0.000 abstract description 3
- 238000005452 bending Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of seamless welding structure of steel-plastic composite pressure pipe, it is including the steel-plastic composite pressure pipe material with interior outer plastic layer and middle steel layer and with an at least internal ring portion, the plastic pipe of one outer portion and an annular socket joint chamber, the internal diameter of internal ring portion from inside to port at become larger, steel-plastic composite pressure pipe material inserts annular socket joint intracavitary, internal ring portion is equipped with ring bush on its inwall, the outer end of this ring bush is bendingly fixed on the outer end of internal ring portion outwardly, resilient sleeve is installed between internal ring portion and ring bush, and its outer end of resilient sleeve is alignd with the outer end of internal ring portion.When steel-plastic composite pressure pipe material melts with plastic pipe electromagnetism, the internal ring portion of soft state bears the squeezing action from resilient sleeve to promote the seamless frit seal of inner plastic layer of the internal ring portion of plastic pipe and steel-plastic composite pressure pipe material, the sunken and caused welding gap of discount vibram outlet is lost using solving steel-plastic composite pressure pipe material objective reality after such scheme, improves welding quality.
Description
【Technical field】
A kind of seamless welding structure of steel-plastic composite pressure pipe is the utility model is related to, belongs to pipeline fusion techniques field.
【Background technology】
In the construction of pipeline engineering, steel-plastic composite pressure pipe material is difficult to really realize that forming tightening seal with plastic pipe melts
Connect, the inserted terminal of steel-plastic composite pressure pipe material inevitably has welding gap with the internal ring portion of plastic pipe, so as to occur
Seepage, discount vibram outlet is lost due to steel-plastic composite pressure pipe material objective reality and falls into (for example being caused by manufacture, transportation etc.), welding
Gap will be uncontrollable, so as to influence welding quality.
How steel-plastic composite pressure pipe material and plastic pipe between reliable seamless tightening seal welding is promoted, and this is pipeline industry
One technical barrier on boundary, applicant pass through unremitting effort with great concentration, and the application is caused in this context.
【Utility model content】
For above-mentioned the shortcomings of the prior art, the utility model provides a kind of seamless welding knot of steel-plastic composite pressure pipe
Structure, it can ensure that seamless welding between the inner plastic layer of the internal ring portion of plastic pipe and steel-plastic composite pressure pipe material, improves
Welding quality.
Therefore, the utility model provides following technical scheme：
A kind of seamless welding structure of steel-plastic composite pressure pipe, including plastic pipe and steel-plastic composite pressure pipe material, steel modeling are multiple
Resultant pressure tubing has inner plastic layer, outer plastic layer and middle steel layer, and plastic pipe has at least one internal ring portion, an outer shroud
Portion and an annular socket joint chamber, the internal diameter of internal ring portion from inside to port at become larger, steel-plastic composite pressure pipe material insertion institute
Annular socket joint intracavitary is stated, its improvement is：Also include the ring bush being placed on internal ring portion its inwall, this ring bush it is outer
End is bendingly fixed on the outer end of internal ring portion outwardly, and resilient sleeve, and resilient sleeve are provided between internal ring portion and ring bush
Alignd with the outer end of internal ring portion its outer end.
As to such scheme it is further supplement and it is perfect, the utility model also includes following technical characteristic：
The inner of above-mentioned ring bush is together with internal ring portion system.
Its inwall of above-mentioned internal ring portion forms circular conical surface, and the outer surface of resilient sleeve is adapted with the inwall of internal ring portion, resilient sleeve
Inner surface be adapted with the outer surface of ring bush.
Above-mentioned outer portion is provided with the observation portion for being available for steel-plastic composite pressure pipe material welding, the observation near its root
Portion includes the muscle of blind hole, the tongue positioned at blind hole center and connection blind hole inwall and the tongue, the observation portion adjacent rings socket joint chamber
Bottom.
When steel-plastic composite pressure pipe material is planted to annular socket joint bottom of chamber portion, its tongue of observation portion exposes outer shroud in above-mentioned observation portion
The surface in portion；And after steel-plastic composite pressure pipe material and plastic pipe welding, this is fused to its tongue of observation portion on outer plastic layer
It is recessed within outer portion.
Observation portion can be used for examining whether steel-plastic composite pressure pipe material is planted in place, if its tongue of observation portion exposes outer portion
Surface, show that this steel-plastic composite pressure pipe material has planted the bottom of annular socket joint chamber；If its tongue of observation portion does not expose outer
The surface of ring portion, show that this steel-plastic composite pressure pipe material does not plant the bottom of annular socket joint chamber also.
Whether observation portion can also advantageously examine plastic pipe welding, if its tongue of observation portion is recessed in external annulus
Portion, show this plastic pipe and the welding of steel-plastic composite pressure pipe material；If its tongue of observation portion only exposes the surface of outer portion,
Show that the plastic pipe without welding, has only planted steel-plastic composite pressure pipe material.
The utility model has the following advantages that and beneficial effect：
During being arranged resilient sleeve on toward ring bush, along with resilient sleeve be restrained to the internal ring portion of plastic pipe with
Between ring bush.
When having planted steel-plastic composite pressure pipe material together and plastic pipe is melted by electromagnetic induction heating, resilient sleeve
Lasting extruding makes the internal ring portion deformation by thermal softening, and resilient sleeve promotes internal ring portion fully to fill up because of steel-plastic composite pressure pipe material visitor
See to exist and lose the sunken and caused welding gap of discount vibram outlet, the welded side seam between inner plastic layer and internal ring portion is thoroughly eliminated after cooling
Gap, so as to improve welding quality, avoid hidden leakage defect.
【Brief description of the drawings】
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation for the ring bush and resilient sleeve for removing Fig. 1 right-hand sides；
Fig. 3 is ring bush structural representation of the present utility model；
Fig. 4 is Fig. 1 A to partial view (observation portion is amplified).
【Embodiment】
It refer to shown in Fig. 1,2,3,4, be preferred embodiment of the present utility model.
A kind of seamless welding structure of steel-plastic composite pressure pipe, including plastic pipe 2 and steel-plastic composite pressure pipe material 1, steel modeling
Composite pressure tubing 1 has inner plastic layer 11, outer plastic layer 12 and middle steel layer 10, and plastic pipe 2 has at least one inner ring
21, one, portion outer portion 22 and an annular socket joint chamber 20, the internal diameter 21d of internal ring portion from inside to port at become larger, steel
Plastic composite pressure pipe material 1 is inserted in the annular socket joint chamber 20, and its improvement is：Also include being placed on internal ring portion 21 its inwall
Ring bush 3, the outer end 31 of this ring bush 3 is bendingly fixed on the outer end of internal ring portion 21 outwardly, internal ring portion 21 with
Resilient sleeve 4 is installed between ring bush 3, to cause the resilient sleeve 4 restrained wherein, and its outer end of resilient sleeve 4 and internal ring portion
21 outer end is concordant.
When steel-plastic composite pressure pipe material 1 melts with the electromagnetism of plastic pipe 2, the internal ring portion 21 of soft state bears to carry out own elasticity
The squeezing action of set 4 is to promote the 11 seamless welding of inner plastic layer of the internal ring portion 21 of plastic pipe 2 and steel-plastic composite pressure pipe material 1
Sealing.
The outer end 31 of ring bush 3 is contacted at after bending on the end face of internal ring portion 21.
In the present embodiment, resilient sleeve 4 uses elastomeric material；Its material of ring bush 3 is made of stainless steel；Modeling
Expects pipe part 2 is straight-through pipe fitting, and its both ends is welding end, and symmetrical configuration, including is divided into the outer of straight-through pipe fitting arranged on left and right sides
Ring portion, internal ring portion and annular socket joint chamber.Certainly according to being actually needed, it is welding end that wherein one end of plastic pipe 2, which is not,.And mould
The form of expects pipe part 2 can be changeable, in addition to straight-through pipe fitting or elbow, can also be threeway, four-way, then connection end accordingly increases therewith
Add.
The annular socket joint chamber 20 of plastic pipe 2 implements electromagnetic inductive welding after being planted for steel-plastic composite pressure pipe material 1.
Refer to Fig. 2, the external diameter 21D of internal ring portion from inside to port at taper into, and the internal diameter 22d of outer portion is from interior
Portion is to becoming larger at port.
As preferential embodiment, the inner 32 of ring bush 3 is so achieved that ring together with being made with internal ring portion 21
Shape bushing 3 is integrally configured so that both are connected as a single entity with internal ring portion 21, when it is implemented, incorporated by reference to Fig. 3, in original annular
On the basis of the bending form of outer end 31 of bushing 3, by the inner 32 of ring bush 3 also outside bending, the inner 32 after bending
It is moulded at the inner of internal ring portion 21.Further, annular shallow trench S is opened up at the inner place of internal ring portion 21, and by ring bush 3
The inner 32 be placed in this annular shallow trench S, then row injection again, the company that the inner 32 can improve ring bush 3 after injection
Connect reliability.
The structure of ring bush 3 positioned at 2 left and right both sides of plastic pipe is identical, generally applicable；Positioned at plastic pipe 2 left and right two
The structure of resilient sleeve 4 on side is identical, generally applicable.
Its inwall of internal ring portion 21 forms circular conical surface (internal ring portion inwall is in bell mouth shape), the outer surface of resilient sleeve 4 and inner ring
The inwall in portion 21 is adapted, and the inner surface of resilient sleeve 4 is adapted with the outer surface of ring bush 3.
The wall thickness of resilient sleeve 4 everywhere is unequal, and the wall thickness of its outer end of resilient sleeve 4 is maximum, and the wall thickness of resilient sleeve 4 is gradual inside
Reduce.Because the wall thickness of its outer end of resilient sleeve 4 is big, the port of plastic pipe 2 and its vicinity (seepage starting source) can be improved
Sealing.
Fig. 1,4 are referred to, outer portion 22 is provided with the observation for being available for the welding of steel-plastic composite pressure pipe material 1 near its root
Portion 5, the observation portion 5 include the muscle of blind hole 50, the tongue 51 positioned at the center of blind hole 50 and the connection inwall of blind hole 50 and the tongue 51
52, the bottom of the adjacent rings socket joint chamber 20 of observation portion 5.
The present embodiment, straight-through plastic pipe is left and right is arranged with two observation portions.
When steel-plastic composite pressure pipe material 1 is planted to annular 20 bottom of socket joint chamber, its tongue 51 of observation portion 5 exposes in observation portion 5
The surface of outer portion 22；And after steel-plastic composite pressure pipe material 1 and the welding of plastic pipe 2, this is fused on outer plastic layer 11
Its tongue 51 of observation portion 5 is recessed within outer portion 22.
During welding, the annular that steel-plastic composite pressure pipe material 1 is inserted to plastic pipe 2 is accepted in chamber 20, and is served as a contrast in annular
Resilient sleeve 4 is installed between set 3 and internal ring portion 21, and then electromagnetic induction heater (prior art, omitting diagram) is placed in outer shroud
The periphery in portion 22, sensing heating is implemented to melt inner plastic layer 11, outer plastic layer 12 to the middle steel layer 10 of plugging position, until
Internal ring portion 21, the melted by heating of outer portion 22, realize the welding of steel-plastic composite pressure pipe material 1 and plastic pipe 2, now after cooling
Eliminate the welding gap between the internal ring portion 21 of plastic pipe 2 and the inner plastic layer 11 of steel-plastic composite pressure pipe material 1.
Claims (5)
1. a kind of seamless welding structure of steel-plastic composite pressure pipe, including plastic pipe and steel-plastic composite pressure pipe material, steel plastic compount
Pressure tubing has inner plastic layer, outer plastic layer and middle steel layer, and plastic pipe has at least one internal ring portion, an outer portion
With an annular socket joint chamber, the internal diameter of internal ring portion from inside to port at become larger, described in the insertion of steel-plastic composite pressure pipe material
Annular socket joint intracavitary, it is characterised in that：Also include the ring bush being placed on internal ring portion its inwall, the outer end court of this ring bush
Bendingly it is fixed on outside on the outer end of internal ring portion, resilient sleeve is installed between internal ring portion and ring bush, and resilient sleeve is outside it
Alignd with the outer end of internal ring portion at end.
2. the seamless welding structure of steel-plastic composite pressure pipe according to claim 1, it is characterized in that the inner of ring bush with
Internal ring portion system is together.
3. the seamless welding structure of steel-plastic composite pressure pipe according to claim 1, it is characterized in that its inwall of the internal ring portion
Circular conical surface is formed, the outer surface of resilient sleeve is adapted with the inwall of internal ring portion, the inner surface of resilient sleeve and the appearance of ring bush
Face is adapted.
4. the seamless welding structure of steel-plastic composite pressure pipe according to claim 1, it is characterised in that：The outer portion is at it
Root is nearby provided with the observation portion for being available for steel-plastic composite pressure pipe material welding, and the observation portion includes blind hole, in blind hole
The tongue of centre and the muscle of connection blind hole inwall and the tongue, the bottom of the observation portion adjacent rings socket joint chamber.
5. the seamless welding structure of steel-plastic composite pressure pipe according to claim 4, it is characterised in that：The observation portion is in steel
Plastic composite pressure pipe material plants to its tongue of observation portion during annular socket joint bottom of chamber portion the surface for exposing outer portion；And in steel plastic compount pressure
After solenoid material and plastic pipe welding, its tongue of observation portion being fused on outer plastic layer is recessed within outer portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720817240.XU CN207122674U (en) | 2017-06-26 | 2017-06-26 | A kind of seamless welding structure of steel-plastic composite pressure pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720817240.XU CN207122674U (en) | 2017-06-26 | 2017-06-26 | A kind of seamless welding structure of steel-plastic composite pressure pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207122674U true CN207122674U (en) | 2018-03-20 |
Family
ID=61612457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720817240.XU Expired - Fee Related CN207122674U (en) | 2017-06-26 | 2017-06-26 | A kind of seamless welding structure of steel-plastic composite pressure pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207122674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890168A (en) * | 2018-08-16 | 2018-11-27 | 中铁十六局集团第三工程有限公司 | A kind of tunneltron canopy socket welding type attachment device and its method |
-
2017
- 2017-06-26 CN CN201720817240.XU patent/CN207122674U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108890168A (en) * | 2018-08-16 | 2018-11-27 | 中铁十六局集团第三工程有限公司 | A kind of tunneltron canopy socket welding type attachment device and its method |
| CN108890168B (en) * | 2018-08-16 | 2024-02-13 | 中铁十六局集团第三工程有限公司 | Tunnel pipe shed plug-in welding type connecting device and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190812 Address after: 312400 Ma Che Bridge Head, Huangze Town, Shengzhou City, Shaoxing City, Zhejiang Province Patentee after: Shengzhou Kangyu plastic composite pipe factory Address before: 312400 Zhejiang city of Shengzhou Province Huang Ze Zhen Shun Fu Village No. 168 Co-patentee before: Tu Benkuan Patentee before: Wang Zeyu Co-patentee before: Tu Hongtao |
|
| 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: 20180320 Termination date: 20200626 |