CN201954171U - Flexible composite connecting pipe fitting for large-aperture plastic pipelines - Google Patents
Flexible composite connecting pipe fitting for large-aperture plastic pipelines Download PDFInfo
- Publication number
- CN201954171U CN201954171U CN2011200430389U CN201120043038U CN201954171U CN 201954171 U CN201954171 U CN 201954171U CN 2011200430389 U CN2011200430389 U CN 2011200430389U CN 201120043038 U CN201120043038 U CN 201120043038U CN 201954171 U CN201954171 U CN 201954171U
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- pipe fitting
- pvc
- pipeline section
- pipe section
- connection pipe
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Abstract
A flexible composite connecting pipe fitting for large-aperture plastic pipelines is used for resolving the problem of connection of large-aperture PVC (polyvinyl chloride) pipelines. The technical scheme includes that the flexible composite connecting pipe fitting comprises a PE(polyurethane) inner-layer pipe section and a PVC outer-layer pipe section wrapped on the outer surface of the PE inner-layer pipe section, one side of the PVC outer-layer pipe section and one side of the PE inner-layer pipe section are integrally fused so as to form an expanded opening together, and the other side of the PE inner-layer pipe section extends out of the PVC outer-layer pipe section. The flexible composite connecting pipe fitting mainly has the advantages that 1, the pipe fitting is convenient in construction and simple, convenient and easy in installation and operation, 2, tensile resistance strength of the pipe fitting is high, and the outer-layer PVC pipe section not only can fixedly support a PE pipe, but also can effectively prevent the problem that sealing performance is damaged due to axial movement caused by expansion and contraction of the PE pipe, 3, the pipe fitting is reliable in sealing, and a sealing ring can simultaneously realize axial sealing and radial sealing and is convenient in installation, and 4, the pipe fitting is corrosion-resistant and has long service life. The flexible composite connecting pipe fitting can be widely applied to connection of various plastic pipes.
Description
Technical field
The utility model relates to a kind of plumbing tubing special purpose parts, particularly large-bore plastics pipeline flexible compound connection pipe fitting, belongs to the plumbing technical field.
Background technique
In recent years, the plastic tube development rapidly, application quantity increases year by year, Comparatively speaking relatively lag behind with supporting construction, the equipment of maintenance aspect, the parts of pipeline, especially heavy caliber PVC(PVC) pipeline connection and PVC and PE(polyethylene) connectivity problem of pipeline, along with plastic tube day by day shows especially in the extensive use in feedwater field.Composite glass steel pipe spare or metal pipe element are mainly adopted in connection between the heavy caliber PVC feedwater piping at present.Potential safety hazards such as composite glass steel pipe spare is through the manufacturing of hot gas welding technology, and it is insecure to exist solder joint to connect, and compound position of glass fibre reinforced plastics and joint, pvc pipe road are easy to crack; Be used for the cast iron metal pipe element that heavy caliber PVC feedwater piping connects, not only heavy, and long perishable getting rusty of time, cause leakage accident.Metal pipe element need adopt mechanical flange connection to connect, bolt quantity is many, the both sides flange screw is relatively more difficult to positive justification, and critical path is fastening synchronously to corresponding bolt, inconvenient operation is particularly because the variation of ambient temperature produces the phenomenon of expanding with heat and contract with cold to pipeline and connecting bolt, easily cause bolt looseness, cause connection part to leak, not only flexible bad, and also sealability there is not guarantee yet.In addition, heavy caliber pvc pipe road also is a problem demanding prompt solution with being connected of PE pipeline.
The model utility content
The utility model is used to overcome the defective of prior art and provides that a kind of fitting operation is convenient, the reliable large-bore plastics pipeline flexible compound connection pipe fitting of sealability.
The alleged problem of the utility model solves with following technical proposals:
A kind of large-bore plastics pipeline flexible compound connection pipe fitting, its specialization is: it comprises PE internal layer pipeline section and is coated on the outer pipeline section of PVC of PE internal layer pipeline section outer surface, outer pipeline section of described PVC and PE internal layer pipeline section for one, form enlarging in side fusion jointly; Opposite side PE internal layer pipeline section leans out the outer pipeline section of PVC.
Above-mentioned large-bore plastics pipeline flexible compound connection pipe fitting, inboard, described flexible compound connection pipe fitting enlarging position is provided with an annular groove, is provided with seal ring in the annular groove.
Above-mentioned large-bore plastics pipeline flexible compound connection pipe fitting, the circumference binding site of outer pipeline section of described PVC and PE internal layer pipeline section is provided with circumferential dentate stripe.
Above-mentioned large-bore plastics pipeline flexible compound connection pipe fitting, a side end face of described flexible compound connection pipe fitting coats PE internal layer pipeline section by the outer pipeline section of PVC, and the facial position of above-mentioned two pipeline section end joined is provided with the end face dentate stripe.
The utility model improves at large-bore plastics feedwater piping connectivity problem, the performance characteristics of utilizing easy electric smelting of PE material or hot melt to connect provides a kind of flexible compound pipe fitting that can realize easily that heavy caliber pvc pipe road connects or the pvc pipe road is connected with the PE pipeline.Its main feature is as follows: 1, easy construction, and fitting operation is simple and easy to do; 2, described flexible compound connection pipe fitting tension pressure degree height, outer pvc pipe section not only can play PE pipeline section fixed support, also can effectively prevent to cause the problem of destroying sealability that moves axially because of the PE pipeline section stretches; 3, sealing is reliable, and seal ring can solve axial seal and radial seal simultaneously, and seal ring is easy for installation; 4, corrosion-resistant long service life, the utility model are the plastic materials of extruding with molding and forming except that seal ring is rubber components, there is not the metallic material that is easy to get rusty, therefore, is embedded in underground or is immersed in for a long time in the environment that water is medium, can rust corrosion, prolonged working life.Shows that through on probation the utility model is simple in structure, dismounting is easy to connect, operation is rapid, seal reliably, being connected between the connection, pvc pipe that can be widely used in heavy caliber PVC plastic pipes for water and the PE pipe.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is Fig. 1 A portion partial enlarged view;
Fig. 3 is Fig. 1 B portion partial enlarged view;
Fig. 4 is that the utility model is used for the assembling schematic representation that the pvc pipe road is connected with the PE pipeline;
Fig. 5 is that the utility model is used for the assembling schematic representation that the pvc pipe road is connected with the pvc pipe road.
The label of each parts is expressed as follows in the accompanying drawing: 1. the outer pipeline section of PVC; 2. PE internal layer pipeline section; 3. annular groove; 4. seal ring; 5. circumferential dentate stripe; 6. end face dentate stripe; 7. pvc pipe road; 8.PE pipeline; 9. weld seam.
Embodiment
Referring to Fig. 1, the utility model agent structure comprises PE internal layer pipeline section 2 and is coated on the outer pipeline section 1 of PVC of PE inner tube section surface.Based on the material characteristic of PE and PVC, adopt electric smelting, hot melt or injection moulding that both fusions are one, and form enlarging jointly.The flexible speciality of PE pipe liner need be installed when connecting for the heavy caliber pipe network support, and PVC has high-intensity characteristic, and comprehensive above-mentioned both performance advantages of the utility model form a kind of flexible compound connection pipe fitting with special construction.A side that forms enlarging at described flexible compound connection pipe fitting is provided with an annular groove 3, is provided with seal ring 4 in the annular groove.Seal ring 4 can be to forming radial seal and axial seal between pvc pipe road and the flexible compound connection pipe fitting simultaneously, and sealability is very reliable; At the opposite side (right side shown in the figure) of flexible compound connection pipe fitting, PE internal layer pipeline section will lean out the outer pipeline section of PVC, so that carry out heat seal with the pipeline section that needs to be connected.
Referring to Fig. 1-Fig. 3, circumference binding site at outer pipeline section 1 of PVC and PE internal layer pipeline section 2 is provided with circumferential dentate stripe 5, the problem of creep contraction and out of roundness easily takes place at PE tubing good toughness and is provided with in this design, it can prevent effectively that tubing from leaking because of moving axially to cause, and helps tubing Hui Yuan.Left end face at composite connecting pipe spare, coat PE inner tube 2 by the outer pipeline section 1 of PVC, position, above-mentioned two pipe end face mating face is provided with end face dentate stripe 6, and this design can make outer pipeline section of PVC and PE internal layer pipeline section better fuse into one, but also has strengthened the firm degree of two-layer pipeline section combination.
Referring to Fig. 4, this is that the utility model is used for the assembling schematic representation that the pvc pipe road is connected with the PE pipeline, with the enlarging side of pvc pipe road 7 insertion flexible compound connection pipe fittings, internal layer PE pipeline section 2 and 8 sweat solderings of PE pipeline that flexible compound connection pipe fitting opposite side leans out.
Referring to Fig. 5, this is that the utility model is used for the butt welding schematic representation that pvc pipe road PVC pipeline connects, use two flexible compound connection pipe fittings, internal layer PE pipeline section 2 butt joints of two flexible compound connection pipe fittings are connected, two pvc pipe roads 7 are inserted two enlarging sides of flexible compound connection pipe fitting respectively.
The pipeline connecting pipe fitting parts of pipe network indispensabilities such as threeway, four-way, elbow, direct joint, reducing, flanged joint are contained in design of the present utility model.
Claims (4)
1. large-bore plastics pipeline flexible compound connection pipe fitting, it is characterized in that: it comprises PE internal layer pipeline section (2) and is coated on the outer pipeline section (1) of PVC of PE internal layer pipeline section outer surface, outer pipeline section of described PVC and PE internal layer pipeline section for one, form enlarging in side fusion jointly; Opposite side PE internal layer pipeline section leans out the outer pipeline section of PVC.
2. large-bore plastics pipeline flexible compound connection pipe fitting according to claim 1 is characterized in that: inboard, described flexible compound connection pipe fitting enlarging position is provided with an annular groove (3), is provided with seal ring (4) in the annular groove.
3. large-bore plastics pipeline flexible compound connection pipe fitting according to claim 2 is characterized in that: the circumference binding site of outer pipeline section (1) of described PVC and PE internal layer pipeline section (2) is provided with circumferential dentate stripe (5).
4. according to claim 1 or 2 or 3 described large-bore plastics pipeline flexible compound connection pipe fittings, it is characterized in that: a side end face of described flexible compound connection pipe fitting coats PE internal layer pipeline section (2) by the outer pipeline section of PVC (1), and the facial position of above-mentioned two pipeline section end joined is provided with end face dentate stripe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200430389U CN201954171U (en) | 2011-02-21 | 2011-02-21 | Flexible composite connecting pipe fitting for large-aperture plastic pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200430389U CN201954171U (en) | 2011-02-21 | 2011-02-21 | Flexible composite connecting pipe fitting for large-aperture plastic pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954171U true CN201954171U (en) | 2011-08-31 |
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ID=44498281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200430389U Expired - Lifetime CN201954171U (en) | 2011-02-21 | 2011-02-21 | Flexible composite connecting pipe fitting for large-aperture plastic pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954171U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434748A (en) * | 2011-11-25 | 2012-05-02 | 长春高祥特种管道有限公司 | Electric smelting type bellows connector and method for connecting gas metal pipe and polyethylene pipe |
| CN105547846A (en) * | 2015-12-29 | 2016-05-04 | 中国石油天然气股份有限公司 | Downhole flexible composite pipe service life prediction method |
| CN109373087A (en) * | 2018-11-16 | 2019-02-22 | 江阴金用管道有限公司 | Heavy caliber polyethylene socket pipe member of the bellmouth with skeleton |
-
2011
- 2011-02-21 CN CN2011200430389U patent/CN201954171U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434748A (en) * | 2011-11-25 | 2012-05-02 | 长春高祥特种管道有限公司 | Electric smelting type bellows connector and method for connecting gas metal pipe and polyethylene pipe |
| CN105547846A (en) * | 2015-12-29 | 2016-05-04 | 中国石油天然气股份有限公司 | Downhole flexible composite pipe service life prediction method |
| CN109373087A (en) * | 2018-11-16 | 2019-02-22 | 江阴金用管道有限公司 | Heavy caliber polyethylene socket pipe member of the bellmouth with skeleton |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |
|
| CX01 | Expiry of patent term |