CN204477525U - A kind of threaded metal plastic composite pipe - Google Patents
A kind of threaded metal plastic composite pipe Download PDFInfo
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- CN204477525U CN204477525U CN201420833871.7U CN201420833871U CN204477525U CN 204477525 U CN204477525 U CN 204477525U CN 201420833871 U CN201420833871 U CN 201420833871U CN 204477525 U CN204477525 U CN 204477525U
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- composite pipe
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Abstract
The utility model belongs to the technical field of tubing, discloses a kind of threaded metal plastic composite pipe.Described threaded metal plastic composite pipe comprises outer plastic layer, inner plastic layer and be positioned at middle metal tube layer, the outer surface of described metal tube layer is provided with outside thread or stiffening rib, the internal surface of described metal tube layer is provided with internal thread, and described outer plastic layer is connected with metal tube layer by the screw thread corresponding to described outside thread or the groove corresponding with described stiffening rib; Described inner plastic layer is connected with metal tube layer by the screw thread corresponding to described internal thread.In described composite pipe, the screw thread of layer on surface of metal or stiffening rib, enhance the adhesive strength of metal layer and plastic layer, avoids metal tube and plastic layer easily occurs the problem of coming off, and improves pipeline pressure grade.Simultaneously described composite pipe has the advantages such as good, the less scaling and flow resistance of good mechanical strength, good corrosion resistance, heat insulation effect is little, is applicable to the fields such as mine, oil, chemical industry, municipal administration, building.
Description
Technical field
The utility model belongs to the technical field of tubing, relates to a kind of composite pipe, is specifically related to a kind of threaded metal plastic composite pipe.
Background technique
Composite metal-plastic pipe has the advantage of plastic tube and metal tube concurrently, and with its good mechanical strength, good corrosion resistance, heat insulation effect, good, less scaling and flow resistance is little etc., and advantage is widely used in industry and mining and daily life.But there are some shortcoming and defect in existing composite metal-plastic pipe.Patent 99240040.6 discloses one " steel-plastic composite pipe ", plastic layer and steel pipe are bonded together at steel pipe inner and outer surface tackiness agent by this pipeline, but along with use time constantly increase, easily occur between the plastic layer of steel pipe and steel inner and outer surface departing from, thus cause the corrosion of steel-plastic composite pipe, reduction of service life.Patent 200520033120.8 discloses one " steel-plastic composite pipe ", this pipeline with the cylindrical metal skeleton of cellular structure for reinforcement, connected by the plastic layer of hole by hole pattern tubular construction inner and outer surface, solve the problem easily occurring between metal frame and plastic layer departing from, but hole existence causes problem of stress concentration, pipeline pressure grade is made to fail fully to improve.
Model utility content
In order to overcome shortcoming and defect of the prior art, the purpose of this utility model is to provide a kind of threaded metal plastic composite pipe, screw thread metal pipe in this composite pipe not only effectively solves the problem occurring between metal frame and plastic layer departing from, and screw thread metal pipe can fully improve pipeline pressure grade.
The utility model is achieved through the following technical solutions:
A kind of threaded metal plastic composite pipe, comprises outer plastic layer, inner plastic layer and intermediate metal tube layer; The outer surface of described metal tube layer is provided with outside thread or stiffening rib, and the internal surface of described metal tube layer is provided with internal thread.
Described outer plastic layer is connected with metal tube layer by the screw thread corresponding to described outside thread or the groove corresponding with described stiffening rib; Described inner plastic layer is connected with metal tube layer by the screw thread corresponding to described internal thread.
Described stiffening rib is by being wound around at metal tube layer outer surface and being welded.
Described stiffening rib is helical.
Described threaded metal plastic composite pipe, also comprise sticker layer, described sticker layer is arranged between described outer plastic layer and metal tube layer or is arranged between inner plastic layer and metal tube layer or outer plastic layer and metal tube layer and between inner plastic layer and metal tube layer.
Described metal tube layer is steel metal layer, copper metal layer and aluminum metal layer.
Described outer plastic layer and inner plastic layer are polyethylene layer, polypropylene layer and polyvinyl chloride layer.
Described outer plastic layer can also for adding the plastic layer of nano particle; Described inner plastic layer can also for adding the plastic layer of nano particle.Nano particle is added in plastic substrate, can the intensity of reinforced plastic layer and hardness.Described nano particle is the inorganic nanoparticles through modification, improves nano particle dispersiveness in the plastic by modification.
The production method of described screw thread metal pipe inner and outer surface screw thread is for directly to go out screw thread at described metal tube inner and outer surface car; The production method of described stiffening rib is for being wound around stiffening rib at metal tube outer surface and being welded.Described threaded metal plastic composite pipe production method has: 1. described interior outer plastic layer is prepared from by extruding and moulding; 2. described outer plastic layer becomes corresponding screw thread by plastic tube internal surface car and is combined on described metal threaded tube outer surface; 3. described inner plastic layer becomes corresponding screw thread by plastic tube outer surface car and is combined on described metal threaded pipe internal surface.
Relative to prior art, the utility model has the following advantages and beneficial effect:
(1) threaded metal plastic composite pipe described in the utility model improves by carrying out processing to metal pipe structure, metal tube inner and outer surface is made to have screw thread or stiffening rib, thus enhance the adhesive strength of metal reinforcement and plastic layer, avoid composite metal-plastic pipe and use rear metal tube and plastic layer easily to occur the problem of coming off for a long time;
(2) because metal reinforcement does not have pertusate existence in the threaded metal plastic composite pipe described in, therefore can make full use of the excellent mechanical performances of metal reinforcement, avoid and use cellular structure metal frame and fail fully to improve the deficiency of pipeline pressure grade;
(3) the threaded metal plastic composite pipe described in has the advantage of flexible design, and it uses working pressure can adopt the pipe thickness of corresponding metal tube and the degree of depth of internal and external threads according to user to the working pressure size design that tubing uses;
(4) described threaded metal plastic composite pipe has the advantages such as good, the less scaling and flow resistance of good mechanical strength, good corrosion resistance, heat insulation effect is little, is therefore applicable to the fields such as mine, oil, chemical industry, municipal administration, building.
Accompanying drawing explanation
Fig. 1 is threaded metal plastic composite pipe structural representation;
Fig. 2 is the sectional view of threaded metal plastic composite pipe in Fig. 1;
Fig. 3 is threaded metal plastic composite pipe axial, cross-sectional view in Fig. 1;
Fig. 4 is the sectional view of threaded metal plastic composite pipe;
Fig. 5 is the axial, cross-sectional view of the threaded metal plastic composite pipe of Fig. 4;
In figure: 1-metal tube layer, 2-outside thread, 3-outer plastic layer, 4-internal thread, 5-inner plastic layer, the outer stiffening rib of 6-.
Embodiment
Below in conjunction with embodiment and accompanying drawing, further detailed description is done to the utility model, but mode of execution of the present utility model is not limited thereto.
Embodiment 1:
A kind of threaded metal plastic composite pipe, comprises metal tube layer 1, the outside thread 2 of metal tube layer outer surface, outer plastic layer 3, the internal thread 4 of metal tube layer internal surface and inner plastic layer 5; Described outer plastic layer 3 is connected with metal tube layer 1 by the screw thread corresponding to described outside thread 2; Described inner plastic layer 5 is connected with metal tube layer 1 by the screw thread corresponding to described internal thread 4.As shown in Figure 1.
Described outside thread 2 directly can go out screw thread at metal layer outer surface car, and described internal thread 4 directly can go out screw thread at metal layer internal surface car.Above-mentioned metal tube is F steel, or Q195 steel or Q215 steel or Q235 steel or other metal.Above-mentioned plastic layer is polyethylene layer, polypropylene layer, polyvinyl chloride layer or nano plastic layer etc.Metal tube diameter is 20mm ~ 2000mm, and metal tube thickness is 2mm ~ 100mm, plastic layer 2mm ~ 100mm, and height of thread is 1mm ~ 50mm, and flight pitch is 1mm ~ 100mm.
Embodiment 2:
A kind of threaded metal plastic composite pipe, comprises metal tube layer 1, stiffening rib 6, outer plastic layer 3, internal thread 4 and inner plastic layer 5; Described outer plastic layer 3 is connected with metal tube layer 1 by the groove corresponding with described stiffening rib 6; Described inner plastic layer 5 is connected with metal tube layer 1 by the screw thread corresponding to described internal thread 4.As shown in Figure 2.
Described outer stiffening rib 6 is wound around stiffening rib at metal tube outer surface and is welded, and described internal thread 4 directly goes out screw thread at metal tube internal surface car.Above-mentioned metal tube is F steel, or Q195 steel or Q215 steel or Q235 steel or other metal.Above-mentioned plastic layer is polyethylene layer, polypropylene layer, polyvinyl chloride layer or nano plastic layer etc.Metal tube diameter is 20mm ~ 2000mm, and metal tube thickness is 2mm ~ 100mm, plastic layer 2mm ~ 100mm, height of thread is 1mm ~ 50mm, flight pitch is 1mm ~ 100mm, and stiffening rib diameter is 1mm ~ 50mm, and stiffening rib spacing is 1mm ~ 100mm.
Embodiment 3:
A kind of threaded metal plastic composite pipe, comprise metal tube layer 1, outside thread 2, outer plastic layer 3, internal thread 4 and inner plastic layer 5, described outer plastic layer 3 is connected with metal tube layer 1 by the screw thread corresponding to described outside thread 2; Described inner plastic layer 5 is connected with metal tube layer 1 by the screw thread corresponding to described internal thread 4.
As shown in Figure 1, described outer plastic layer 3 and inner plastic layer 5 are made by extruding and moulding autofrettage.Above-mentioned metal tube layer can be F steel, or Q195 steel or Q215 steel or Q235 steel or other metal.Above-mentioned plastic layer can be polyethylene layer, polypropylene layer, polyvinyl chloride layer or nano plastic layer etc.Metal tube diameter is 20mm ~ 2000mm, and metal tube thickness is 2mm ~ 100mm, plastic layer 2mm ~ 100mm, and height of thread is 1mm ~ 50mm, and flight pitch is 1mm ~ 100mm.
Embodiment 4:
A kind of threaded metal plastic composite pipe, comprise metal tube layer 1, outside thread 2, outer plastic layer 3, internal thread 4 and inner plastic layer 5, described outer plastic layer 3 is connected with metal layer 1 by the screw thread corresponding to described outside thread 2; Described inner plastic layer 5 is connected with metal tube layer 1 by the screw thread corresponding to described internal thread 4, as shown in Figure 1.
Described outer plastic layer 3 becomes corresponding screw thread by plastic tube internal surface car and is combined on outer surface of metal pipe, and described inner plastic layer 5 is become corresponding screw thread by plastic tube outer surface car and is combined on metal pipe internal surface.Above-mentioned metal layer is F steel, or Q195 steel or Q215 steel or Q235 steel or other metal.Above-mentioned plastic layer can be polyethylene layer, polypropylene layer, polyvinyl chloride layer or nano plastic layer etc.Metal tube diameter is 20mm ~ 2000mm, and metal tube thickness is 2mm ~ 100mm, plastic layer 2mm ~ 100mm, and height of thread is 1mm ~ 50mm, and flight pitch is 1mm ~ 100mm.
Embodiment 5:
A kind of threaded metal plastic composite pipe, comprise metal tube layer 1, outside thread 2, outer plastic layer 3, internal thread 4, inner plastic layer 5 and sticker layer, described outer plastic layer 3 is connected with metal layer 1 by the screw thread corresponding to described outside thread 2; Described inner plastic layer 5 is connected with metal tube layer 1 by the screw thread corresponding to described internal thread 4, is equipped with sticker layer between described outside thread 2 and outer plastic layer 3 and between internal thread 4 and inner plastic layer 5.
Above-mentioned metal tube layer is F steel, or Q195 steel or Q215 steel or Q235 steel or other metal.Above-mentioned plastic layer is polyethylene layer, polypropylene layer, polyvinyl chloride layer or nano plastic layer etc.Metal tube (metal tube layer) diameter is 20mm ~ 2000mm, and metal tube (metal tube layer) thickness is 2mm ~ 100mm, plastic layer 2mm ~ 100mm, and height of thread is 1mm ~ 50mm, and flight pitch is 1mm ~ 100mm.
As mentioned above, just can realize the utility model preferably, above-described embodiment is only section Example of the present utility model, is not used for limiting practical range of the present utility model; Namely all equalizations done according to the utility model content change and modify, all by the utility model claim scope required for protection is contained.
Claims (7)
1. a threaded metal plastic composite pipe, comprises outer plastic layer, and inner plastic layer and middle metal tube layer, is characterized in that: the outer surface of described metal tube layer is provided with outside thread or stiffening rib, and the internal surface of described metal layer is provided with internal thread.
2. threaded metal plastic composite pipe according to claim 1, is characterized in that: described outer plastic layer is connected with metal tube layer by the screw thread corresponding to described outside thread; Described inner plastic layer is connected with metal tube layer by the screw thread corresponding to described internal thread.
3. threaded metal plastic composite pipe according to claim 1, is characterized in that: described outer plastic layer is connected with metal tube layer by the groove corresponding with described stiffening rib.
4. threaded metal plastic composite pipe according to claim 1, is characterized in that: described stiffening rib is helical stiffening rib.
5. threaded metal plastic composite pipe according to claim 1, it is characterized in that: also comprise sticker layer, described sticker layer is arranged between described outer plastic layer and metal tube layer or is arranged between inner plastic layer and metal tube layer or outer plastic layer and metal tube layer and between inner plastic layer and metal tube layer.
6. threaded metal plastic composite pipe according to claim 1, is characterized in that: described outer plastic layer and inner plastic layer are polyethylene layer, polypropylene layer or polyvinyl chloride layer.
7. threaded metal plastic composite pipe according to claim 1, is characterized in that: described metal layer is steel metal layer, copper metal layer and aluminum metal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833871.7U CN204477525U (en) | 2014-12-24 | 2014-12-24 | A kind of threaded metal plastic composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833871.7U CN204477525U (en) | 2014-12-24 | 2014-12-24 | A kind of threaded metal plastic composite pipe |
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| Publication Number | Publication Date |
|---|---|
| CN204477525U true CN204477525U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420833871.7U Expired - Fee Related CN204477525U (en) | 2014-12-24 | 2014-12-24 | A kind of threaded metal plastic composite pipe |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828740A (en) * | 2020-06-29 | 2020-10-27 | 申蕾 | Steel band reinforcing PVC pipe |
| CN113339597A (en) * | 2021-05-27 | 2021-09-03 | 余启成 | Steel band reinforcing PVC pipe |
-
2014
- 2014-12-24 CN CN201420833871.7U patent/CN204477525U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828740A (en) * | 2020-06-29 | 2020-10-27 | 申蕾 | Steel band reinforcing PVC pipe |
| CN111828740B (en) * | 2020-06-29 | 2022-03-04 | 江苏科信光电科技有限公司 | Steel band reinforcing PVC pipe |
| CN113339597A (en) * | 2021-05-27 | 2021-09-03 | 余启成 | Steel band reinforcing PVC pipe |
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| Date | Code | Title | Description |
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| 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: 20150715 Termination date: 20171224 |
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| CF01 | Termination of patent right due to non-payment of annual fee |