CN201043661Y - Steel-plastic composite butt joint - Google Patents
Steel-plastic composite butt joint Download PDFInfo
- Publication number
- CN201043661Y CN201043661Y CNU2007201094675U CN200720109467U CN201043661Y CN 201043661 Y CN201043661 Y CN 201043661Y CN U2007201094675 U CNU2007201094675 U CN U2007201094675U CN 200720109467 U CN200720109467 U CN 200720109467U CN 201043661 Y CN201043661 Y CN 201043661Y
- Authority
- CN
- China
- Prior art keywords
- main body
- ring
- overcoat
- locking nut
- butt joint
- 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
- 210000001503 joint Anatomy 0.000 title claims abstract description 8
- 239000002131 composite material Substances 0.000 title abstract description 3
- 238000001746 injection moulding Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 241000580063 Ipomopsis rubra Species 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
A steel-plastic composite butt joint comprises a plastic inner lining main body in a butt joint shape, wherein a metal outer sleeve is sleeved on the outer side of the inner lining main body, a locking nut is arranged at an interface part of the outer sleeve, the outer sleeve is connected with the main body in an injection molding mode, and the outer sleeve is in threaded connection with the locking nut; the surface of the interface part of the lining main body is provided with a sealing ring mounting groove ring and a non-return groove ring with inverted teeth; the front end and the rear end of the C-shaped ring are in an inclined plane shape, the front end of the C-shaped ring is in contact with the inner inclined plane of the locking nut, the rear end of the C-shaped ring is in contact with the front inclined plane of the outer sleeve, and the inner surface of the C-shaped ring is provided with convex teeth which are aligned with the groove ring.
Description
(1) technical field
The utility model relates to a kind of pipe coupling.
(2) technical background
The copper material manufacturing is adopted in existing pipe coupling mostly, and copper sleeve is firm, corrosion-resistant, and it is more satisfactory to be used to make pipe coupling.But because the price of copper skyrockets recently, the price of copper sleeve also rises thereupon.Under this background, joint for plastic tube with low cost arises at the historic moment, but joint for plastic tube is having inborn defective aspect fastness, the serviceability, not sun-resistant and temperature variation, and working life is short, reveals easily, can not large-scale promotion use.
(3) summary of the invention
The utility model will solve low, the easy leakage of intensity of existing joint for plastic tube, the problem of poor durability, provide a kind of existing intensity, durable, anti-leakage good, steel-plastic composite pipe joint with low cost again.
The utility model adopts following technological scheme:
A kind of steel is moulded compound butt joint, comprise the liner main body that being of a plastic material docked head, the described liner main body outside is with the overcoat of metal material, and locking nut is equipped with at the interface position of overcoat, described overcoat is connected with the main body injection moulding, is threaded between overcoat and the locking nut; The joining part site surface of liner main body has seal ring that groove ring and the non-return groove ring that has pawl are installed; The front and back ends of C shape ring all takes the form of inclined plane, and the front end of C shape ring contacts with the interior inclined-plane of locking nut, and the rear end of C shape ring contacts with the front bevel of overcoat, on the internal surface of C shape ring protruding tooth is arranged, and this protruding tooth is aimed at described groove ring.
Further, on the described liner main body convex shoulder is arranged.
Main body of the present utility model adopts plastic material, has reduced cost, and plays the overcoat and the locking nut employing metal material of connection and fastening effect, has guaranteed intensity and serviceability.Adopt injection moulding to connect between main body and the overcoat, guaranteed that plastic components is connected with the firm of metal parts.When locking nut screwed, the front and back ends inclined-plane of C shape ring was squeezed, and inwardly shrank, and the protruding tooth on the C shape ring will be pressed into the contact segment of connecting tube over against the groove ring of its below, had played leakproof and the effect that firmly is connected.
The utility model has the advantages that: have good intensity, serviceability and cheap cost concurrently, anti-leakage is good and be connected firmly, being connected firmly of plastic components and metal parts, good airproof performance.
(4) description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the structural representation of C shape ring of the present utility model.
(5) embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Referring to accompanying drawing: a kind of steel is moulded compound butt joint, comprise the liner main body 1 that being of a plastic material docked head, described liner main body 1 outside is with the overcoat 2 of metal material, locking nut 3 is equipped with at the interface position of overcoat 2, described overcoat 2 is connected with main body 1 injection moulding, is threaded between overcoat 2 and the locking nut 3; The joining part site surface of liner main body 1 has seal ring that groove ring 4 and the non-return groove ring 5 that has pawl are installed; The front and back ends of C shape ring 6 all takes the form of inclined plane, and the front end of C shape ring 6 contacts with the interior inclined-plane of locking nut 3, and the rear end of C shape ring 6 contacts with the front bevel of overcoat 2, on the internal surface of C shape ring 6 protruding tooth 7 is arranged, and this protruding tooth 7 is aimed at described groove ring.On the described liner main body 1 convex shoulder 8 is arranged.
Main body 1 of the present utility model adopts plastic material, has reduced cost, and has played the overcoat 2 and the locking nut 3 employing metal materials of connection and fastening effect, has guaranteed intensity and serviceability.Adopt injection moulding to connect between main body 1 and the overcoat 2, guaranteed that plastic components is connected with the firm of metal parts.When locking nut 3 screwed, the front and back ends inclined-plane of C shape ring 6 was squeezed, and inwardly shrank, and the protruding tooth 7 on the C shape ring 6 will be pressed into the contact segment of connecting tube over against the groove ring of its below, had played leakproof and the effect that firmly is connected.
Claims (2)
1. a steel is moulded compound butt joint, it is characterized in that: comprise the liner main body that being of a plastic material docked head, the described liner main body outside is with the overcoat of metal material, locking nut is equipped with at the interface position of overcoat, described overcoat is connected with the main body injection moulding, is threaded between overcoat and the locking nut; The joining part site surface of liner main body has seal ring that groove ring and the non-return groove ring that has pawl are installed; The front and back ends of C shape ring all takes the form of inclined plane, and the front end of C shape ring contacts with the interior inclined-plane of locking nut, and the rear end of C shape ring contacts with the front bevel of overcoat, on the internal surface of C shape ring protruding tooth is arranged, and this protruding tooth is aimed at described groove ring.
2. steel as claimed in claim 1 is moulded compound butt joint, it is characterized in that: on the described liner main body convex shoulder is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201094675U CN201043661Y (en) | 2007-05-18 | 2007-05-18 | Steel-plastic composite butt joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201094675U CN201043661Y (en) | 2007-05-18 | 2007-05-18 | Steel-plastic composite butt joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201043661Y true CN201043661Y (en) | 2008-04-02 |
Family
ID=39258556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201094675U Expired - Fee Related CN201043661Y (en) | 2007-05-18 | 2007-05-18 | Steel-plastic composite butt joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201043661Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322554A (en) * | 2011-08-25 | 2012-01-18 | 张家港联冠新材料有限公司 | Medium-pressure steel wire reinforced plastic pipeline and pipe fitting connecting method |
-
2007
- 2007-05-18 CN CNU2007201094675U patent/CN201043661Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322554A (en) * | 2011-08-25 | 2012-01-18 | 张家港联冠新材料有限公司 | Medium-pressure steel wire reinforced plastic pipeline and pipe fitting connecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080402 Termination date: 20100518 |