CN203348791U - Plastic-coated composite steel pipe connecting structure - Google Patents
Plastic-coated composite steel pipe connecting structure Download PDFInfo
- Publication number
- CN203348791U CN203348791U CN 201320422359 CN201320422359U CN203348791U CN 203348791 U CN203348791 U CN 203348791U CN 201320422359 CN201320422359 CN 201320422359 CN 201320422359 U CN201320422359 U CN 201320422359U CN 203348791 U CN203348791 U CN 203348791U
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- China
- Prior art keywords
- steel pipe
- seal ring
- attachment face
- coated composite
- composite steel
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Abstract
The utility model discloses a plastic-coated composite steel pipe connecting structure which comprises a female end and a male end. The female end and the male end are positioned at two ends of a steel pipe and connected with a male end of a second steel pipe and a female end of a third steel pipe respectively, and the shape of the outer wall of the male end is matched with that of the inner wall of the female end. The plastic-coated composite steel pipe connecting structure is simple in machining process and convenient to mount and has the advantages of fine shock resistance and stress distribution uniformity, a joint has a fine sealing effect, and the quality of the steel pipes can be effectively ensured.
Description
Technical field
The utility model relates to the pipeline connection technology field, particularly a kind of linkage structure of simple in structure, the plastic coated composite steel pipe of being convenient to fitting operation.
Background technique
Pipeline is the most quick, the economic and method reliably of fed sheet of a media, and rock gas, water, oil, coal cinder etc. can be carried by pipeline.Pipeline commonly used comprises plastic tube, cement pipe, cast iron tube, steel pipe etc., particularly steel pipe at present, because its performance quality is better than other tubing greatly, therefore is widely used.Development along with social productive forces, the pipe diameter used on commercial Application at present is increasing, the interface of steel pipe installs that the complex process, the efficiency that exist are poor, construction cost is high, it is also just more obvious affect the weakness such as the interface quality factor is more, becomes the most important factor that the restriction steel pipeline develops.
The modes such as current steel pipe interface shape mainly contains and is threaded, flange connects and be welded to connect, wherein be threaded and be only applicable to minor-diameter steel-tube, although and flange connects reliably appropriate and is applicable to large diameter steel pipe, need to increase the accessories such as flange, cost is very high-leveled and difficult generally to apply.Be welded to connect owing to being on-the-spot manual operation, have especially that complex process is backward, labor intensity is large, efficiency of construction is low, weldquality is subject to environment, weather and a larger defect of the horizontal image of operator.Therefore, how to provide a kind of steel pipe connection structure easy for installation, reliable in quality just to become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect of the prior art, and linkage structure of a kind of simple in structure, easy installation and reliable plastic coated composite steel pipe and attaching method thereof is provided.
For reaching above-mentioned purpose, the utility model provides a kind of linkage structure of plastic coated composite steel pipe, comprise and be positioned at taking the lead and plug of steel pipe two ends, be used for respectively connecting the plug of the second steel pipe and taking the lead of the 3rd steel pipe, the outer wall shape of described plug and described inner wall shape of taking the lead match.
Linkage structure according to a kind of plastic coated composite steel pipe the utility model proposes, wherein said plug and described taking the lead dilate mode by machinery and form, described inwall of taking the lead comprises guide surface, seal ring attachment face and locating face successively, described guide surface is the conical surface that diameter diminishes gradually from outside to inside, the groove that described seal ring attachment face is evagination; Described locating face is cylndrical surface; The outer wall of described plug comprises transitional surface and inserting surface successively, and described transitional surface is that diameter becomes large conical surface gradually from outside to inside, and described inserting surface is cylndrical surface.
According to the linkage structure of a kind of plastic coated composite steel pipe the utility model proposes, wherein said seal ring attachment face comprises the circular arc attachment face of evagination and the circular cone attachment face tangent with described circular arc attachment face.
Linkage structure according to a kind of plastic coated composite steel pipe the utility model proposes, between wherein said guide surface and described seal ring attachment face, between described seal ring attachment face and described locating face, and all by transition arc, be connected between described transitional surface and described inserting surface.
Linkage structure according to a kind of plastic coated composite steel pipe the utility model proposes, wherein also comprise seal ring, be arranged in described seal ring attachment face, described seal ring matches with the shape at the described seal ring attachment face place of combining and the shape of described seal ring attachment face.
According to the linkage structure of a kind of plastic coated composite steel pipe the utility model proposes, wherein said seal ring together with the junction of described inserting surface also comprises, twice or multiple-sealed ring.
Compared with prior art, linkage structure of plastic coated composite steel pipe of the present utility model and attaching method thereof, processing technology is simple, easy for installation, the jointing place has good sealing effect, and has that shock resistance is good, the uniform advantage of stress distribution, can effectively guarantee the quality that steel pipe connects.
The accompanying drawing explanation
Fig. 1 is taking the lead and the plug connecting structure schematic diagram of the utility model embodiment;
The structural representation of taking the lead that Fig. 2 is the utility model embodiment;
The plug construction schematic diagram that Fig. 3 is the utility model embodiment;
The ring structure schematic diagram that Fig. 4 is the utility model embodiment.
Description of reference numerals: 10-takes the lead; The 20-plug; The 11-guide surface; 12-seal ring attachment face; The 13-locating face; 121-circular arc attachment face; 122-circular cone attachment face; The 21-transitional surface; The 22-inserting surface.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is carried out to clear, complete description, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment who obtains under creativity work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, is linkage structure schematic diagram of the present utility model.The utility model is for being connected to form many steel pipes from beginning to end the transmission channel of long distance.In order to realize connecting, arrange at the two ends of every steel pipe and take the lead 10 and plug 20,10 the inner wall shape of wherein taking the lead and the outer wall shape of plug 20 match, within guaranteeing that with this plug 20 can be placed in 10 the die cavity of taking the lead just.During concrete the installation, the plug of first steel pipe 20 is inserted to taking the lead in 10 of second steel pipe, the plug of second steel pipe 20 is inserted to taking the lead in 10 of the 3rd steel pipe, by that analogy, thereby realize the connection between many steel pipes.
Please continue to consult Fig. 2, Fig. 3, be respectively of the present utility model and take the lead and the structural representation of plug.As shown in Figure 2,10 the inwall of taking the lead of the present utility model comprises guide surface 11, seal ring attachment face 12 and locating face 13 successively, described guide surface 11 is the conical surface that diameter diminishes gradually from outside to inside, the groove that described seal ring attachment face 12 is evagination, specifically comprise the circular arc attachment face 121 of evagination and the circular cone attachment face 122 tangent with described circular arc attachment face 121; Described locating face 13 is cylndrical surface, in order to 20 certralizing abilities of plug to installing.Next refer to Fig. 3, therefrom can find out that the outer wall of plug 20 comprises transitional surface 21 and inserting surface 22 successively, described transitional surface 21 is that diameter becomes large conical surface gradually from outside to inside, and described inserting surface 22 is cylndrical surface.
Be provided with seal ring 30 in seal ring attachment face 12 of the present utility model, the arch structure that the profile of sealing circle 30 is evagination, match with the groove shape in seal ring attachment face 12.In addition according to practical situations, described seal ring 30 together with the junction of described inserting surface also comprises, twice or multiple-sealed ring 31, to reach different sealing effects, its concrete seal degree is directly proportional to manifold pressure; Provided the structure of the seal ring 30 with two seals ring 31 in the specific embodiment of Fig. 4.
In sum, the utility model processing technology is simple, easy for installation, and the jointing place has good sealing effect, and has that shock resistance is good, the uniform advantage of stress distribution, can effectively guarantee the quality that steel pipe connects.
Above is illustrative to description of the present utility model; and it is nonrestrictive; those skilled in the art is understood, and can carry out many modifications, variation or equivalence to it within the spirit limited in claim and scope, but they all will fall in protection domain of the present utility model.
Claims (6)
1. the linkage structure of a plastic coated composite steel pipe, is characterized in that, comprises and be positioned at taking the lead and plug of steel pipe two ends, is used for respectively connecting the plug of the second steel pipe and taking the lead of the 3rd steel pipe, and the outer wall shape of described plug and described inner wall shape of taking the lead match.
2. the linkage structure of a kind of plastic coated composite steel pipe according to claim 1, it is characterized in that, described plug and described taking the lead dilate mode by machinery and form, described inwall of taking the lead comprises guide surface, seal ring attachment face and locating face successively, described guide surface is the conical surface that diameter diminishes gradually from outside to inside, the groove that described seal ring attachment face is evagination; Described locating face is cylndrical surface; The outer wall of described plug comprises transitional surface and inserting surface successively, and described transitional surface is that diameter becomes large conical surface gradually from outside to inside, and described inserting surface is cylndrical surface.
3. the linkage structure of a kind of plastic coated composite steel pipe according to claim 2, is characterized in that, described seal ring attachment face comprises the circular arc attachment face of evagination and the circular cone attachment face tangent with described circular arc attachment face.
4. according to the linkage structure of claim 2 or 3 described a kind of plastic coated composite steel pipes, it is characterized in that, between described guide surface and described seal ring attachment face, between described seal ring attachment face and described locating face, and all by transition arc, be connected between described transitional surface and described inserting surface.
5. the linkage structure of a kind of plastic coated composite steel pipe according to claim 2, it is characterized in that, also comprise seal ring, be arranged in described seal ring attachment face, described seal ring matches with the shape at the described seal ring attachment face place of combining and the shape of described seal ring attachment face.
6. the linkage structure of a kind of plastic coated composite steel pipe according to claim 5, is characterized in that, described seal ring together with the junction of described inserting surface also comprises, twice or multiple-sealed ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320422359 CN203348791U (en) | 2013-07-16 | 2013-07-16 | Plastic-coated composite steel pipe connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320422359 CN203348791U (en) | 2013-07-16 | 2013-07-16 | Plastic-coated composite steel pipe connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348791U true CN203348791U (en) | 2013-12-18 |
Family
ID=49748691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320422359 Expired - Fee Related CN203348791U (en) | 2013-07-16 | 2013-07-16 | Plastic-coated composite steel pipe connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295829A (en) * | 2013-07-16 | 2015-01-21 | 山东沃亚森曼机械科技有限公司 | Connecting structure of plastic-coated composite steel pipe and connecting method thereof |
-
2013
- 2013-07-16 CN CN 201320422359 patent/CN203348791U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295829A (en) * | 2013-07-16 | 2015-01-21 | 山东沃亚森曼机械科技有限公司 | Connecting structure of plastic-coated composite steel pipe and connecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131218 Termination date: 20170716 |