CN201803036U - High-pressure electric melting sleeve for butting steel-plastic composite pipes - Google Patents
High-pressure electric melting sleeve for butting steel-plastic composite pipes Download PDFInfo
- Publication number
- CN201803036U CN201803036U CN2010202501350U CN201020250135U CN201803036U CN 201803036 U CN201803036 U CN 201803036U CN 2010202501350 U CN2010202501350 U CN 2010202501350U CN 201020250135 U CN201020250135 U CN 201020250135U CN 201803036 U CN201803036 U CN 201803036U
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- electric melting
- sleeve
- composite pipe
- pipe
- melting sleeve
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Abstract
The utility model relates to a high-pressure electric melting sleeve for butting steel-plastic composite pipes, and mainly solves the problem in the conventional electric melting sleeve that when the conventional electric melting sleeve is used for butting ends of two composite pipes, axial force is generated due to a gap between the ends of the two pipes. The high-pressure electric melting sleeve is characterized in that V-shaped circumferential cogs (5) are formed in the middle of the inner wall of a plastic base body (1), and are matched with a slope at one end of a composite pipe I (6) and that at one end of a composite pipe II (7). The sleeve can eliminate the gap between butted pipe end surfaces to the utmost extent during the welding of the ends of the composite pipes, reduces the axial force borne by the electric melting sleeve, and improves the connection reliability of the electric melting sleeve.
Description
Technical field
The utility model relates to the sleeve that connects usefulness between a kind of steel-plastic composite pipe, butt joint electric smelting sleeve between especially a kind of high pressure steel-plastic composite pipe.
Background technique
Steel-plastic composite pipe generally comprises Steel Skeleton composite pipe, steel wire coiled composite tube, steel band composite pipe etc., and the electric smelting sleeve is generally adopted in the connection between this pipe, utilizes the mode of thermoplastic fusion weld, with the firmly butt joint in the electric smelting sleeve of two pipe ends.The structure of electric smelting sleeve is composited by polyethylene matrix, covering thread and Steel Skeleton.At present in the connection between steel skeleton plastic clad pipe, the electric smelting sleeve that uses is generally flat, the plastic substrate that is it partly is the cylinder bodily form, inside and outside wall is smooth, as shown in Figure 4, connect two steel-plastic composite pipes, after the thermoplastic fusion weld is finished with this electric smelting sleeve, the gap that one hoop is arranged between two pipe butt joint end faces, as shown in Figure 5.In the process of pipeline transport medium, internal pressure acts on the pipe end joint, can produce axial force on the pipe end face, caliber is big more and wall thickness value is big more, the axial force that produces is also big more, and the reliability that this axial force connects the electric smelting sleeve reduces, and influences the bearing pressure of whole tubing.
The model utility content
When between two compound pipe ends, docking,, pipe end produces axial force owing to existing the gap in order to solve existing electric capacity sleeve, the problem that electric smelting sleeve connection reliability is reduced, and the utility model provides butt joint electric smelting sleeve between a kind of high pressure steel-plastic composite pipe.This sleeve can be eliminated the gap between the butt tube end face to greatest extent in the butt joint of composite pipe pipe end, reduce the axial force that the electric smelting sleeve is born, and improves the reliability that the electric smelting sleeve connects.
The technical solution of the utility model is: butt joint electric smelting sleeve between a kind of high pressure steel-plastic composite pipe, the tubular plastic substrate that comprises covering thread, wiring terminal, embedded Steel Skeleton, wherein, the circumferential fin that " V " font is arranged in the inwall intermediate portion of plastic substrate, and match with the inclined-plane of composite pipe I and composite pipe II pipe end.
Covering thread is abound with in the inwall of the plastic substrate that comprises circumferential fin, and is connected with the wiring terminal that is fixed in the plastic substrate two ends.
The beneficial effects of the utility model are: owing to be provided with the circumferential fin of " V " font at the plastic substrate inwall, coincide with the pipe end seal that has the inclined-plane, after the electric heating, the plastics of fusion can be with the complete firm welding of fin on the matrix inwall and pipe end inclined-plane, make two pipe end faces not the welding area significantly reduce, effectively eliminate the influence of the axial force that causes because of composite pipe butt joint end clearance, thereby improve the bearing pressure of whole tubing for the melting welding of electric smelting sleeve.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is compound pipe end welding effect schematic representation;
Fig. 3 is the partial enlarged drawing of Fig. 2;
Fig. 4 is the structural representation of existing electric smelting sleeve;
Fig. 5 is existing electric smelting sleeve welding effect schematic representation.
1-plastics among the figure, 2-Steel Skeleton, 3-covering thread, 4-wiring terminal, the circumferential fin of 5-, 6-composite pipe I, 7-composite pipe II.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Extremely shown in Figure 3 by Fig. 1, butt joint comprises covering thread 3, wiring terminal 4, Steel Skeleton 2 and plastic substrate 1 with the electric smelting sleeve between this kind high pressure steel-plastic composite pipe, wherein Steel Skeleton 2 is embedded in the high-density polyethylene plastics matrix 1 by mould-forming, the two ends link post 4 of plastic substrate 1.The circumferential fin 5 that " V " font is arranged in the inwall intermediate portion of described plastic substrate 1, and match with the pipe end inclined-plane of composite pipe I6 that docks and composite pipe II7; Covering thread 3 is abound with in the inwall of plastics 1, comprises the surface of circumferential fin 5, and the two ends of covering thread 3 is connected with the wiring terminal 4 at plastic substrate 1 two ends, as shown in Figure 1.
During the butt joint of two-supremes compressed steel plastic composite end, to insert in this sleeve with supporting composite pipe I6 and the composite pipe II7 of this electric smelting sleeve, because there is the circumferential fin 5 of V-type at this electric smelting sleeve plastic substrate 1 inwall middle part, coincide with the inclined-plane of composite pipe I6 and composite pipe II7 end face, after the energising, after the polyvinyl plastics fusion of electric smelting sleeve lining, two composite pipe pipe ends and electric smelting sleeve lining are welded together, as shown in Figures 2 and 3.Make two pipe end faces not the melting welding area significantly reduce, effectively eliminated the influence of the axial force that causes because of composite pipe butt joint end clearance for the electric smelting sleeve, improved the bearing pressure of whole tubing.
Claims (2)
1. butt joint electric smelting sleeve between a high pressure steel-plastic composite pipe, the tubular plastic substrate (1) that comprises covering thread (3), wiring terminal (4), embedded Steel Skeleton (2), it is characterized in that: there is the circumferential fin (5) of " V " font the inwall intermediate portion of plastic substrate (1), and matches with the inclined-plane of composite pipe I (6) and composite pipe II (7) pipe end.
2. butt joint electric smelting sleeve between a kind of high pressure steel-plastic composite pipe according to claim 1, it is characterized in that: covering thread (3) is abound with in the inwall of the plastic substrate that comprises circumferential fin (5) (1), and is connected with the wiring terminal (4) that is fixed in plastic substrate (1) two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202501350U CN201803036U (en) | 2010-07-07 | 2010-07-07 | High-pressure electric melting sleeve for butting steel-plastic composite pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202501350U CN201803036U (en) | 2010-07-07 | 2010-07-07 | High-pressure electric melting sleeve for butting steel-plastic composite pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201803036U true CN201803036U (en) | 2011-04-20 |
Family
ID=43872534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202501350U Expired - Fee Related CN201803036U (en) | 2010-07-07 | 2010-07-07 | High-pressure electric melting sleeve for butting steel-plastic composite pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201803036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780868A (en) * | 2020-12-31 | 2021-05-11 | 宝鸡天联汇通复合材料有限公司 | Non-metal connecting joint for composite pipe and connecting method |
-
2010
- 2010-07-07 CN CN2010202501350U patent/CN201803036U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780868A (en) * | 2020-12-31 | 2021-05-11 | 宝鸡天联汇通复合材料有限公司 | Non-metal connecting joint for composite pipe and connecting method |
| CN112780868B (en) * | 2020-12-31 | 2023-09-29 | 宝鸡天联汇通复合材料有限公司 | Connection method of nonmetallic connection joint for composite pipe |
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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 |
Granted publication date: 20110420 Termination date: 20150707 |
|
| EXPY | Termination of patent right or utility model |