CN201884821U - Interface bush and connecting structure for interface bush and composite pipe - Google Patents
Interface bush and connecting structure for interface bush and composite pipe Download PDFInfo
- Publication number
- CN201884821U CN201884821U CN2010205857085U CN201020585708U CN201884821U CN 201884821 U CN201884821 U CN 201884821U CN 2010205857085 U CN2010205857085 U CN 2010205857085U CN 201020585708 U CN201020585708 U CN 201020585708U CN 201884821 U CN201884821 U CN 201884821U
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- Prior art keywords
- interface
- composite pipe
- lining
- main body
- bush
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- Expired - Fee Related
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Abstract
The utility model discloses an interface bush for a steel-plastic composite pipe, which is arranged between a composite pipe and a connecting part and comprises a bush main body shaped like a hollow pipe; the bush main body is in bilateral symmetry; the left end and the right end of the bush main body are provided with a groove and a convex interface ring in sequence from outside to inside, wherein the groove is used for the installation of the sealing rings; and the convex joint ring is connected with the cut surface of the composite pipe. For the interface bush disclosed by the utility model, multi-layer sealing rings are adopted to cut off water and prevent water from entering the cut surface of the composite pipe, so that the sealing effect is good; the interface bush is arranged reasonably, and the bush main body is in bilateral symmetry, so that the installation is convenient; reinforcing ribs are symmetrically arranged on the bush main body, so that the strength of the bush is improved, the interface ring and the cut surface of the pipe piece are closely contacted, the fact that the end surface of the pipe piece is vertical to the axis is ensured, and the service life is prolonged.
Description
Technical field
The utility model relates to a kind of interface lining, belongs to closed conduit straight line connection area, relate in particular to a kind of interface lining that is used for steel-plastic composite pipe with and with the linkage structure of composite pipe.
Background technique
Since steel-plastic composite pipe have anticorrosive, non-corrosive, bright and clean nontoxic, mechanical strength is high, withstand voltage heat-resisting advantage, fields such as FLUID TRANSPORTATION such as extensive use and coal gas, tap water, chemical product.But steel-plastic composite pipe is the following shortcoming of ubiquity in using engineering: outside the section metallic material of pipe end and the adhesive portion between metal tube and the composite material are exposed to, under the washing away of current, cause composite material to peel off and the metal layer rustization for the tubing section.Present existing composite pipe jointing only has, and employing tapping on steel pipe is threaded with pipe fitting or adopts the mode of flange clip to be connected.So just have to adopt thicker steel pipe layer, increased the manufacture cost of pipeline, couple together cumbersomely yet, working efficiency is not high, and sealability is very bad.Because some composite pipes will cut into specification different in size as required in installation process, and section is difficult to and concentric is perpendicular, make outside the section metallic material of pipe end and the adhesive portion between metal tube and the composite material be exposed to, composite pipe in use can wash away to section that breaking appears in inner plastic and slowly peels off from the connection tangent plane of pipeline because of the infiltration of water, make metal layer be exposed in the current and oxidation takes place, thereby make the tube wall attenuation shorten composite pipe working life, increased the probability of composite pipe generation deformation and seepage.
Chinese patent (application number: 200820127860.1) " steel-plastic composite pipe with the interface lining with and the pipeline that constitutes with steel-plastic composite pipe " a kind of interface lining disclosed, be funnel shape, annular groove is given prominence to and be provided with in its big opening end outer, cooperate with the steel-plastic composite pipe mouth of pipe and wrap up the steel-plastic composite pipe mouth of pipe, described steel-plastic composite pipe stretches into the composite pipe inboard with the osculum end of interface lining, and is embedded on the internal diameter of steel-plastic composite pipe.This lining is used for granting asylum to the section of compound steel pipe, prevents to cause composite material to peel off for the tubing section and the metal layer rustization because of current scour.But because inner-walls of duct has weld seam, the funnel form lining can not contact with the inwall of pipe fully when weld flush is too high, allows water flow to the section of pipe easily, and when current were too quickly, water can flow to the section of pipe from the slit between funnel form lining and inner-walls of duct; And it installs inconvenience, is difficult to guarantee pipe fitting end face and axis normal that use sealing effect poor for a long time, working life is short behind the connection composite pipe.
The model utility content
At above-mentioned prior art existing problems, it is a kind of easy for installation that the purpose of this utility model is to provide, the interface lining that the steel-plastic composite pipe of good sealing effect is used.
To achieve these goals, the technical solution of the utility model is: a kind of interface lining, be located between composite pipe and the link, be included as the lining main body of hollow tubular, described lining main body bilateral symmetry sets gradually the groove that is useful on the installation seal ring, the interface rings that connects the projection of composite pipe section at two ends, lining main body left and right sides ecto-entad.Seal ring contacts with the composite pipe inwall, can prevent effectively that sealing enters the section of composite pipe; Interface rings and composite pipe section are adjacent to, and have guaranteed pipe fitting end face and axis normal.
Further, for the intensity that makes the lining main body is higher, interface rings is tightr with contacting of composite pipe, also is provided with stiffening rib between the interface rings of described the right and left.
Further, for the ease of installing, the external diameter size ecto-entad of described lining main body increases progressively, and in the stepped variation in groove both sides, when composite pipe was installed, seal ring can not hinder the installation of pipe fitting like this, and guarantees that seal ring can be enclosed within on the groove.
Further, described groove is minimum on lining main body both sides to be provided with two, makes sealing effect better.
Further, described stiffening rib is symmetrical arranged, and minimumly is provided with 4, not only improves the intensity of interface lining but also can allow interface rings and pipeline end face paste tightlyer.
As another kind of preferred version, the linkage structure of interface lining and composite pipe includes composite pipe, link and interface lining, and described interface lining is nested in the composite pipe, and composite pipe and link are by being threaded; Described linkage structure is formed by connecting by link and interface lining by two composite pipes.
Further, described link is the malleable cast iron pipe fitting joint, and the connecting thread that described composite pipe is connected with malleable cast iron pipe fitting is provided with antirust sealer or is wound with polytetrafluoroethylraw raw material band, guarantees good sealing effect.
Compared with prior art, the utlity model has following advantage: adopt multi-layer sealed circle, cut off water from the source and enter composite pipe section, good sealing effect; Adapter bush rationally is provided with, and symmetrical lining main body is easy for installation, and symmetrically arranged stiffening rib on the lining main body has improved the intensity of lining and interface rings is closely contacted with the pipe fitting section, guarantees pipe fitting end face and axis normal, increases the service life.
Description of drawings
Fig. 1 is the structural representation of the utility model interface lining and seal ring;
Fig. 2 is a seal ring and structural representation after the interface lining cooperates;
Fig. 3 is the sectional view of A-A direction among Fig. 2;
Fig. 4 is the broken section enlarged view of B-B direction among Fig. 2;
Fig. 5 is interface lining and composite pipe assembling schematic representation one;
Fig. 6 is interface lining and composite pipe assembling schematic representation two;
Fig. 7 is interface lining and composite pipe assembling schematic representation three.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
As shown in Figures 1 to 4, the interface lining that a kind of steel-plastic composite pipe is used, include the lining main body 1 of hollow tubular, lining main body 1 bilateral symmetry, set gradually the groove 7 that is useful on installation seal ring 2, the interface rings 8 that connects the projection of composite pipe section at two ends, lining main body 1 left and right sides ecto-entad, also be symmetrically arranged with 4 stiffening ribs 6 between the interface rings 8.Seal ring 2 is installed in the groove 7, and groove 7 is minimum on lining main body 1 both sides to be provided with two.The external diameter size ecto-entad of lining main body 1 increases progressively stepped variation.
The assembly process of the utility model interface lining and composite pipe is as follows:
As shown in Figure 2, seal ring 2 is packed on the groove 7 of lining main body 1, seal ring 2 can fully contact with the composite pipe inwall, prevents that the water of pipeline the inside from entering the section of steel pipe, prevents to cause composite material to peel off for the tubing section and the metal layer rustization because of current scour;
As shown in Figure 5, on the connecting thread of first composite pipe, 3 outer surfaces, twine antirust sealer or polytetrafluoroethylraw raw material band,, be adjacent to up to the tangent plane place and the interface rings 8 of first composite pipe 3 Yi Bian lining main body 1 is packed into first composite pipe 3;
As shown in Figure 6, first composite pipe, 3 precession malleable cast iron pipe fittings 4, up to first composite pipe 3 revolve motionless till;
As shown in Figure 7, on the connecting thread of second composite pipe, 5 outer surfaces, twine antirust sealer or polytetrafluoroethylraw raw material band, the another side of second composite pipe, 5 precession malleable cast iron pipe fittings 4, up to the tangent plane place of second composite pipe 5 and interface rings 8 another sides be adjacent to revolve motionless till.Whole assembly process finishes.
When interface rings 8 and composite pipe end face are adjacent to, can protect the pipeline section, do not allow it expose in air.And stiffening rib 6 is arranged between the interface rings 8, not only improve the intensity of interface lining but also can allow interface rings 8 and pipeline end face paste tightlyer.Stairstepping is made at the two ends of lining main body 1, and its external diameter is ascending by two ends to middle variation, is convenient to install, and can hinder seal ring 2 when the interface lining is connected with steel pipe like this and walk back, and guarantees that seal ring 2 is enclosed within on the groove 7.Twine antirust sealer or polytetrafluoroethylraw raw material band on the screw thread of composite pipe outer surface, anti-sealing is in the surface of contact intake channel of screw thread.Under the acting in conjunction of malleable cast iron pipe fitting 4, interface rings 8 and composite pipe tangent plane, guaranteed the end face and the axis normal of composite pipe.
Claims (9)
1. interface lining, be located between composite pipe and the link, be included as the lining main body (1) of hollow tubular, it is characterized in that, described lining main body (1) bilateral symmetry sets gradually the groove (7) that is useful on installation seal ring (2), the interface rings (8) that connects the projection of composite pipe section at lining main body (1) two ends, left and right sides ecto-entad.
2. interface lining according to claim 1 is characterized in that, also is provided with stiffening rib (6) between the interface rings of described the right and left (8).
3. interface lining according to claim 1 is characterized in that, the external diameter size ecto-entad of described lining main body (1) increases progressively.
4. interface lining according to claim 1 is characterized in that, described groove (7) is provided with two in that lining main body (1) both sides are minimum.
5. interface lining according to claim 2 is characterized in that, described stiffening rib (6) is symmetrical arranged.
6. interface lining according to claim 5 is characterized in that, described stiffening rib (6) is minimum to be provided with 4.
7. the linkage structure of described interface lining of claim 6 and composite pipe, it is characterized in that, comprise composite pipe (3,5), link and interface lining, described interface lining is nested in the composite pipe (3,5), and composite pipe (3,5) and link are by being threaded; Described linkage structure is formed by connecting by link and interface lining by two composite pipes.
8. linkage structure according to claim 7 is characterized in that, described link is malleable cast iron pipe fitting (a 4) joint.
9. linkage structure according to claim 8 is characterized in that, the connecting thread that described composite pipe (3,5) is connected with malleable cast iron pipe fitting (4) is provided with antirust sealer or is wound with polytetrafluoroethylraw raw material band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205857085U CN201884821U (en) | 2010-11-01 | 2010-11-01 | Interface bush and connecting structure for interface bush and composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205857085U CN201884821U (en) | 2010-11-01 | 2010-11-01 | Interface bush and connecting structure for interface bush and composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884821U true CN201884821U (en) | 2011-06-29 |
Family
ID=44182369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205857085U Expired - Fee Related CN201884821U (en) | 2010-11-01 | 2010-11-01 | Interface bush and connecting structure for interface bush and composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884821U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894296A (en) * | 2014-04-08 | 2014-07-02 | 江苏欧耐尔新型材料有限公司 | Fixture of centrifugal machine |
-
2010
- 2010-11-01 CN CN2010205857085U patent/CN201884821U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894296A (en) * | 2014-04-08 | 2014-07-02 | 江苏欧耐尔新型材料有限公司 | Fixture of centrifugal machine |
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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: 20110629 Termination date: 20131101 |