CN2700683Y - Plastic-steel composite pipe joint - Google Patents
Plastic-steel composite pipe joint Download PDFInfo
- Publication number
- CN2700683Y CN2700683Y CN 200420069562 CN200420069562U CN2700683Y CN 2700683 Y CN2700683 Y CN 2700683Y CN 200420069562 CN200420069562 CN 200420069562 CN 200420069562 U CN200420069562 U CN 200420069562U CN 2700683 Y CN2700683 Y CN 2700683Y
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- CN
- China
- Prior art keywords
- plastic
- pipe
- joint
- sealing
- steel composite
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- 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
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Abstract
The utility model discloses a plastic-steel composite pipe joint, comprising a joint body. The inner wall sealing surfaces of the joint holes in the joint body are horn shaped and the bottoms of the joint holes with horn-shaped inner wall sealing surfaces are provided with sealing steps whose width is bigger than the thickness of plastic-steel pipes. The sealing steps are provided with sealing calking grooves which can be inserted in the plastic pipes. Because a horn-shaped structure is used to fit a pipe, the plastic steel composite pipe joint becomes a relatively tight sealing structure. Sealing surfaces between plastics of a pipe body and a pipe fitting body are tightly connected into one body. The metallic material on the fracture face of an end of the pipe is tightly coated by a plastic and integrated with the plastic. Therefore, a procedure of sealing the fracture of the pipe head for the pipe can be omitted, and manpower and material are saved. The plastic steel composite pipe joint is easy to connect. Because the inside steel layer can come out, the corrosion of the pipe and the leakage generated after the pipe being corroded are avoided. Thus, safer guarantee is provided to the use of the pipe.
Description
Technical field
The utility model relates to a kind of pipe coupling, particularly a kind of plastic steel composite pipe joint.
Technical background
At present, the general-purpose plastics pipe fitting is being connected in the using process with tubing with plastic steel composite pipe spare on the market, because the fit dimension between pipe fitting body internal diameter and the tubing termination external diameter is difficult to reach usage requirement fully, therefore, the very easy generation of the connection part between tubing and the pipe fitting is revealed.In addition, in the connection procedure of moulding guiding principle composite pipe and pipe fitting, because of existing steel, tubing end incision position moulds the not phenomenon of phase affinity, when pipeline under pressure, the pressure medium in the pipeline can be fled between the plastic-steel of the incision position of plastic-steel tubing, thereby produces corrosion and reveal, therefore, before being connected of pipe fitting and tubing, just must carry out one plastic packaging formality at the incision position of tubing, thereby not only time-consuming but also take a lot of work.Moreover, the connection of plastic steel composite pipe joint all is to mould layer by hot melt or electric molten fusing to connect, fit dimension between pipe joint external diameter and the joint internal diameter also is difficult to control, very easy causing connect to reveal, the very easy steel layer of centre that makes was exposed after particularly layer was moulded in fusing, cause that pipeline is corroded, at chemical industry or the very easy serious accident that causes of field of medicaments.
The model utility content
The purpose of this utility model is a kind of easy to connect, firm, good seal performance is provided for the deficiency that solves above-mentioned technology, is difficult for the plastic steel composite pipe joint that is corroded and reveals.
In order to achieve the above object, a kind of plastic steel composite pipe joint that the utility model is designed, it comprises joint body, the inner wall sealing face of the attachment hole in the joint body becomes horn-like.It is characterized in that inwall becomes the attachment hole bottom of horn-like sealing surface to be provided with the sealed step of its width greater than the plastic steel pipe wall thickness.Inwall becomes the sealed step of the attachment hole bottom of horn-like sealing surface to be provided with the sealing caulking groove that can embed the plastic steel pipe wall thickness.Joint body is made of middle steel layer and both sides plastic layer.It is characterized in that being provided with electric fuse in the sealing surface in attachment hole.
The resulting a kind of plastic steel composite pipe joint of the utility model, owing to adopt horn-like respective outer side edges with pipeline, make it to become quite tight sealing configuration, sealing surface between the plastics of tubing body and pipe fitting body all closely is connected as one, the metallic material of tubing termination fracture face is one by tight coating of plastics, saved tubing tube head section end socket one, saved the man power and material, this plastic steel composite pipe joint, easy to connect, steel layer in the middle of can not exposing has prevented that pipeline is corroded and corrodes the leakage that the back produces, for the use of pipeline provides safer assurance.
Description of drawings
Fig. 1 is that attachment hole inner wall sealing face becomes horn-like structural representation;
Fig. 2 is the sealed step structural representation of bottom width greater than the plastic steel pipe wall thickness;
Fig. 3 is the plastic steel composite pipe joint structure schematic representation that the bottom is provided with the sealing caulking groove;
Fig. 4 is compound joint of plastic-steel and plastic steel composite pipe coupled condition structural representation;
Fig. 5 is the structural representation that sealing surface is provided with electric fuse.
Embodiment
The utility model will be further described in conjunction with the accompanying drawings below by embodiment, but following embodiment does not limit content of the present utility model.
As shown in Figure 1, a kind of plastic steel composite pipe joint that present embodiment is described, it comprises joint body 1,8 one-tenth in the inner wall sealing face of the attachment hole 4 in the joint body 1 is horn-like, for the sealing in improving pipe fitting and pipeline being connected, as Fig. 2, shown in Figure 3, inwall becomes attachment hole 4 bottoms of horn-like sealing surface 8 to be provided with the sealed step 2 of its width greater than the plastic steel pipe wall thickness, become at inwall on the sealed step 2 of attachment hole 4 bottoms of horn-like sealing surface 8 and be provided with the sealing caulking groove 3 that can embed plastic steel pipe 9 wall thickness, plastic steel pipe 9 built-in steel layers 10.
Embodiment 2
As shown in Figure 4, a kind of plastic steel composite pipe joint that present embodiment is described, joint body 1 is made of middle steel layer 5 and both sides plastic layer 6, for pipe fitting and pipeline after guaranteeing to connect can be connected as a single entity, can adopt electric smelting linkage structure as shown in Figure 5, promptly be provided with electric fuse 7 in the sealing surface in attachment hole 48.
Claims (6)
1, a kind of plastic steel composite pipe joint, it comprises joint body (1), it is characterized in that the inner wall sealing face (8) of the attachment hole (4) in the joint body (1) becomes horn-like.
2, a kind of plastic steel composite pipe joint according to claim 1 is characterized in that inwall becomes attachment hole (4) bottom of horn-like sealing surface (8) to be provided with the sealed step (2) of its width greater than the plastic steel pipe wall thickness.
3, a kind of plastic steel composite pipe joint according to claim 2 is characterized in that inwall becomes the sealed step (2) of attachment hole (4) bottom of horn-like sealing surface (8) to be provided with the sealing caulking groove (3) that can embed the plastic steel pipe wall thickness.
4,, it is characterized in that joint body (1) is made of middle steel layer (5) and both sides plastic layer (6) according to claim 1 or 2 or 3 described a kind of plastic steel composite pipe joints.
5, according to claim 1 or 2 or 3 described a kind of plastic steel composite pipe joints, it is characterized in that being provided with electric fuse (7) in the sealing surface (8) in attachment hole (4).
6, a kind of plastic steel composite pipe joint according to claim 4 is characterized in that being provided with electric fuse (7) in the sealing surface (8) in attachment hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420069562 CN2700683Y (en) | 2004-06-17 | 2004-06-17 | Plastic-steel composite pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420069562 CN2700683Y (en) | 2004-06-17 | 2004-06-17 | Plastic-steel composite pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700683Y true CN2700683Y (en) | 2005-05-18 |
Family
ID=34777879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420069562 Expired - Fee Related CN2700683Y (en) | 2004-06-17 | 2004-06-17 | Plastic-steel composite pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700683Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220063A (en) * | 2019-03-29 | 2019-09-10 | 上海瑞河企业集团有限公司 | One kind covering modeling metallic conduit double seal connecting structure |
-
2004
- 2004-06-17 CN CN 200420069562 patent/CN2700683Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220063A (en) * | 2019-03-29 | 2019-09-10 | 上海瑞河企业集团有限公司 | One kind covering modeling metallic conduit double seal connecting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |