CN2644847Y - Multiple tubes bell and spigout joint - Google Patents
Multiple tubes bell and spigout joint Download PDFInfo
- Publication number
- CN2644847Y CN2644847Y CN 03210662 CN03210662U CN2644847Y CN 2644847 Y CN2644847 Y CN 2644847Y CN 03210662 CN03210662 CN 03210662 CN 03210662 U CN03210662 U CN 03210662U CN 2644847 Y CN2644847 Y CN 2644847Y
- Authority
- CN
- China
- Prior art keywords
- joint
- composite pipe
- pipe fitting
- layer metal
- socket
- 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
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Abstract
The utility model relates to a connecting joint of a composite pipe in a water supply and discharge system, an air supply system, a heating power system, etc. The present joint has insufficient connection strength with the composite pipe, so the joint is easy to have a fuse tumor in the bearing and inserting process to make a bore diameter reduced or blocked, and the present joint has poor fusing effect and is sealed poorly for affecting use. The utility model comprises a plastic body and skin layer metal compounded on the plastic body and is characterized in that a bearing and inserting opening is arranged between the body and at least one common end of the skin layer metal, and the skin layer metal at the end corresponding to the bearing and inserting opening is provided with a tightening hoop part or a clamping position. The utility model has the technical proposal that bearing and inserting operation can be performed according to the prior art, and then the tightening hoop part is tightly embraced with an embracing hoop or the clamping position is clamped and fastened, so the connection strength of the joint and the composite pipe can be assured.
Description
[technical field]
The metal that the jointing that the utility model relates to a kind of composite pipe fitting is mainly used in systems such as plumbing, air feed, chemical industry, heating power is connected with the pipeline of plastic composite pipe.
[background technique]
The pipeline Placement of existing composite metal-plastic pipe generally is that screw thread FERRULETYPE or single metal outer are adhered, the pipe fitting cost height of these Placements, and join strength and poor reliability, the construction requirement height, efficient is low, complex process.For this reason, notification number is the technological scheme that the utility model patent of CN2503298Y and CN2567427Y discloses a kind of multiunit tube joint respectively: the former pipe fitting body is made of outer layer metal and plastic lining, the termination of the plastic lining of this pipe fitting one end is provided with the undergauge step and exceeds the outer layer metal certain-length, has constituted metal and plastic composite pipe joint jointly with metal collar independently.The latter comprises the pipe fitting body of mainly being made up of metal outer and plastic inner lining, also comprise at least one plastic inner pipe cover, one end of described plastic inner pipe cover matches with described plastic inner lining, the other end then stretches out certain distance from described plastic inner lining, the length of described metal outer is greater than the length of described plastic inner lining, the overlapping suitable distance of external part of its part that grows and described plastic inner pipe cover.Also there is following technological deficiency in these two kinds of technological schemes because of structural deficiency: the join strength deficiency of (1), joint and composite pipe: though composite pipe can be respectively plastic inner lining in two technological schemes fuse together, but connect for the ease of socket joint, the external diameter of composite pipe causes the outer layer metal of composite pipe and the join strength between collar or the joint outer layer metal to be difficult to guarantee usually less than the internal diameter of collar or joint outer layer metal; (2), in two technological schemes owing to all do not have bearing object in the plastic inner pipe of the plastic inner lining of joint and composite pipe, in the socket joint process, be easy to generate molten knurl, causes the aperture to dwindle or stops up, and the fusion effect is relatively poor, poor sealing, influence use.
[model utility content]
The technical assignment of the technical problems to be solved in the utility model and proposition is to overcome the above-mentioned defective that exists in the existing product, a kind of join strength height, good sealing effect is provided and guarantees the composite pipe fitting bell and spigot joint that pipeline is unimpeded.For this reason, the utility model is taked following technological scheme:
A kind of composite pipe fitting bell and spigot joint, comprise plastic body and the top layer metal that is compounded on the body, it is characterized in that having joint socket between at least one common ends of described body and top layer metal, this metal position corresponding with joint socket, end top layer is provided with the lock ring position or card is pressed the position.This technological scheme can be carried out socket joint according to the method for prior art, hold tightly with anchor ear in lock ring portion afterwards, or it is solid to press the position card to compress at card, can guarantee the join strength of joint and composite pipe.
Described composite pipe fitting bell and spigot joint is characterized in that described body is built-in with lining with the endoporus of the corresponding end of described joint socket.This lining has supporting role to joint and the composite pipe that has carried out sweat soldering when socket joint, effectively prevent to produce molten knurl in the socket joint process, keep the aperture constant, guarantee that pipeline is unimpeded, and can guarantee the fusion quality of composite pipe and joint, strengthen join strength and sealing effect.
Described composite pipe fitting bell and spigot joint is characterized in that the described plastic body outside has step, and described joint socket is formed by the annular gap between top layer metal and body corresponding with this step.Step wherein can position composite pipe.
Described composite pipe fitting bell and spigot joint is characterized in that the inner of described lining is positioned at the inner inboard of joint socket, and its outer end extends outside the plastic body.Excellent support with a plastic inner lining that achieves a butt joint.
Described composite pipe fitting bell and spigot joint is characterized in that on the described plastic body being provided with tapering with the outer wall of joint socket corresponding part.Be convenient to firm grafting.
Described composite pipe fitting bell and spigot joint is characterized in that described lock ring position is the inner concave shape annular groove.
The utility model is by being provided with joint socket between at least one common ends of joint body and top layer metal, be used for the socket joint composite pipe, be provided with the lock ring position at this metal position corresponding, end top layer with joint socket, can carry out socket joint according to the method for prior art, hold tightly with anchor ear or block in lock ring portion afterwards and compress admittedly, can guarantee the join strength of joint and composite pipe; And be built-in with lining with the endoporus of the corresponding end of its joint socket at joint body, the generation of molten knurl in the time of can effectively preventing socket joint keeps the aperture constant, guarantees that pipeline is unimpeded, and can guarantee the fusion quality of composite pipe and joint, strengthen join strength and sealing effect.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a coupled condition schematic representation of the present utility model.
[embodiment]
As shown in Figure 1, the agent structure of this composite pipe fitting bell and spigot joint is plastic body 1 and top layer stainless steel 2 to be injection-moulded in together form, and at plastic body 1 right-hand member arranged outside step 3, thereby be joint socket 4 at the annular gap that between top layer metal and body, forms corresponding with this step; And with tapering is set on plastic body 1 outer wall of joint socket 4 corresponding parts and is built-in with stainless steel lining 6 at the endoporus of this end, it is inner inboard that the inner of this lining 6 is positioned at joint socket, its outer end extends outside the plastic body; This metal position corresponding with joint socket, end top layer is provided with inner concave shape annular groove 5 and compresses maintenance as lock ring position or card and put.
When socket joint connects, there are an end of joint socket and the end of composite pipe to carry out hot melt simultaneously joint, thereafter speed is inserted composite pipe 7 in the joint socket 4, after cooling, can make the plastic inner pipe of composite pipe and the plastic body of joint be solidified into one, then in interior concave ring groove, install anchor ear 8 additional, under the tightening force effect of anchor ear, with the top layer metallic material chucking of joint, also tighten the outer wall of composite pipe thereupon, strengthened connection power.Because of being subjected to the supporting role of stainless steel inner lining cover 6, guaranteed the welding quality between joint and the plastic tube therebetween, sealing effect is good, avoids producing molten knurl.Obviously, adopting other composite pipe is that plastics, mesosphere are the structure of metallic material such as internal and external layer, can utilize said structure to strengthen join strength and sealing effect equally.
Be suitable for the joint in the above-mentioned linkage structure, can be that reducing is straight-through, threeway or four-way, also can be directly, 45 ° of elbows, 90 ° of elbows, one end, two ends or the multiterminal of joint all can adopt this linkage structure, also can make outside thread, internal thread or flange arrangement as required, under technical clarification of the present utility model,, can be the combination in any of described structural type in conjunction with prior art routine techniques means.
Claims (6)
1, a kind of composite pipe fitting bell and spigot joint, comprise plastic body (1) and be compounded in top layer metal (2) on the body, it is characterized in that having joint socket (4) between at least one common ends of described body (1) and top layer metal (2), this metal position corresponding with joint socket, end top layer is provided with lock ring position (5).
2, composite pipe fitting bell and spigot joint according to claim 1 is characterized in that described body (1) is built-in with lining (6) with the endoporus of the corresponding end of described joint socket (4).
3, composite pipe fitting bell and spigot joint according to claim 1 is characterized in that described plastic body (1) outside has step (3), and described joint socket (4) is formed by the annular gap between top layer metal and body corresponding with this step.
4, composite pipe fitting bell and spigot joint according to claim 1 is characterized in that the inner of described lining (6) is positioned at the inner inboard of joint socket (3), and its outer end extends outside the plastic body (1).
5, composite pipe fitting bell and spigot joint according to claim 1 is characterized in that described plastic body (1) is gone up and the outer wall of joint socket (4) corresponding part is provided with tapering.
6, composite pipe fitting bell and spigot joint according to claim 1 is characterized in that described lock ring position (5) is the inner concave shape annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210662 CN2644847Y (en) | 2003-09-12 | 2003-09-12 | Multiple tubes bell and spigout joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03210662 CN2644847Y (en) | 2003-09-12 | 2003-09-12 | Multiple tubes bell and spigout joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2644847Y true CN2644847Y (en) | 2004-09-29 |
Family
ID=34289456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03210662 Expired - Fee Related CN2644847Y (en) | 2003-09-12 | 2003-09-12 | Multiple tubes bell and spigout joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2644847Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419326C (en) * | 2006-06-15 | 2008-09-17 | 佛山市日丰企业有限公司 | Socket pipe piece of heat melted connection |
-
2003
- 2003-09-12 CN CN 03210662 patent/CN2644847Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419326C (en) * | 2006-06-15 | 2008-09-17 | 佛山市日丰企业有限公司 | Socket pipe piece of heat melted connection |
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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 |