CN1093237C

CN1093237C - Pipe joint

Info

Publication number: CN1093237C
Application number: CN97117919A
Authority: CN
Inventors: 鲁道夫·齐默列
Original assignee: Nueva AG
Current assignee: Nueva AG
Priority date: 1997-05-22
Filing date: 1997-09-02
Publication date: 2002-10-23
Anticipated expiration: 2017-09-02
Also published as: AU744564B2; CN1420299A; AR007748A1; CH692429A5; CN1200449A; MX9707711A; ID20338A; AR040528A2; KR19980086377A; NZ329306A; PE93498A1; HN1997000105A; IL121675A0; CO4600646A1; ZA9710594B; CN1210515C; AR040530A2; IL121675A; CR5592A; SV1997000095A

Abstract

A pipe coupling for connecting two pipe ends (1, 2) together, which, in addition to a coupling sleeve (3), has end cap rings (4, 5) which can grip the pipe ends, the circumferential surfaces of the end cap rings facing the coupling sleeve being provided with sealing and clamping rings (4 ', 5'), which, in the assembled state, are clamped on one side between the pipe (1, 2) and the coupling sleeve (3) and on the other side on the pipe ends. The pipe connection thus formed has sufficient leak-proof properties and is stable.

Description

Pipe joint

Invention field

The present invention relates to a kind of pipe joint that is used for the pipe that is wound in from double-walled profile plastic tape, this pipe joint has a joints sleeve that is suitable for being put into institute's connecting leg end.

Background technique

To be used for the above-mentioned the sort of pipe joint that two pipe ends connect together all be known technology and can be divided into according to the diversity of interconnection technique and to use bolted flange, bindings such as press fit.

With regard to the pipe that constitutes by double-walled dough model strip, other problem also appears except linking: cut to certain-length, and there is ora terminalis to be the half-open shape that partly closes perpendicular to the pipe end of pipe longitudinal axis, because when cutting to certain size, unavoidably make the double-walled profile also be cut open (because the shape extension in the shape of a spiral of the relative tube's axis of double-walled profile band), the ora terminalis of this pipe is handled very complicated and its result is always dissatisfied, and untreated pipe end can cause injured danger.

Untreated pipe end has following shortcoming:

-be difficult to even can not load onto joints sleeve (to having the periphery of thick walled tube, always chamfering being arranged for this purpose) in outer radius;

-it can make liquid be penetrated into the inner chamber of profile band;

-when transportation or assembling, pipe end is not protected;

Summary of the invention

The pipe that does not bear pressure when the objective of the invention is specially for work provides a pipe joint, this pipe joint simplicity of design, and assembling easily guarantees enough anti-leakages and does not need to handle just to make the pipe end that connects together reach stable pipe binding.

For this reason, the invention provides a kind of pipe joint of the pipe that is wound in double-walled profile plastic tape, it has a joints sleeve that is suitable for being placed on institute's connecting leg pipe end, it is characterized in that: have two respectively to be suitable for being clamped in institute's connecting leg and to cut to certain-length and perpendicular to the end cap circle of the pipe end of pipe longitudinal axis, this end cap circle has a U-shaped cross section and is suitable for round the pipe end of each pipe chucking, and the end cap circle comprises that at least one extends and be suitable for the contacted sealing of institute's attaching headgear and clamp rib along side face on the pipe end being suitable for being placed on the side face of joints sleeve direction.

Particularly joint is with a vertical intermediate portion, the flexible curved tube of a picture of its similar bellows.

Particularly the end cap circle is that strip by a U-shaped cross section is constituted and cuts into certain-length according to the caliber size.

Particularly each end cap circle comprises a plurality of sealing and clamping rings that extend along side face.

Sealing and clamping ring are particularly arranged on the interior and outer circumferential face of end cap circle.

Sealing and clamping ring that a plurality of adjacent relative extension indentions are particularly arranged.

Particularly this tubular joint is made up of plastics or rubber.

When the pipe joint of structure of the present invention is particularly suitable for the elbow that the joints sleeve design of the phase place (time) constitutes pipe.

To brief description of drawings

The parts of Fig. 1 for being constituted according to the present invention are by the sectional view of pipe joint (first half of pipe);

Fig. 2 is the sectional view by the modification design of end cap circle;

Detailed description of the preferred embodiment

As shown in Figure 1, pipe 1 and pipe 2 are all twined by double-walled profile plastic tape and constitute and connect together (tube chamber can be quite big or wall thickness can be quite little).

By known and to be arranged on institute's connecting leg end preferably 2 the same with pipe 1 pipe, the joints sleeve that is made of plastics (3) is implemented to connect or butt joint, the intermediate portion of this pipe joint the wall 3 of vertically seeing a corrugated tube shape ', so be particularly suitable on pipeline constituting the elbow of a slyness.

Because under the situation of the less pipeline of pressure, also require to have enough sealings, therefore in known pipe joint, be inserted with the rubber seal of different shape.

In the solution of the present invention; the end cap circle 45 that can be clamped at pipe 1 and pipe 2 ends slides on the end of pipe 1,2; thereby this end cap circle with the profile of its U-shaped hold pipe end 1 and 2 and embrace pipe end form a protection (sharp edge is to be formed along transversely cutting by pipe 1,2) to pipe ora terminalis sharp edge thus web and cavity also be cut open, this not only produces injured danger but also constitutes obstacle to liquid stream flow process when carrying.

On the circumferential surface of joints sleeve 3, comprise separately at least one or many sealings and clamp rib 4 ' and 5 ', they are contacted by joints sleeve 3 respectively under the sealing assembling condition.

In an illustrated embodiment, the inner peripheral surface of this

end cap circle

4,5 also comprises the sealing that side face extends and clamps rib 4 " and 5 ", in theory, owing to there is this clamping rib 4 ", 5 " also can make joints sleeve 3 be inserted into the inner space of pipe end.

Yet joints sleeve 3 operated by rotary motion are in pipe 1 and 2 the outside, and

end cap circle

4 and 5 includes rib 4 ' with 5 ' just enough on its outer circumferential face like this.

End cap circle

4,5 can also be designed to suitable closed loop, maybe can form (diameter that this depends on pipe) and is set on the pipe end with this kind form from the cutting of the profile band of U-shaped.

Fig. 2 illustrates the profile sectional view of the end cap circle 4 of a remodeling, on long outer circumferential face, be provided with separately rib 4 '.

Claims

1. the pipe joint of a pipe that is wound in double-walled profile plastic tape, it has a joints sleeve that is suitable for being placed on institute's connecting leg pipe end, it is characterized in that: have two respectively to be suitable for being clamped in institute's connecting leg and to cut to certain-length and perpendicular to the end cap circle of the pipe end of pipe longitudinal axis, this end cap circle has a U-shaped cross section and is suitable for round the pipe end of each pipe chucking, and the end cap circle comprises that at least one extends and be suitable for the contacted sealing of institute's attaching headgear and clamp rib along side face on the pipe end being suitable for being placed on the side face of joints sleeve direction.

2. pipe joint as claimed in claim 1 is characterized in that: joint is with a vertical intermediate portion, the flexible curved tube of a picture of its similar bellows.

3. pipe joint as claimed in claim 1 or 2 is characterized in that: the end cap circle is that the strip by a U-shaped cross section is constituted and cuts into certain-length according to the caliber size.

4. pipe joint as claimed in claim 1 or 2 is characterized in that: each end cap circle comprises a plurality of sealing and clamping rings that extend along side face.

5. pipe joint as claimed in claim 1 or 2 is characterized in that: sealing and clamping ring are arranged on the interior and outer circumferential face of end cap circle.

6. pipe joint as claimed in claim 1 or 2 is characterized in that: sealing and clamping ring that a plurality of adjacent relative extension indentions are arranged.

7. pipe joint as claimed in claim 1 or 2 is characterized in that: this tubular joint is made up of plastics or rubber.

8. pipe joint as claimed in claim 3 is characterized in that: each end cap circle comprises a plurality of sealing and clamping rings that extend along side face.

9. pipe joint as claimed in claim 3 is characterized in that: sealing and clamping ring are arranged on the interior and outer circumferential face of end cap circle.

10. pipe joint as claimed in claim 4 is characterized in that: sealing and clamping ring are arranged on the interior and outer circumferential face of end cap circle.

11. pipe joint as claimed in claim 3 is characterized in that: sealing and clamping ring that a plurality of adjacent relative extension indentions are arranged.

12. pipe joint as claimed in claim 4 is characterized in that: sealing and clamping ring that a plurality of adjacent relative extension indentions are arranged.

13. pipe joint as claimed in claim 5 is characterized in that: sealing and clamping ring that a plurality of adjacent relative extension indentions are arranged.

14. pipe joint as claimed in claim 3 is characterized in that: this tubular joint is made up of plastics or rubber.

15. pipe joint as claimed in claim 4 is characterized in that: this tubular joint is made up of plastics or rubber.

16. pipe joint as claimed in claim 5 is characterized in that: this tubular joint is made up of plastics or rubber.

17. pipe joint as claimed in claim 6 is characterized in that: this tubular joint is made up of plastics or rubber.