CN203413269U - Slide tensioning type pipe fitting for flexible pipe - Google Patents
Slide tensioning type pipe fitting for flexible pipe Download PDFInfo
- Publication number
- CN203413269U CN203413269U CN201320483726.6U CN201320483726U CN203413269U CN 203413269 U CN203413269 U CN 203413269U CN 201320483726 U CN201320483726 U CN 201320483726U CN 203413269 U CN203413269 U CN 203413269U
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- pipe
- pipe fitting
- flexible pipe
- seal ring
- inner support
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Abstract
The utility model relates to a slide tensioning type pipe fitting for a flexible pipe. The pipe fitting comprises a pipe fitting main body provided with at least one pipe inner support at one end, and a sliding tensioning cutting sleeve which is in a circular structure and is matched with the pipe inner support, wherein more than two element rests are arranged in external diameter of the pipe inner support; a circular seal ring is arranged in outer diameter of the pipe fitting main body and located between the member rests; the sliding tensioning cutting sleeve installed is fixed on a cold expanding port part of a polyethylene-aluminum composite pipeline, and the seal ring is contacted with the inner wall of the polyethylene-aluminum composite pipeline. Compared with existing pipe fittings, by adopting the seal ring technology, the defect of insufficient memorability of plastic of part of the flexible pipe is compensated in installation of the slide tensioning type pipe fitting, the amount of compression in the structure is increased, and the leakproofness is enhanced, and meanwhile, the pipe fitting is further applicable to various tubular products.
Description
Technical field
The invention relates to building pipe field, is specifically related to sliding compact form connection pipe fitting for a kind of flexible pipe.
Background technique
Along with the development of building pipe technology, flexible pipe is convenient with its production and transport, construction flexibly, the advantage such as application is extensive, installation cost is low, becomes market mainstream tubing gradually.The flexible pipe of main flow has aluminium-plastic composite pipe, PE-X pipe, PE-RT pipe, PB pipe, PPR pipe etc. at present.The Placement of such tubing is numerous, have tongs press type to connect, typical prior art as notice of authorization number be < < plastic-aluminum combined effective clipper type plastic pipe fitting > > of CN2510708Y; Hot melt connects, as the plug in structure > > of the < < heat molten type pipe connector of notification number CN202203579U and PPR pipe; Sliding compact form connects, as the linkage structure > > of the < < plastic tube of CN2620158Y.Above-mentioned pipe fitting is only applicable to several money tubing on flexible pipe connects, and versatility is limited to, and connects different tubing and need to adopt conversion adapter to realize, and this has brought inconvenience to installation.
The sliding tight type pipe fitting of prior art is in pipeline connection area, is to be more applied on pure plastic pipe as PE-X pipe PE-RT pipe, PB pipe etc.; Aluminium-plastic pipe plastic layer sealing is poor, adopts the sliding compact form tubing coupling of tradition to require high, and the tubing of different brands differs because of size Control, cannot be general; In addition, harsh to pipeline installation requirement, installer easily reveals the in the situation that of installation lack of standardization.
Summary of the invention
The defect that the utility model exists with sliding tight type pipe fitting for existing flexible pipe, a kind of safer structure is provided, this structure has been relaxed pipe fitting, the production of tubing and the requirement of selecting, conformability significantly improves, strengthened the sealability that pipe fitting connects, more practical and exploitativeness in structure.
For achieving the above object, the utility model is by the following technical solutions:
With a sliding tight type pipe fitting, comprise that one has the main pipe body of one end pipe inner support at least, pipe inner support external diameter is provided with 2 above convex tendons; With the sliding tight cutting ferrule of the supporting loop configuration of pipe inner support, at the pipe inner support external diameter of main pipe body, be provided with annular seal ring, seal ring is between convex tendon; Sliding tight cutting ferrule is fixed on flexible pipe through cold expansion port section after installing, and seal ring contacts with the inwall of flexible pipe.
The technological scheme that the utility model can also adopt:
Described flexible pipe comprises composite metal-plastic pipe.
Described flexible pipe comprises can hot melt tubing.
Described seal ring is held between two convex tendons, and external diameter is not higher than fin height.
Described seal ring is an O shape circle.
In pipe inner support external diameter bottom, one seal washer is installed.
Above-mentioned convex tendon is except article one muscle is square muscle, and all the other are circular arc muscle.
Above-mentioned convex tendon is except article one muscle is trapezoidal muscle, and all the other are circular arc muscle.
Above-mentioned convex tendon is square muscle.
Sliding tight type pipe fitting for flexible pipe of the present utility model, by increase seal ring between convex tendon, increased the decrement between pipe fitting and tubing, make up the defect of prior art sealing place Memorability deficiency, can realize again seal ring can not walk in sliding tight process, especially under pipeline hot and cold water applied environment, greatly improve the reliability of sealing.This structure is adjusted little to whole pipe fitting, practicability is higher, and it is convenient to implement.
Accompanying drawing explanation
The embodiment one of Fig. 1, the invention is broken section structural representation in application;
Embodiment's two agent structure cross-sectional schematic of Fig. 2, the invention;
Embodiment's three agent structure cross-sectional schematic of Fig. 3, the invention;
Embodiment's four agent structure cross-sectional schematic of Fig. 4, the invention.
Embodiment
With reference to the accompanying drawings flexible pipe of the present utility model is described further with sliding tight type pipe fitting preferred embodiment.
As shown in Figure 1, this embodiment's one flexible pipe is that first-class footpath is direct with sliding tight type pipe fitting, comprises a main pipe body 1, and main pipe body 1 has 2 end pipe inner support 10 parts.Pipe inner support 10 external diameters arrange 4 convex tendons 11, realize connecting convex tendon 11 and must having more than 2, convex tendon 11 except article one muscle 12 be square muscle, the individual circular arc muscle 13 that is of its excess-three.Have one with the tight cutting ferrule 2 of cunning of the supporting loop configuration of pipe inner support 10, on sliding tight cutting ferrule 2, be provided with the draw-in groove 20 of an anti-retrogression, the internal diameter port that sliding tight cutting ferrule 2 slides into one end along pipe is provided with chamfering 21.At the seal ring 3 that has an annular between convex tendon 11, be assemblied in pipe inner support 10.The present embodiment connects sliding tight type pipe fitting for aluminium-plastic pipe, in the bottom of pipe inner support 10, also has a gasket seal 5, for aluminium lamination 41 and the main pipe body 1 of insulating plastic-aluminum pipe 4.In connection procedure, first the tight cutting ferrule 2 of cunning is inserted in to aluminium-plastic pipe 4, then the port of aluminium-plastic pipe 4 is carried out to cold expansion, again the pipe inner support 10 of main pipe body 1 is inserted in through cold expansion port section 40, with special tool, sliding tight cutting ferrule 2 is slided into the bottom of main pipe body 1, sliding tight rear middle seal ring 3 contacts with aluminium-plastic pipe 4 inwalls, plays further seal action.
The cross section structure of above-mentioned seal ring 2 is rectangle, by self spring-back force or viscose, is fixed in the groove 14 between convex tendon 10.For displacement in the tight motion of anti-on-slip, seal ring 2 external diameter height are not higher than the height of convex tendon 10.Seal ring 2 also can be molded in pipe inner support 10 by Shooting Technique, and its resist displacement performance is better.
Flexible pipe can not only be for composite metal-plastic pipes such as aluminium-plastic composite pipe 4, Copper-plastic Composite Pipes with sliding tight type pipe fitting, can also be for flexible pipes such as glass fiber plastic composite pipe, resistance oxygen multi-layered composite pipes; Also be applicable in addition the tubing that PB, PR-RT, PPR etc. can hot melts.
Fig. 2 is second embodiment of the invention, and main pipe body 1 is the direct body of an outside thread, has one end pipe inner support 10 parts, and the convex tendon 11 of main pipe body 1 is 3, and article one muscle 12 is up-narrow and down-wide trapezoidal muscle, and all the other 2 is circular arc muscle 13.The groove 16 that has a placement O shape circle 15 in the middle of circular arc muscle 13, O shape circle 15 is not higher than the height of circular arc muscle 13.O shape circle 15 is arranged in pipe inner support 10, also can be molded in pipe inner support by Shooting Technique.
Convex tendon in pipe inner support 10 is square muscle, does not affect it effect is installed under corresponding kit is used.
The sliding tight type pipe fitting of plastic-aluminum pipe of the present embodiment three, as shown in Figure 3, the pipe inner support 10 of main pipe body 1 has 4 semicircular convex tendons 11.Between article one muscle 12 and outmost muscle, by impregnation, form the annular seal ring 3 of a parcel external diameter, the material of seal ring 3 is PVC, can be also other sealing materials such as silica gel, rubber.Seal ring 3 also can soak the part position of moulding between convex tendon 11, between article one muscle 12 and second.
Embodiment four is similar with above-mentioned several embodiments, as shown in Figure 4, in pipe inner support 10, there are three convex tendons 11, the non-semi-circular structure of convex tendon 11, but adopted a convex tendon with tapering, and two other is annular seal ring 3, seal ring 3 cross sections are substantially triangular in shape, be arranged in the groove 16 of pipe inner support 10 external diameters, all between two convex tendons 11.
Flexible pipe of the present utility model is compared with the pipe fitting in existing this field with sliding tight type pipe fitting, adopt seal ring to make to make up in pipe fitting installation the defect of aluminium-plastic pipe Memorability deficiency, increased the decrement in pipe fitting joint structure, strengthen the sealing of pipe fitting, relaxed the requirement in size of pipe and tubing, this structure practicability is high, and it is convenient to implement on the basis of existing technology.
Claims (9)
1. a sliding tight type pipe fitting for flexible pipe, comprises that one has the main pipe body (1) of one end pipe inner support (10) at least, and pipe inner support (10) external diameter is provided with 2 above convex tendons (11); Slide tight cutting ferrule (2) with the loop configuration that pipe inner support (10) is supporting, it is characterized in that: pipe inner support (10) external diameter in main pipe body (1) is provided with annular seal ring (3), and seal ring (3) is positioned between convex tendon (11); Sliding tight cutting ferrule (2) is fixed on flexible pipe (4) through cold expansion port section (40) after installing, and seal ring (3) contacts with the inwall of flexible pipe (4).
2. sliding tight type pipe fitting for a kind of flexible pipe according to claim 1, is characterized in that: described flexible pipe comprises composite metal-plastic pipe.
3. sliding tight type pipe fitting for a kind of flexible pipe according to claim 1, is characterized in that: described flexible pipe comprises can hot melt tubing.
4. sliding tight type pipe fitting for a kind of flexible pipe according to claim 1, is characterized in that: described seal ring (3) is held between two convex tendons (11), and external diameter is not higher than fin height.
5. sliding tight type pipe fitting for a kind of flexible pipe according to claim 1, is characterized in that: described seal ring (3) is an O shape circle (13).
6. according to arbitrary described a kind of flexible pipe in claim 1 to 5, with sliding tight type pipe fitting, it is characterized in that: in pipe inner support (10) external diameter bottom, one seal washer (5) is installed.
7. according to arbitrary described a kind of flexible pipe in claim 1 or 5, with sliding tight type pipe fitting, it is characterized in that: described convex tendon (11) is except article one muscle (12) is for square muscle, and all the other are circular arc muscle (13).
8. according to arbitrary described a kind of flexible pipe in claim 1 or 5, with sliding tight type pipe fitting, it is characterized in that: described convex tendon (11) is except article one muscle (12) is for trapezoidal muscle, and all the other are circular arc muscle (13).
9. according to arbitrary described a kind of flexible pipe in claim 1 or 5, with sliding tight type pipe fitting, it is characterized in that: described convex tendon is square muscle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483726.6U CN203413269U (en) | 2013-08-06 | 2013-08-06 | Slide tensioning type pipe fitting for flexible pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483726.6U CN203413269U (en) | 2013-08-06 | 2013-08-06 | Slide tensioning type pipe fitting for flexible pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203413269U true CN203413269U (en) | 2014-01-29 |
Family
ID=49976157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483726.6U Expired - Lifetime CN203413269U (en) | 2013-08-06 | 2013-08-06 | Slide tensioning type pipe fitting for flexible pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203413269U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594465A (en) * | 2021-01-06 | 2021-04-02 | 台州半城暖通科技有限公司 | Clamp pressing pipe fitting for polyethylene flexible pipe |
-
2013
- 2013-08-06 CN CN201320483726.6U patent/CN203413269U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594465A (en) * | 2021-01-06 | 2021-04-02 | 台州半城暖通科技有限公司 | Clamp pressing pipe fitting for polyethylene flexible pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Huang Xiaofeng Document name: Notice of Termination of Patent Rights |
|
| DD01 | Delivery of document by public notice |