CN103115205A - Sliding-compact-type pipe fitting for aluminum-plastic pipe - Google Patents
Sliding-compact-type pipe fitting for aluminum-plastic pipe Download PDFInfo
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- CN103115205A CN103115205A CN2013100453952A CN201310045395A CN103115205A CN 103115205 A CN103115205 A CN 103115205A CN 2013100453952 A CN2013100453952 A CN 2013100453952A CN 201310045395 A CN201310045395 A CN 201310045395A CN 103115205 A CN103115205 A CN 103115205A
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Abstract
The invention relates to a connection pipe structure of an aluminum-plastic pipe, in particular to a sliding-compact-type pipe fitting for an aluminum-plastic pipe. The sliding-compact-type pipe fitting for the aluminum-plastic pipe comprises a pipe fitting body provided with at least an end inner support and a sliding-tight clamping sleeve which is in a ring-shaped structure and matched with the pipe inner support, wherein more than two protruding ribs are arranged on the external diameter of the pipe inner support. A ring-shaped structure matched with the pipe inner support is sleeved in a sliding-compact and clamping mode. At, a ring-shaped sealing ring is arranged on the external diameter of the pipe inner support of the pipe fitting main body and located among the protruding ribs. A chamfer is arranged in an end port of the inner diameter of one end where the sliding-tight clamping sleeve slides in. The sliding-tight clamping sleeve is arranged and then fixed on a cold expansion port part where the aluminum-plastic pipe passes. The sealing ring is contacted with the inner wall of the aluminum-plastic pipe. Compared with an existing pipe fitting, the sliding-compact-type pipe fitting for the aluminum-plastic pipe applies a sealing ring technology, the defect that the aluminum-plastic pipe is not good in memory in sliding-compact pipe fitting installation is remedied, amount of compression in the structure is increased, sealing performance is strengthened, and requirement of size is widened.
Description
Technical field
The invention relates to the pipeline connection area, is specifically related to the connection pipe fitting structure of aluminium-plastic pipe.
Background technique
Aluminium-plastic pipe is widely used in building water supply, heating field.At present aluminium-plastic pipe state inner connection mode has the screw thread check ring joint structure, is CN2499672Y " a kind of aluminium plastic composite pipeline joint " as authorizing publication number; Pincers are pressed linkage structure, number be CN2510708Y " a kind of plastic-aluminum combined effective clipper type plastic pipe fitting " as notice of authorization, and novel sliding stressed joint structure, and taking charge of notice of authorization as me number is CN101430035 " sliding type aluminium plastic composite pipe fittings ".In sliding stressed joint pipe fitting connection procedure, first the cutting ferrule with annular is inserted in aluminium-plastic pipe, then with professional tool expansion aluminium-plastic pipe port, in order to insert pipe fitting, pushes away near cutting ferrule and pipe fitting until offset with special tool at last, completes connection.Sliding stressed joint sealing is by the Memorability of plastics on aluminium-plastic pipe and realizes with the pipe fitting tolerance fit.Sliding tight type pipe fitting is connected with the screw thread snap ring be connected presses connection to compare, and has a pipeline connection latus rectum large, does not damage tubing, connects the advantages such as quick.
Sliding tight type pipe fitting is in the pipeline connection area, more to be applied on pure plastic pipe, as " linkage structure of plastic tube " of CN2620158Y, GB/T22051-2008 " the cold expansion formula of the tight cutting ferrule of the effective cunning of crosslinked polyethylene (PE-X) pipe fitting " NBS has also been described a wherein structure.Sliding tight type pipe fitting linkage structure can be used for PE-X (crosslinked polyethylene) pipe, PE-RT pipe, PB pipe etc., pure plastic pipe has larger plastics Memorability than aluminium-plastic pipe, and stressed even, therefore not high to size tolerance requirements, installer's competency profiling of pipe fitting.There is aluminium lamination in the aluminium-plastic pipe mesosphere, have part metals pipe characteristic, and the discontinuity of tubing layer causes pipe performance and pure plastic pipe to differ larger, aluminium-plastic pipe plastic layer wall thickness is little, sliding sigma compactness energy and anti-pulling performance are different from the pipe fitting of pure plastic pipe, equally also cause pipe fitting to have larger difference.
Existing sliding type aluminium plastic composite pipe fittings, poor because of pipe memory, there is not again high-efficiency seal structure, size Control is strict on making, and cost is high; On the other hand, the coupling of tubing is required high, the tubing of different brands differs because of size Control, can't be general; In addition, harsh to the pipeline installation requirement, the installer in the situation that installation lack of standardization easily reveal.
Summary of the invention
The present invention is directed to the defective that the sliding tight type pipe fitting of existing plastic-aluminum pipe exists, a kind of safer structure is provided, and this structure has been relaxed pipe fitting, the production of tubing and the requirement of selecting, and conformability significantly improves, strengthened the sealability that pipe fitting connects, more practical and exploitativeness on structure.
For achieving the above object, the present invention is by the following technical solutions:
The sliding tight type pipe fitting of a kind of plastic-aluminum pipe comprises that one has the main pipe body of an end pipe inner support at least, and pipe inner support external diameter is provided with the convex tendon more than 2; Slide tight cutting ferrule with the loop configuration that the pipe inner support is supporting, be provided with the seal ring of annular at the pipe inner support external diameter of sliding tight type pipe fitting, seal ring is between convex tendon; Sliding tight cutting ferrule slides into an end internal diameter port and is provided with chamfering; Be fixed on aluminium-plastic pipe through cold expansion port section after sliding tight cutting ferrule is installed, seal ring contacts with the inwall of aluminium-plastic pipe.
The technological scheme that the present invention can also adopt:
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.
Described seal ring is molded on the pipe inner support by Shooting Technique.
Described seal ring is molded on the pipe inner support by impregnation.
Describedly in pipe inner support external diameter bottom, one seal washer is installed.
Described convex tendon is except article one muscle is square muscle, and all the other are the circular arc muscle.
Described convex tendon is except article one muscle is trapezoidal muscle, and all the other are the circular arc muscle.
The sliding tight type pipe fitting of plastic-aluminum pipe of the present invention, by increase seal ring between convex tendon, increased the decrement between pipe fitting and tubing, make up the defective of prior art Memorability deficiency, can realize that again seal ring can not walk in sliding tight process, especially under pipeline hot and cold water alternate environment, the reliability of sealing improves.This structure is adjusted little to whole pipe fitting, practicability is higher, and it is convenient to implement.
Description of drawings
The embodiment one of Fig. 1, the invention is the broken section structural representation on using;
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 the sliding tight type pipe fitting preferred embodiment of plastic-aluminum pipe of the present invention is described further.
As shown in Figure 1, the sliding tight type pipe fitting of this embodiment's one plastic-aluminum pipe is that first-class footpath is direct, 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, and realizing connecting convex tendon 11 must have more than 2, and convex tendon 11 is square muscle except article one muscle 12, 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, be provided with the draw-in groove 20 of an anti-retrogression on sliding tight cutting ferrule 2, sliding tight cutting ferrule 2 is provided with chamfering 21 along the internal diameter port that pipe slides into an end.Be assemblied on pipe inner support 10 at the seal ring 3 that an annular is arranged between convex tendon 11.Bottom in pipe inner support 10 also has a gasket seal 5, is used for the aluminium lamination 41 and main pipe body 1 of insulating plastic-aluminum pipe 4.In connection procedure, first will slide tight cutting ferrule 2 and be inserted in aluminium-plastic pipe 4, then the port of aluminium-plastic pipe 4 carried out cold expansion, again the pipe inner support 10 of main pipe body 1 is inserted in through cold expansion port section 40, to slide with special tool the bottom that tight cutting ferrule 2 slides into 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, is fixed in groove 14 between convex tendon 10 by self spring-back force or viscose.Be 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 on pipe inner support 10 by Shooting Technique, and its resist displacement performance is better.
Fig. 2 is second embodiment of the invention, and main pipe body 1 is a direct body of outside thread, and end pipe inner support 10 parts are arranged, 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.One groove 16 of placing O shape circle 15 is arranged in the middle of circular arc muscle 13, and O shape circle 15 is not higher than the height of circular arc muscle 13.O shape circle 15 is arranged on pipe inner support 10, also can be molded on the pipe inner support by Shooting Technique.
The sliding tight type pipe fitting of the 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, form the seal ring 3 of the annular of a parcel external diameter by impregnation, 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, on pipe inner support 10, three convex tendons 11 are arranged, the non-semi-circular structure of convex tendon 11, but adopted a convex tendon with tapering, and two other is the seal ring 3 of annular, 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.Seal ring 3 can adopt the sealed materials such as EPDM, NBR, silicone rubber, also can adopt the compound compressed Fiber Materials.
The sliding tight type pipe fitting of plastic-aluminum pipe of the present invention is compared with the pipe fitting in existing this field, use seal ring and make the defective that makes up aluminium-plastic pipe Memorability deficiency in the pipe fitting installation, increased the decrement in the pipe fitting joint structure, strengthen the sealing of pipe fitting, relaxed the requirement on size of pipe and tubing, this structure practicability is high, and it is convenient to implement on existing basis.
Claims (9)
1. the sliding tight type pipe fitting of plastic-aluminum pipe, comprise that one has the main pipe body (1) of an end pipe inner support (10) at least, and pipe inner support (10) external diameter is provided with the convex tendon (11) more than 2; Slide tight cutting ferrule (2) with the loop configuration that pipe inner support (10) is supporting, it is characterized in that: be provided with the seal ring (3) of annular at pipe inner support (10) external diameter of main pipe body (1), seal ring (3) is positioned between convex tendon (11); Sliding tight cutting ferrule (2) slides into an end internal diameter port and is provided with chamfering (21); Sliding tight cutting ferrule (2) is fixed on aluminium-plastic pipe (4) through cold expansion port section (40) after installing, and seal ring (3) contacts with the inwall of aluminium-plastic pipe (4).
2. plastic-aluminum pipe according to claim 1 is slided tight type pipe fitting, and it is characterized in that: described seal ring (3) is held between two convex tendons (11), and external diameter is not higher than fin height.
3. plastic-aluminum pipe according to claim 1 is slided tight type pipe fitting, it is characterized in that: described seal ring (3) is an O shape circle (13).
4. plastic-aluminum pipe according to claim 1 is slided tight type pipe fitting, it is characterized in that: described seal ring (3) is molded on pipe inner support (10) by Shooting Technique.
5. plastic-aluminum pipe according to claim 2 is slided tight type pipe fitting, it is characterized in that: described seal ring (3) is molded on pipe inner support (10) by Shooting Technique.
6. plastic-aluminum pipe according to claim 1 is slided tight type pipe fitting, it is characterized in that: described seal ring (3) is molded on pipe inner support (10) by impregnation.
7. the sliding tight type pipe fitting of arbitrary described plastic-aluminum pipe according to claim 1 to 6 is characterized in that: in pipe inner support (10) external diameter bottom, one seal washer (5) is installed.
8. the sliding tight type pipe fitting of arbitrary described plastic-aluminum pipe according to claim 1 or 6, it is characterized in that: described convex tendon (11) is except article one muscle (12) is square muscle, and all the other are circular arc muscle (13).
9. the sliding tight type pipe fitting of arbitrary described plastic-aluminum pipe according to claim 1 or 6, it is characterized in that: described convex tendon () 11 is except article one muscle (12) is trapezoidal muscle, and all the other are circular arc muscle (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100453952A CN103115205A (en) | 2013-01-28 | 2013-01-28 | Sliding-compact-type pipe fitting for aluminum-plastic pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100453952A CN103115205A (en) | 2013-01-28 | 2013-01-28 | Sliding-compact-type pipe fitting for aluminum-plastic pipe |
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| CN103115205A true CN103115205A (en) | 2013-05-22 |
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| CN2013100453952A Pending CN103115205A (en) | 2013-01-28 | 2013-01-28 | Sliding-compact-type pipe fitting for aluminum-plastic pipe |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455826A (en) * | 2014-10-29 | 2015-03-25 | 中国水利水电第十工程局有限公司 | Pressure backfill type pipe connection structure |
| CN105333262A (en) * | 2015-11-26 | 2016-02-17 | 华英伦科技(宁波)有限公司 | Cold-expanding, cold-hooping and self-sealing connecting type plastic floor heating pipe fitting |
| CN107401647A (en) * | 2017-08-15 | 2017-11-28 | 日丰企业（佛山）有限公司 | Pipe fitting connecting method and attachment structure |
| CN110388524A (en) * | 2019-07-27 | 2019-10-29 | 安徽埃夫利舍建筑技术有限公司 | A kind of double containment flexibility pipe connected pipe fitting |
| CN112032422A (en) * | 2020-08-29 | 2020-12-04 | 台州半城暖通科技有限公司 | Water-swelling sealing pipe fitting |
| CN112377709A (en) * | 2020-11-19 | 2021-02-19 | 宏岳塑胶集团股份有限公司 | Conversion connecting pipe fitting for pipeline |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03234998A (en) * | 1990-02-09 | 1991-10-18 | Rehau Ag & Co | Fastening members |
| EP0515930A1 (en) * | 1991-05-31 | 1992-12-02 | GEBRÜDER BEUL GmbH & Co. KG | Coupling device for fabricating a non-disconnectible pipe joint |
| US5332269A (en) * | 1991-02-28 | 1994-07-26 | Hewing Gmbh | Connecting device for plastic tubes and method for connecting a plastic tube |
| CN2384093Y (en) * | 1999-06-30 | 2000-06-21 | 浙江铭仕机械有限公司 | Jointing part for pipe joint |
| CN200943796Y (en) * | 2006-09-14 | 2007-09-05 | 佛山市日丰企业有限公司 | Press-fitting pipe fitting |
| CN101430035A (en) * | 2008-12-02 | 2009-05-13 | 浙江世进水控股份有限公司 | Sliding type aluminium plastic composite pipe fittings |
-
2013
- 2013-01-28 CN CN2013100453952A patent/CN103115205A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03234998A (en) * | 1990-02-09 | 1991-10-18 | Rehau Ag & Co | Fastening members |
| US5332269A (en) * | 1991-02-28 | 1994-07-26 | Hewing Gmbh | Connecting device for plastic tubes and method for connecting a plastic tube |
| EP0515930A1 (en) * | 1991-05-31 | 1992-12-02 | GEBRÜDER BEUL GmbH & Co. KG | Coupling device for fabricating a non-disconnectible pipe joint |
| CN2384093Y (en) * | 1999-06-30 | 2000-06-21 | 浙江铭仕机械有限公司 | Jointing part for pipe joint |
| CN200943796Y (en) * | 2006-09-14 | 2007-09-05 | 佛山市日丰企业有限公司 | Press-fitting pipe fitting |
| CN101430035A (en) * | 2008-12-02 | 2009-05-13 | 浙江世进水控股份有限公司 | Sliding type aluminium plastic composite pipe fittings |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104455826A (en) * | 2014-10-29 | 2015-03-25 | 中国水利水电第十工程局有限公司 | Pressure backfill type pipe connection structure |
| CN105333262A (en) * | 2015-11-26 | 2016-02-17 | 华英伦科技(宁波)有限公司 | Cold-expanding, cold-hooping and self-sealing connecting type plastic floor heating pipe fitting |
| CN107401647A (en) * | 2017-08-15 | 2017-11-28 | 日丰企业（佛山）有限公司 | Pipe fitting connecting method and attachment structure |
| CN110388524A (en) * | 2019-07-27 | 2019-10-29 | 安徽埃夫利舍建筑技术有限公司 | A kind of double containment flexibility pipe connected pipe fitting |
| CN112032422A (en) * | 2020-08-29 | 2020-12-04 | 台州半城暖通科技有限公司 | Water-swelling sealing pipe fitting |
| CN112032422B (en) * | 2020-08-29 | 2022-05-10 | 台州半城暖通科技有限公司 | Water-swelling sealing pipe fitting |
| CN112377709A (en) * | 2020-11-19 | 2021-02-19 | 宏岳塑胶集团股份有限公司 | Conversion connecting pipe fitting for pipeline |
| CN112377709B (en) * | 2020-11-19 | 2022-03-29 | 宏岳塑胶集团股份有限公司 | Conversion connecting pipe fitting for pipeline |
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Application publication date: 20130522 |