CN1194684A - Quick connection device for fluid conduit under pressure - Google Patents
Quick connection device for fluid conduit under pressure Download PDFInfo
- Publication number
- CN1194684A CN1194684A CN 97190622 CN97190622A CN1194684A CN 1194684 A CN1194684 A CN 1194684A CN 97190622 CN97190622 CN 97190622 CN 97190622 A CN97190622 A CN 97190622A CN 1194684 A CN1194684 A CN 1194684A
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- sleeve pipe
- pipeline
- sealing
- liner
- moulded
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Abstract
The invention discloses a quick connection device for a fluid conduit under pressure, in particular for motor vehicles, comprising a metal sleeve (10) of which a first end comprises packing (18) moulded onto it and is fitted over an enlarged end (24) of the conduit (12) and a second end thereof comprises packing (16) moulded onto it for sealably fitting to the end of an end fitting (32) of a fluid circuit under pressure. The invention is useful particularly in air conditioning, braking and power steering systems for motor vehicles.
Description
The present invention relates to the Quick Connect Kit that the pressure fluid pipeline uses, the Quick Connect Kit that particularly relates to the pressure fluid pipeline use of motor vehicle, say that more specifically it relates to fuel circuit or such as the Quick Connect Kit of the pipeline in the motor-driven high-pressure fluid circuit that turns to loop, brake circuit or air conditioner loop.
From being used for the lower fluid circuit of pressure, as the cooling circuit of motor such as a kind of Quick Connect Kit of recognizing the patent application EP-0606028.This known devices mainly comprises a plastic bushing, and this sleeve pipe is by being fixed on the end of rubber or elastomeric elastic pipeline such as die casting (overmolded) liner of rubber or elastomeric elastically deformable.The fluid that this class connects relatively low pressure can provide goodish effect, and still, if it is applied in the high-pressure fluid circuit, its sealing just can not be satisfactory.
In conventional method, the O type ring packing ring that the Quick Connect Kit of high-pressure fluid pipes is usually used some interpolations assembles, and its major defect is, this Quick Connect Kit generally can not provide good sealing, and their require to apply sizable power on assembly.Under the effect of hydrodynamic pressure and temperature, they are very sensitive to creep, thereby damage sealing.
Objectives of the present invention are exactly that the problem that exists in the Quick Connect Kit at high-pressure fluid circuit proposes a kind of simple and effective solution.
For this reason, the present invention proposes the Quick Connect Kit that a kind of pressure fluid pipeline uses, specifically, the present invention proposes a kind of Quick Connect Kit of pressure fluid pipeline use of motor vehicle, this device comprises a hard sleeve, it has the first end and a second end that is connected with the tubular end section of pressure fluid pipeline hermetically that are fixed on hermetically on the described pipeline, this device is characterised in that, the liner that sealing between sleeve pipe and the end segment is moulded into by the material such as rubber or elastomeric elastically deformable on the second end of sleeve pipe constitutes, sealing between sleeve pipe and the pipeline then compression of the material by being positioned at the elastically deformable on the sleeve pipe first end keeps, when sleeve pipe is connected on the end segment, the end of pipeline and end segment, an inside that is embedded in another, and be subjected to the guiding of another inside.
The liner that is moulded on the sleeve pipe the second end provides some advantages that surpass traditional serial O type circle:
Much bigger by the area of contact between end segment and liner that sleeve pipe produces, thus sealing effect improved significantly;
It is less that end segment is installed in power required within the liner; And
Creep under die casting liner fluid pressure and the temperature action is insensitive.
According to another characteristic of the invention, the end of pipeline is enlarging, holding the end of end segment, and by to described liner against, with very little or be essentially the inside that zero gap is embedded in sleeve pipe.
The first end of sleeve pipe is preferably in and is pressed into waveform on the pipeline, or is squeezed on the pipeline.
In the first embodiment of the present invention, above-mentioned pipeline is a hard, is then guaranteed by the material layer that is moulded into the elastically deformable on the sleeve pipe before being installed on the pipeline at sleeve pipe with the sealing of the first end of sleeve pipe.
In another embodiment of the present invention, above-mentioned pipeline is the elastic hose such as the material of rubber or elastomeric elastically deformable, and its end is screwed on the one section stereoplasm tube that is embedded in the above-mentioned sleeve pipe, and the sealing with the first end of sleeve pipe is provided.
In the third embodiment of the present invention, above-mentioned pipeline is a hard, be rotated on the end of pipeline at sleeve pipe after, the sealing of itself and sleeve pipe is guaranteed by the material of at least a elastically deformable between first end that is moulded into sleeve pipe and the pipeline.
The first end of sleeve pipe and the sealing material between pipeline the second end and the sealing material between the end segment best and sleeve pipe is different.
A kind of sealing material that uses can adapt to pressure fluid efficiently, but more expensive relatively, and the validity of another kind of sealing material is weaker, but more cheaply, only as " promptly " sealing, thereby may obtain to save.
By the reference accompanying drawing, read the following explanation of example, will have a better understanding to the present invention, it is more clear that other characteristic of the present invention, details and advantage also will become, wherein:
Fig. 1 and 2 is sleeve pipe and the axial cross section schematic representation that is used for the pipe end of pressure fluid;
Fig. 3 is that an expression sleeve pipe is installed on the pipeline, and is engaged in the axial cross section schematic representation on the tubular end section of pressure fluid circuit;
Fig. 4,5 and 6 is respectively the view of corresponding diagram 1,2 and 3, but has represented another embodiment of invention; With
Fig. 7 is the axially section schematic representation of another embodiment of the present invention.
Earlier with reference to Fig. 1 and 2, they are respectively the axial cross section schematic representation that constitutes according to the end of the sleeve pipe 10 of the part of Quick Connect Kit of the present invention and pressure fluid pipeline 12.
The internal diameter of liner 18 is in fact corresponding to the internal diameter of the remaining part of the external diameter of the flared end 14 of pipeline 12 and sleeve pipe 10.Liner 16 has one at its end that points to liner 18, and the front-end face 28 of the flared end 14 of pipeline 12 can contact with this pedestal from the outstanding pedestal 26 of the internal surface of sleeve pipe 10, and against thereon.
Unit Installation process according to the present invention is very simple:
Be engaged in sleeve pipe 10 on the flared end 14 of pipeline 12 by its end 22, be resisted against until the end 26 of liner 16 on the front-end face 28 of pipeline 12, because liner 16 and 18 is separated, thereby the intermediate portion of sleeve pipe 10 provides guiding for the flared end 14 of pipeline 12.
Then, the pipeline 12 that is equipped with sleeve pipe 10 can be connected with the tubular end section 32 of high-pressure fluid circuit (particularly when pressure clings to more than or equal to 20), described end segment 32 is made by for example metal, and near its free end, comprise a flange 34, described flange 34 has and the free-ended internal diameter of sleeve pipe 10 respective outer diameter in fact, and the external diameter of end segment 32 internal diameter with the flared end 14 of pipeline 12 is suitable in fact.
Like this, the free end of end segment 32 is with very little or be essentially zero gap and be embedded in the certain-length of pipeline flared end inboard, the sealing of first level is provided by the outer surface of liner 16 compressions against end segment 32, and the sealing of second level is then provided by the liner 18 between the flared end 14 of sleeve pipe 10 and pipeline 12.
Be to property as schematically shown in Figure 1, the internal surface of liner 16 can be made into the ring rib 36 with projection, thereby forms continuous seal series on the outer surface of section 32 endways.
Joint between sleeve pipe 10 and the end segment 32 provides by means of a kind of resilient U-shaped clip known in the art or analog (end illustrates), it is embedded in sleeve pipe 10 in the groove 38 of the flange 34 of end segment 32, thereby end segment 32 is fixed within the sleeve pipe 10.
As shown in arrow 40, liner 16 and sleeve pipe 10 flattened or extruding mutually, seal so that form better between section 32 and the sleeve pipe 10 endways.
In this device according to the present invention, liner 16 can be made by a kind of material of (VITTON) selling with commodity " dimension is logical " by name or by halogenation eyeball rubber, this material can stand the effect of fluid chamber high pressure and temperature, even to the chemical corrosion fluid as freezing mixture also is like this, the material of other liner then can adopt more cheap, as EPDM type or materials similar.
In being shown schematically in another embodiment of Fig. 4 to 6, sleeve pipe 10 has only one to be moulded near the liner 16 in its end that cooperates with end segment 32, its flared end 22 does not have such liner, and fluid line 42 be one being the elastic hose of the elastically deformable of base material such as rubber or synthetic rubber, its end is engaged on the hard tube 44 of metal or suitable plastics, this hard tube 44 has a flared end 46, its external diameter is in fact corresponding to the internal diameter of the flared end 22 of sleeve pipe 10, and its internal diameter is in fact corresponding to the internal diameter of liner 16.
The other end 48 that is positioned at the pipe 44 within the flexible pipe 42 can radially outwards expand, and with participation flexible pipe 42 is fixed on the pipe 44.
During assembling, and previous embodiments, the flared end 22 of sleeve pipe 10 is engaged on the flared end 46 of pipe 44, and, shown in 48, like that, on described pipe, be pressed into waveform, thereby flexible pipe 42 works to make the end 22 of sleeve pipe 10 and manages liner between 44.
And previous embodiments, the front-end face of the flared end 46 of pipe 44 is resisted against on the liner 16 of sleeve pipe 10, the tubular end section 32 of fluid circuit is embedded in the inside of the flared end 46 of sleeve pipe 10 and pipe 44, and sleeve pipe 10 can be shown in 50 like that, make wavy surface with liner 16, with the sealing of improvement with the tubular end section.
In another embodiment shown in Figure 7, sleeve pipe 10 is complete cylinders, has identical internal diameter on its whole length, and this internal diameter is identical with the external diameter of the flared end 14 of fluid line 12 shown in Figure 2.
When assembling, sleeve pipe 10 is engaged on the flared end 14 of pipeline 12, so that stretch out from the both direction of described flared end 14, then, this assembly is put into mould, make the liner similar 16 and 18 by injecting one or both sealing materials, be injected to the inside of the sleeve pipe 10 before the front-end face of flared end 14 of pipeline 12 earlier, be injected to again between the outer surface of the end of sleeve pipe 10 and pipeline 12 to liner shown in Figure 1.
So just made and be used for sleeve pipe 10 is assembled to liner 16 and 18 on the pipeline 12.
Identical among the using method of the device that obtains with this method and Fig. 1 and 2, the free end of the tubular end section 32 of fluid circuit is embedded in the inside of sleeve pipe 10 and liner 16, also is embedded in the inside of the flared end 14 of pipeline 12.
The characteristics of said apparatus are, owing to adopt the liner of die casting to substitute O type circle, therefore, it is just less relatively that it is assembled in power required on the end segment 32.In addition, can be clear that from Fig. 3,6 and 7 liner 16 has been subjected to maintenance, to exempt from the influence of the creep that hydrodynamic pressure and temperature caused. Liner 16 and 18 provides the two-stage that will substantially exceed O type circle on area sealing, thereby the good sealing that can resist high-pressure liquid is provided.
In another embodiment, liner 16 and/or 18 can be moulded on the outer surface of sleeve pipe 10.For example, the sleeve pipe 10 of Fig. 7 can comprise two be moulded into its outer surface and be embedded in pipeline 12 and end segment 32 in, thereby become the liner 16 and 18 of part in the hole.
Claims (11)
1, the Quick Connect Kit that a kind of pressure fluid pipeline uses, the Quick Connect Kit that uses of a kind of pressure fluid pipeline of motor vehicle particularly, this device comprises a hard sleeve (10), it has one and is fixed on described pipeline (12 hermetically, 42) first end on and a second end that is connected with the tubular end section (32) of pressure fluid pipeline hermetically, this device is characterised in that: the liner (16) that the sealing between sleeve pipe (10) and the end segment (32) is moulded into by the material such as rubber or elastomeric elastically deformable on the second end of sleeve pipe (10) constitutes, sealing between sleeve pipe (10) and the pipeline (12) then keeps by the compression to the material of the elastically deformable on the first end that is positioned at sleeve pipe, when sleeve pipe (10) is connected on the end segment, pipeline (12,42) and the end (14 of end segment (32), 46), an inside that is embedded in another, and be subjected to the guiding of another inside.
2, device as claimed in claim 1 is characterized in that, the internal surface of the second end of described liner (16) overlapping casing tube (10), and the surface comprises ring rib (36) within it, this ring rib (36) form sealing series on the outer surface of section (32) endways.
3, device as claimed in claim 1 or 2 is characterized in that, the end (14) of pipeline (12) is enlarging; Described end segment (32) is installed with little or null in fact gap in this end (14), and being embedded in the inside of sleeve pipe (10) with little or null in fact gap, this end (14) are resisted against on the described liner (16) of the second end of sleeve pipe.
4, the described device of arbitrary as described above claim is characterized in that, the first end of sleeve pipe (10) is extruded into waveform hermetically or is squeezed on the pipeline (12).
5, the described device of arbitrary as described above claim is characterized in that, the second end of sleeve pipe (10) is extruded into waveform with the liner (16) of die casting or is squeezed on the surface of described end segment (32).
6, the described device of arbitrary as described above claim, it is characterized in that, pipeline (12) is a hard, and the sealing of the first end of itself and sleeve pipe (10) is installed in the material that pipeline (12) is moulded into the elastically deformable on the sleeve pipe (10) before going up by one deck at it and constitutes.
7, device as claimed in claim 6 is characterized in that, the material that is moulded into the elastically deformable on the first end of sleeve pipe (10) is bonded on the pipeline (12).
8, the described device of arbitrary as described above claim, it is characterized in that, described pipeline is to be the elastic hose (42) of base material with the material such as elastically deformables such as rubber or synthetic rubber, and its end is engaged on the stereoplasm tube (44), and the sealing of the first end of formation and sleeve pipe (10).
9, as one of them described device of claim 1 to 3, it is characterized in that, described pipeline (12) is a hard, with the sealing of sleeve pipe (10) then be after sleeve pipe places the end of pipeline (12), be moulded between the first end of sleeve pipe (10) and the pipeline (12) and be moulded into by material and be provided with on the internal surface of the second end of sleeve pipe (10) to a kind of elastically deformable of major general.
10, the described device of arbitrary as described above claim is characterized in that, the sealing material between the sealing material between the first end of sleeve pipe (10) and the pipeline (12) and the second end of sleeve pipe (10) and the end segment (32) is different.
11, the described device of arbitrary as described above claim is characterized in that, the liner (16) of the second end of sleeve pipe (10) comprises some ring ribs (36) that are used for going up in described end segment (32) formation sealing continuous series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97190622 CN1194684A (en) | 1996-06-10 | 1997-06-10 | Quick connection device for fluid conduit under pressure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR96/07149 | 1996-06-10 | ||
| CN 97190622 CN1194684A (en) | 1996-06-10 | 1997-06-10 | Quick connection device for fluid conduit under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1194684A true CN1194684A (en) | 1998-09-30 |
Family
ID=5178804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97190622 Pending CN1194684A (en) | 1996-06-10 | 1997-06-10 | Quick connection device for fluid conduit under pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1194684A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844164A (en) * | 2010-04-30 | 2010-09-29 | 浙江广涛卫厨有限公司 | Production process of quick connecting pipe |
| CN104081105A (en) * | 2011-11-18 | 2014-10-01 | Dh科技发展私人贸易有限公司 | Sealed microfluidic conduit assemblies and methods for fabricating them |
| CN105526446A (en) * | 2014-09-30 | 2016-04-27 | 丹阳市腾辉液压机械有限公司 | Pre-pressing device for pipe joint |
| CN105526447A (en) * | 2014-09-30 | 2016-04-27 | 丹阳市腾辉液压机械有限公司 | Anti-vibration and sealing pipe joint device |
| CN107649482A (en) * | 2017-10-31 | 2018-02-02 | 中铁第四勘察设计院集团有限公司 | A kind of diesel rail car tail gas collection and processing system |
| CN112628488A (en) * | 2020-12-25 | 2021-04-09 | 深圳市喜德丽实业有限公司 | Tensile reinforcement connection method for metal pipe fitting |
-
1997
- 1997-06-10 CN CN 97190622 patent/CN1194684A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844164A (en) * | 2010-04-30 | 2010-09-29 | 浙江广涛卫厨有限公司 | Production process of quick connecting pipe |
| CN104081105A (en) * | 2011-11-18 | 2014-10-01 | Dh科技发展私人贸易有限公司 | Sealed microfluidic conduit assemblies and methods for fabricating them |
| CN104081105B (en) * | 2011-11-18 | 2016-08-17 | Dh科技发展私人贸易有限公司 | Sealed microfluidic conduit molectron and preparation method thereof |
| CN105526446A (en) * | 2014-09-30 | 2016-04-27 | 丹阳市腾辉液压机械有限公司 | Pre-pressing device for pipe joint |
| CN105526447A (en) * | 2014-09-30 | 2016-04-27 | 丹阳市腾辉液压机械有限公司 | Anti-vibration and sealing pipe joint device |
| CN105526446B (en) * | 2014-09-30 | 2017-11-07 | 丹阳市腾辉液压机械有限公司 | A kind of pipe joint pre-compressing device |
| CN107649482A (en) * | 2017-10-31 | 2018-02-02 | 中铁第四勘察设计院集团有限公司 | A kind of diesel rail car tail gas collection and processing system |
| CN112628488A (en) * | 2020-12-25 | 2021-04-09 | 深圳市喜德丽实业有限公司 | Tensile reinforcement connection method for metal pipe fitting |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |