CN102105732A - Joint for flexible tube - Google Patents
Joint for flexible tube Download PDFInfo
- Publication number
- CN102105732A CN102105732A CN2009801286499A CN200980128649A CN102105732A CN 102105732 A CN102105732 A CN 102105732A CN 2009801286499 A CN2009801286499 A CN 2009801286499A CN 200980128649 A CN200980128649 A CN 200980128649A CN 102105732 A CN102105732 A CN 102105732A
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- CN
- China
- Prior art keywords
- mentioned
- sealing
- flexible tube
- baffle ring
- adapter body
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0036—Joints for corrugated pipes
- F16L25/0054—Joints for corrugated pipes with specially shaped sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
- F16L25/0081—Pipe joints comprising a liquid or fusible seal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/26—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses specially adapted for hoses of metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/28—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses for hoses with one end terminating in a radial flange or collar
Abstract
Provided is a joint for a flexible tube, which does not have a tendency to allow leakage of fluid therefrom. The joint body (20) of the joint (10) for a flexible tube comprises an insertion hole (40), a first storage section (42), a seal member diameter-reducing guide section (48), and a second storage section (44). A seal member (22) comprises a body section (60a) and a single annular section (60c). The body section (60a) is pushed deeply into the second storage section (44) by the end of the flexible tube (300) stored in the joint body (20). The single annular section (60c) is drawn into the second storage section (44) when the body section (60a) is pushed deeply into the second storage section (44). When the single annular section (60c) is drawn into the second storage section (44), the single annular section is engaged with the root section (312) of the flexible tube (300) by the seal member diameter-reducing guide section (48). After the single annular section is drawn into the second storage section (44), the single annular section seals the gap between the inner periphery of the second storage section (44) and the outer periphery of the flexible tube (300).
Description
Technical field
The present invention relates to a kind of lower flexible pipe joint of possibility that is difficult to that leak of liquid takes place and causes by the unexpected state of affairs using.
Background technique
Patent documentation 1 discloses flexible pipe joint shown in Figure 8.This flexible pipe joint comprises adapter body 200, sleeve 202, annular spring 204, O RunddichtringO 206, Sealing 208 and pressure ring 210.
In adapter body 200, be formed with big footpath hole 200a, middle footpath hole 200b and path hole 200c from the inlet side order.Be installed on the middle footpath hole 200b of adapter body 200, its fore-end with flexible tube 300 engages sleeve 202 free slidings.The inlet side of sleeve 202 extends to the big footpath hole 200a of adapter body 200.Annular spring 204 forms ring-type, utilizes resiliently deformable expansion or shrinks, and it is embedded into the paddy portion 312 of flexible tube 300 under the state of imposed load not periphery is installed on the inlet side outer surface of sleeve 202 under the state of hole enlargement.Pressure ring 210 spinnings are in the inlet side of adapter body 200.Between pressure ring 210 and adapter body 200, embed O RunddichtringO 206 is arranged.Inner peripheral surface at pressure ring 210 is equipped with Sealing 208.The external diameter of this annular spring 204 when near the internal diameter the interior depths end of pressure ring 210 is embedded in the periphery of paddy portion 312 less than annular spring 204.
Patent documentation 2 discloses the flexible pipe joint shown in Fig. 9 (A), (B).リ テ one Na portion material) 252, pressure ring 254 and waterproof seal 256 this flexible pipe joint comprises adapter body 250, location retainer (Japanese:.
Adapter body 250 has pipe patchhole 270.In pipe patchhole 270, be inserted with flexible tube 300.
Location retainer 252 is configured in the pipe patchhole 270.Location retainer 252 has rear projection 252a.Rear projection 252a is inserted in the paddy portion 312 of flexible tube 300 outer surfaces.
Be inserted into fixed pressure ring 254 under the state in the paddy portion 312 of flexible tube 300 outer surfaces at the rear projection 252a that will locate retainer 252.In addition, pressure ring 254 slides along axial direction in the pipe patchhole 270 of adapter body 250.Thereby pressure ring 254 can not be embedded into displacement between the position of the state in the paddy portion 312 that position and the rear projection 252a that keeps locating retainer 252 in the paddy portion 312 of flexible tube 300 be embedded into flexible tube 300 at the rear projection 252a of location retainer 252.
Waterproof seal 256 is with sealing between flexible tube 300 and the adapter body 250.
And, on the flexible pipe joint shown in Fig. 9 (A), (B), also be provided with locking framework.This locking framework locks pressure ring 254 under state as described below.This state is meant that rear projection 252a is embedded into the state in the paddy portion 312.This locking framework is made of stop ring member the 258, the 1st groove the 260, the 2nd groove 262 and the 3rd groove 264.
Stop ring member 258 is members of C font.The 1st groove 260 is formed at adapter body 250.The 1st groove 260 engages with the peripheral part of stop ring member 258.The 2nd groove 262 also is formed at adapter body 250.The 2nd groove 262 also engages with the peripheral part of stop ring member 258.The 3rd groove 264 is formed at the outer circumferential face of pressure ring 254.The 3rd groove 264 engages with the interior perimembranous of stop ring member 258.Stop ring member 258 is sticked in interior perimembranous under the state of the 3rd groove 264, correspondingly slides to the 2nd groove 262 from the 1st groove 260 with the slip of pressure ring 254.
When the peripheral part of stop ring member 258 was sticked in the 1st groove 260, pressure ring 254 temporarily was fixed in adapter body 250 with half insertion state.The position of the pressure ring 254 of this moment is that rear projection 252a is not embedded into the position in the paddy portion 312.When the peripheral part of stop ring member 258 was sticked in the 2nd groove 262, pressure ring 254 was locked.At this moment, projection 252a in rear remains the state that is embedded in the paddy portion 312.The amount of being pressed into of pressure ring 254 be set to and above-mentioned the 1st groove 260 and the 2nd groove 262 between distance about equally.
Adopt this flexible pipe joint, when being pressed into pressure ring 254, can keep connection flexible tube 300 under the state of good sealing property.
The prior art document
Patent documentation
Patent documentation 1: Japanese kokai publication hei 6-185680 communique
Patent documentation 2: TOHKEMY 2003-176888 communique
Summary of the invention
Invent problem to be solved
But disclosed flexible pipe joint existence is easy to take place the such problem of escape of liquid in the patent documentation 1 and 2.
The present invention promptly makes in order to address this problem a little, and its purpose is to provide a kind of flexible pipe joint that is difficult to take place escape of liquid.
The means of dealing with problems
In order to achieve the above object, abide by one aspect of the present invention, flexible pipe joint 10,12 comprises adapter body 20,21 and Sealing 22,23 that can resiliently deformable.Sealing 22,23 is housed in the adapter body 20,21.In adapter body 20,21, insert flexible tube 300.On the peripheral part of flexible tube 300, alternately be provided with the mountain portion 310 and the paddy portion 312 of on the circumferencial direction complete cycle, extending side by side along tube axis direction.Central authorities at Sealing 22,23 are formed with pipe patchhole 60h.In pipe patchhole 60h, insert flexible tube 300.Seal between the outer circumferential face of the flexible tube 300 of Sealing 22,23 in being inserted into pipe patchhole 60h and the inner peripheral surface of adapter body 20,21. Adapter body 20,21 has inserts mouthful the 40,41, the 1st accommodation section 42, Sealing undergauge guide portion 48 and the 2nd accommodation section 44.In inserting mouth 40,41, insert flexible tube 300.The 1st accommodation section 42 is formed on the depths of inserting mouth 40,41, is communicated in this insertion mouth 40,41.Sealing undergauge guide portion 48 is formed on a side opposite with inserting mouth of the 1st accommodation section 42, along with the constriction away from the 1st accommodation section 42.The 2nd accommodation section 44 is formed on the depths of Sealing undergauge guide portion 48, accommodates the Sealing 22,23 of the front end periphery of the front end of flexible tube 300 and this flexible tube 300. Sealing 22,23 has metastomium 60a, 61a and the 60c of seal action portion, 61c, 61g.Metastomium 60a, 61a utilize the front end that is housed in the flexible tube 300 in the adapter body 20,21 to be pressed into the depths of the 2nd accommodation section 44.By metastomium 60a, 61a being pressed into the inboard of the 2nd accommodation section 44 and the 60c of seal action portion, 61c, 61g being incorporated in the 2nd accommodation section 44.Be engaged in the paddy portion 312 of flexible tube 300 when the 60c of seal action portion, 61c, 61g are introduced in the 2nd accommodation section 44 under the effect of Sealing undergauge guide portion 48, it is sealed between periphery with interior week of the 2nd accommodation section 44 and flexible tube 300 after introducing in the 2nd accommodation section 44.
Seal between the 60c of seal action portion, 61c, 61g the periphery interior week of the 2nd accommodation section 44 and its flexible tube 300.When sealing, make the 60c of seal action portion, 61c, 61g be engaged in the paddy portion 312 of flexible tube 300, therefore, can make the raising of sealing and make the 60c of seal action portion, 61c, 61g be engaged in the paddy portion 312 of flexible tube 300 more deeply and deposit.Because they can and be deposited, and therefore, are difficult to take place escape of liquid.
In addition, above-mentioned seal action portion also can have a plurality of annulus 61c, 61g.These annulus 61c, 61g be configuration side by side on the central axial direction of Sealing undergauge guide portion 48 and the 1st accommodation section 42.And adjacent annulus 61c, 61g also can be connected to each other.
A plurality of annulus 61c, 61g that seal action portion is had are connected to each other.These annulus 61c, 61g be configuration side by side on the central axial direction of Sealing undergauge guide portion 48 and the 1st accommodation section 42.Thus, when metastomium 60a, 61a were introduced in the depths of the 2nd accommodation section 44, these annulus 61c, 61g were incorporated in the 2nd accommodation section 44 successively.These annulus 61c, 61g are engaged in a plurality of paddy portion 312 of flexible tube 300 respectively.Because a plurality of annulus 61c, 61g are engaged in a plurality of paddy portion 312 respectively, therefore, are difficult to take place escape of liquid.
In addition, above-mentioned seal action portion also can have 1 the annulus 60c that extends on the circumferencial direction complete cycle of flexible tube.And annulus 60c also can be engaged in the paddy portion 312 of flexible tube 300.
In addition, expect that above-mentioned flexible coupling also comprises pressure ring 24.Pressure ring 24 be configured in respect to Sealing 22,23 be abutted against head main body 20,21 insertion mouth 40,41 1 sides the position and be connected in adapter body 20,21.Pressure ring 24 has the 76a of tube portion that runs through for flexible tube 300.End in the 76a of tube portion, that be configured in the side in the insertion mouth 40,41 is provided with pressure ring conical surface 82b.Pressure ring conical surface 82b opens towards the depths expansion of inserting mouth 40,41.And expectation Sealing 22,23 also has abjunction preventing part 60e.Abjunction preventing part 60e is configured in respect to the 60c of seal action portion, 61c, 61g near the position of inserting mouth 40,41.Periphery at abjunction preventing part 60e is provided with periphery conical surface 62.Periphery conical surface 62 is towards the direction constriction of inserting mouth 40,41.Periphery conical surface 62 is relative with pressure ring conical surface 82b.To flexible tube 300 when the direction from adapter body 20,21 drawings applies pulling capacity, be subjected to reaction force if be contacted with the periphery conical surface 62 of pressure ring conical surface 82b from pressure ring conical surface 82b, then the part 63 of back side among the 60e of abjunction preventing part, that be configured in periphery conical surface 62 is delivered to flexible tube 300 with this reaction force, stops to extract flexible tube 300.
Perhaps, expect that above-mentioned flexible pipe joint 10,12 comprises also that external diameter utilizes resiliently deformable and the elasticity baffle ring 106 that changes.And the relative face of the interior week with adapter body 20,21 among the 76a of portion of being desirably in is provided with the elasticity baffle ring and accommodates and keep groove 84.And the elasticity baffle ring that is embedded in interior week of expectation elasticity baffle ring 106 is accommodated in the maintenance groove 84.And what be desirably in adapter body 20,21 is provided with the 1st elasticity baffle ring engagement groove 90 and the 2nd elasticity baffle ring engagement groove 92 interior week.The 2nd elasticity baffle ring engagement groove 92 is arranged on respect to the 1st elasticity baffle ring engagement groove 90 away from the position of inserting mouth 40,41.When the periphery of elasticity baffle ring 106 is embedded in the 1st elasticity baffle ring engagement groove 90, if being pressed into, inserts in the mouth 40,41 pressure ring 24, then elasticity baffle ring 106 skids off from the 1st elasticity baffle ring engagement groove 90, is embedded into the 2nd elasticity baffle ring engagement groove 92.
Perhaps, expect that above-mentioned flexible pipe joint 10,12 also comprises resin layer 110.Resin layer 110 is engaged in the embedding reservations 77 among the 76a of tube portion of pressure ring 24.Embed reservations 77 and be when the periphery of elasticity baffle ring is embedded in the 1st elasticity baffle ring engagement groove from adapter body and expose and when the periphery of elasticity baffle ring is embedded in the 2nd elasticity baffle ring engagement groove, be configured in part in inserting mouthful.And expectation pressure ring 24 is except the 76a of tube portion, and also the periphery at the 76a of tube portion has lip part 76b.Lip part 76b is relative with adapter body 20,21 across embedding reservations 77 ground.
In addition, expect that above-mentioned flexible pipe joint 10,12 also comprises fire-resistant Sealing 104.Fire-resistant Sealing 104 is configured in the periphery of Sealing 22,23 on the interior week of the 1st accommodation section 42.
The invention effect
Adopt the present invention, can be difficult to take place escape of liquid.
Description of drawings
Fig. 1 partly cuts open figure with the flexible pipe joint of state representation the 1st mode of execution of the present invention before the indentation sealing spare.
Fig. 2 be the state representation finished with indentation sealing spare this flexible pipe joint partly cut open figure.
Fig. 3 partly cuts open figure with this flexible pipe joint that inserts the state representation of flexible tube after finishing.
Among Fig. 4, (a) be Sealing partly cut open figure, (b) be the rear view of Sealing, (c) be the side view of Sealing.
Fig. 5 partly cuts open figure with the flexible pipe joint of state representation the 2nd mode of execution of the present invention before the indentation sealing spare.
Fig. 6 be the state representation finished with indentation sealing spare this flexible pipe joint partly cut open figure.
Fig. 7 partly cuts open figure with this flexible pipe joint that inserts the state representation of flexible tube after finishing.
Fig. 8 be the 1st in the past example flexible pipe joint partly cut open figure.
Among Fig. 9, being to insert flexible tube state representation the 2nd midway sectional view of the flexible pipe joint of example in the past (A), (B) is to finish the sectional view of this flexible pipe joint of state representation afterwards to insert flexible tube.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.In the following description, to the identical identical reference character of parts mark.Their title and function are also identical.Thereby, they are not described in detail repeatedly.
The 1st mode of execution
Below, the 1st mode of execution of the present invention is described with reference to the accompanying drawings.Fig. 1 partly cuts open figure with the flexible pipe joint 10 of state representation the 1st mode of execution of the present invention before the indentation sealing spare 22.Fig. 2 partly cuts open figure with this flexible pipe joint 10 of indentation sealing spare 22 state representation midway.Fig. 3 partly cuts open figure with this flexible pipe joint 10 that inserts the state representation of flexible tube 300 after finishing.(a) of Fig. 4 be Sealing 22 partly cut open figure.(b) of Fig. 4 is the rear view of Sealing 22.(c) of Fig. 4 is the side view of Sealing 22.
As shown in Figure 1, the flexible pipe joint 10 of present embodiment comprises adapter body 20, Sealing 22 and pressure ring 24 etc.Be formed with in an end of adapter body 20 and accept oral area 30.Periphery in the other end of adapter body 20 is formed with and connects with outside thread 32.Accepting oral area 30 is parts of accepting the front end of metal flexible tube 300.Sealing 22 is housed in the inside of accepting oral area 30 of this adapter body 20.Pressure ring 24 is connected in this adapter body 20 with the half insertion state of reserving the amount of being pressed into.Pressure ring 24 is configured in the position of inserting mouthful 40 sides than Sealing 22 by aftermentioned.
As shown in Figure 1, flexible tube 300 alternately is provided with the mountain portion 310 and the paddy portion 312 of extending side by side along tube axis direction on the circumferencial direction complete cycle on its peripheral part, coats its periphery by synthetic resin layers such as vinyl chloride 314.
As shown in Figure 1, accepting to be provided with in the oral area 30 and insert mouthful the 42, the 2nd accommodation section 44, the 40, the 1st accommodation section in adapter body 20.Wherein the most close inlet side be to insert mouthfuls 40.Wherein the most close depths side be the 2nd accommodation section 44.Flexible tube 300 is inserted into and inserts in the mouth 40.The 1st accommodation section 42 is formed on the depths of inserting mouth 40.The 1st accommodation section 42 is communicated in inserts mouth 40.In addition, in explanation of the present invention, the meaning of " connection " is meant by path and makes two spaces become coupled condition.Here said " path " is not only the member of tubulose, also comprises simple hole.The front end and the above-mentioned Sealing 22 of flexible tube 300 accommodated in the 2nd accommodation section 44.End has retainer 46 in the interior depths of the 2nd accommodation section 44.Retainer 46 is compared to the central axial direction of adapter body 20 outstanding with the 2nd accommodation section 44.Between the 1st accommodation section 42 and the 2nd accommodation section 44, there is Sealing undergauge guide portion 48.Sealing undergauge guide portion 48 be arranged on the 1st accommodation section 42 with insert mouthfuls 40 opposite sides.Sealing undergauge guide portion 48 is along with the shape of constriction away from the 1st accommodation section 42.Between the 1st accommodation section 42 and insertion mouth 40, there is anticreep undergauge guide portion 50.Anticreep undergauge guide portion 50 is along with the shape of constriction away from inserting mouth 40.
Shown in Fig. 4 (a)～(c), the Sealing 22 of present embodiment has metastomium 60a, pipe end bears the 60b of portion, single annulus 60c, linking department 60d and abjunction preventing part 60e.Central authorities at Sealing 22 are formed with pipe patchhole 60h.In pipe patchhole 60h, insert flexible tube 300.Metastomium 60a, pipe end bear the 60b of portion, single annulus 60c, linking department 60d and abjunction preventing part 60e and become one.Metastomium 60a is a tubular.The external diameter of the mountain portion 310 of the internal diameter of metastomium 60a and flexible tube 300 is roughly the same.It is inwardly outstanding at the front end of this metastomium 60a that pipe end bears the 60b of portion.By making single annulus 60c be engaged in the paddy portion 312 of flexible tube 300, the outer circumferential face of the inner peripheral surface of adapter body 20 and flexible tube 300 seals.Single annulus 60c is outwards outstanding in the rearward end of metastomium 60a.Linking department 60d is arranged on the rear of this single annulus 60c, and single annulus 60c and abjunction preventing part 60e are linked up.The internal diameter of linking department 60d is greater than the internal diameter of metastomium 60a.Abjunction preventing part 60e be configured in the rearward end of this linking department 60d, promptly with respect to single annulus 60c near the position of inserting mouthfuls 40.When containing Sealing 22 in adapter body 20, the internal diameter of abjunction preventing part 60e is less than the internal diameter of linking department 60d, greater than the external diameter of the mountain portion 310 of flexible tube 300.When containing Sealing 22 in adapter body 20, the external diameter of abjunction preventing part 60e is greater than the external diameter of linking department 60d.
Sealing part 22 (original state) before inserting flexible tube 300 disposes as illustrated in fig. 1.That is, under original state, Sealing 22 is configured to pipe end bears the 60b of portion and metastomium 60a is positioned at the 2nd accommodation section 44, single annulus 60c is positioned at the 1st accommodation section 42, and abjunction preventing part 60e is positioned at and inserts mouthfuls 40.
As shown in Figure 1, the retainer in adapter body 20 46 disposes the front end card and hangs member 70.The front end card is hung member 70 and is formed by metal, hard resin etc.The front end card is hung member 70 and is had hole enlargement undergauge ring portion 72a, and a plurality of freely detent 72b of resiliently deformable of C shape freely.The outer diameter part of ring portion 72a is fastened in the circumferential groove 74a of the outside diameter that is arranged at retainer 46.Detent 72b is outstanding in the 2nd accommodation section 44 from a plurality of positions of the inside diameter of ring portion 72a.
As shown in Figure 1, pressure ring 24 has a 76a of portion and lip part 76b.76a of tube portion and lip part 76b become one.The 76a of tube portion is configured in insertion mouth 40 sides of adapter body 20, is connected in adapter body 20.In inserting mouth 40, the 76a of tube portion can move on axial direction.Flexible tube 300 can be applied among the 76a of portion.Lip part 76b is arranged on the periphery of the inlet side rearward end of the 76a of this.Lip part 76b is relative with adapter body 20 across embedding reservations described later 77 ground.The external diameter of lip part 76b is greater than the aperture of inserting mouth 40.
The 76a of tube portion has seal channel 78.Seal channel 78 is arranged on the interior week of the inlet side rear end of a 76a of portion.Seal channel 78 forms in a circumferential direction.In seal channel 78, embed waterproof seal 80 is arranged.Waterproof seal 80 is by making such as EPDM.The cross section of waterproof seal 80 is a T shape.Be embedded with the selection breathability member 100 of pin shape at a plurality of positions of the circumferencial direction of waterproof seal 80.Select breathability member 100 to make gas permeation, but do not make solid, liquid sees through.Thus, can check gas leakage.Selecting breathability member 100 for example is the porous plastid that comprises the Sealing of continuous poriferous plasma membrane or have continuous pore.The former continuous poriferous plasma membrane can obtain by shaping tetrafluoroethylene resin powder.Port リ メ チ Le ア Network リ レ one ト) etc. the latter's porous plastid can be by (Japanese: the thermoplastic resin powder is shaped and obtains by polyethylene, polypropylene, PMA.
The periphery that being disposed at the end of inserting the side in the mouth 40 in the 76a of tube portion is provided with guiding conical surface 82a.Guiding conical surface 82a is shaped as the thin shape of front end.The gradient of guiding conical surface 82a is roughly the same with the anticreep undergauge guide portion 50 that is arranged at adapter body 20.Being disposed in the 76a of tube portion insert the side in mouthfuls 40 the end be provided with pressure ring conical surface 82b interior week.Pressure ring conical surface 82b is the sharp wide (Japanese: shape first Expansion Ga り) towards the depths expansion of inserting mouth 40.
As shown in Figure 1, the face relative with the interior week of adapter body 20 in the 76a of tube portion is provided with the elasticity baffle ring and accommodates maintenance groove 84.The elasticity baffle ring is accommodated and is kept groove 84 to be provided with in a circumferential direction.On the other hand, be provided with the 1st elasticity baffle ring engagement groove 90 and the 2nd elasticity baffle ring engagement groove 92 interior week at the insertion mouth 40 of adapter body 20.They extend along circumferencial direction respectively.The 2nd elasticity baffle ring engagement groove 92 is arranged on respect to the 1st elasticity baffle ring engagement groove 90 apart from inserting mouthfuls 40 positions far away.Front side cell wall in the 1st elasticity baffle ring engagement groove 90 is formed with groove conical surface 90a.Groove conical surface 90a is towards the direction constriction of the 1st accommodation section 42.
The rear side of accommodating maintenance groove 84 at the elasticity baffle ring is provided with waterproof seal groove 86.In this waterproof seal groove 86, embed waterproof seal 102 is arranged.In the interior week of the 1st accommodation section 42 of adapter body 20, be provided with fire-resistant seal channel 94 in the mode of the periphery of surrounding Sealing 22.In this fire-resistant seal channel 94, embed the fire-resistant Sealing 104 that is made of the rubber that contains thermally expandable graphite etc. is arranged.
The flexible pipe joint 10 of present embodiment comprises the 1st orientation maintaining means and the 2nd orientation maintaining means.The 1st orientation maintaining means remains on initial position with the front end location of pressure ring 24.Fig. 1 represents the state (half insertion state) that pressure ring 24 is positioned and remains on initial position.Can be clear and definite by Fig. 1, here the meaning of said initial position be meant flexible tube 300 insert before after the abjunction preventing part 60e of Sealing 22.The 2nd orientation maintaining means remains on the position that is pressed into fully with the front end location of pressure ring 24.Fig. 3 represents that the front end of pressure ring 24 is positioned and remains on the state of the position that is pressed into fully.Can be clear and definite by Fig. 3, after the meaning of the said here position that is pressed into fully is meant and is pressed into Sealing 22 in the 2nd accommodation section 44 along with inserting flexible tube 300, and the abjunction preventing part 60e of Sealing 22 between separate the position of micro-gap.
As shown in Figure 1, the 1st orientation maintaining means by the elasticity baffle ring of pressure ring 24 accommodate the 1st elasticity baffle ring engagement groove 90 that keeps groove 84, elasticity baffle ring 106, adapter body 20, resin-coated layer 110 constitutes.Elasticity baffle ring 106 has scarce edge portion, and its profile is utilized resiliently deformable and changed.Accommodate at the elasticity baffle ring and to keep embedding in the groove 84 the interior perimembranous that contains elasticity baffle ring 106.The peripheral part of the flexible baffle ring 106 of engaging in the 1st elasticity baffle ring engagement groove 90.Resin-coated layer 110 covers to be close to half mode of a part of inserting the outer surface of the part of exposing from adapter body 20 in the pressure ring 24 of state and accepting the outer surface of oral area 30.With they be close to purpose be that be heated by after being covered on the pressure ring 24, resin-coated layer 110 shrinks.Thus, resin-coated layer 110 can be engaged in and embed reservations 77.Embedding reservations 77 is such parts, that is, be among the 76a of tube portion of pressure ring 24, when the periphery of elasticity baffle ring 106 is embedded in the 1st elasticity baffle ring engagement groove 90, exposes and when the periphery of elasticity baffle ring 106 is embedded in the 2nd elasticity baffle ring engagement groove 92, be configured in the part of inserting in mouthfuls 40 from adapter body 20.As a result, lip part 76b is relative with adapter body 20 across embedding reservations 77 ground.The thickness of resin-coated layer 110 is greater than the gap between the 76a of tube portion of inner peripheral surface that inserts mouth 40 and pressure ring 24, and the resin-coated layer 110 plastic film by thermal shrinkage constitute.Also can substitute the plastic film of thermal shrinkage, and constitute by plastic of thermal shrinkage or the pipe of making by such plastics.Raw material as resin-coated layer 110 is preferably the non-vinyl chloride raw material that polystyrene shrink film, polyolefin shrink films, polyester shrink film, polyprene shrink film etc. are considered environment.
Utilize the 1st orientation maintaining means, pressure ring 24 is positioned and remains on above-mentioned initial position.Thus, apply unexpected power, also be difficult to be pressed in the adapter body 20 even half-and-half insert the pressure ring 24 of state.
The 2nd orientation maintaining means is accommodated by the elasticity baffle ring of pressure ring 24 and is kept the 2nd elasticity baffle ring engagement groove 92 of groove 84, elasticity baffle ring 106, adapter body 20 to constitute.As mentioned above, the 2nd elasticity baffle ring engagement groove 92 is in the interior week of accepting oral area 30, is arranged on side by side with respect to the 1st elasticity baffle ring engagement groove 90 apart from inserting mouthfuls 40 positions far away with the 1st elasticity baffle ring engagement groove 90.Pull down after the resin-coated layer 110, when being pressed into the pressure ring 24 that partly inserts state in the insertion mouth 40, elasticity baffle ring 106 skids off from the groove conical surface 90a of the 1st elasticity baffle ring engagement groove 90.When further being pressed into pressure ring 24 afterwards, elasticity baffle ring 106 is embedded in the 2nd elasticity baffle ring engagement groove 92.Thus, the front end of pressure ring 24 is positioned and remains on the position that is pressed into fully.As mentioned above, Fig. 3 represents that elasticity baffle ring 106 is embedded in the state of the 2nd elasticity baffle ring engagement groove 92.
In addition, the amount of being pressed into of pressure ring 24, be stroke length S (with reference to Fig. 2) be set to and the 1st elasticity baffle ring engagement groove 90 and the 2nd elasticity baffle ring engagement groove 92 between distance about equally.
Then, on above-mentioned flexible pipe joint 10, connect the main points of flexible tube 300 with reference to Fig. 1～Fig. 3 explanation.
Before connecting flexible tube 300 as illustrated in fig. 1 the stock of flexible pipe joint 10, when keeping, when carrying etc. under the situation, the 1st orientation maintaining means is difficult to take place the half pressure ring 24 careless bulged-in states of affairs of inserting state.That is, utilize the peripheral part of elasticity baffle ring 106 and the 1st elasticity baffle ring engagement groove 90 snap action, be arranged at the supporting role of the resin-coated layer 110 that embeds reservations 77, can prevent that the above-mentioned state of affairs from taking place.
When connecting flexible tube 300, at first, (synthetic resin layer 314 of the fore-end of this flexible tube 300 is peeled off in advance with flexible tube 300.As a result, the mountain portion 310 of this flexible tube 300 exposes.) be inserted in the insertion mouth 40 of adapter body 20 from the inlet side of pressure ring 24.Flexible tube 300 passes through according to the order of abjunction preventing part 60e, linking department 60d, single annulus 60c, metastomium 60a in Sealing 22.Afterwards, the front end of flexible tube 300 pipe end that is connected to Sealing 22 bears the 60b of portion.At this moment, because the single annulus 60c of Sealing 22 forms outwards outstanding shape, therefore, when inserting flexible tube 300, this single annulus 60c can not become obstruction.The front end of flexible tube 300 can be inserted in the Sealing 22 swimmingly.
Flexible tube 300 is inserted into pipe end with Sealing 22 when bearing the 60b of portion butt, and the metastomium 60a of Sealing 22 is pressed into the depths of the 2nd accommodation section 44.Along with this is pressed into, the single annulus 60c of Sealing 22 contracts through the narrow side shifting of guide portion 48 to Sealing.Single annulus 60c is forced in the Sealing undergauge guide portion 48 and inside necking deformation.Single annulus 60c is firm to be introduced in the 2nd accommodation section 44 by Sealing undergauge guide portion 48, just is engaged in the paddy portion 312 of flexible tube 300.At this moment, single annulus 60c is close to the inclined-plane 312a of paddy portion 312.Meanwhile, the abjunction preventing part 60e of Sealing 22 is to the narrow side shifting of anticreep undergauge guide portion 50.Abjunction preventing part 60e is pressed into and is introduced in the 1st accommodation section 42 to the undergauge direction by anticreep undergauge guide portion 50.Thus, as shown in Figure 2, can utilize Sealing 22 with sealing reliably between the inner peripheral surface of the 2nd accommodation section 44 of the outer circumferential face of the front end of flexible tube 300 and adapter body 20.By sealing here, can prevent in flexible tube 300 fluid that flows from the front end of flexible tube 300 through spilling between week in the 2nd accommodation section 44 of the front end periphery of flexible tube 300 and adapter body 20.Even flexible tube 300 is out of shape slightly, this effect also can reduce hardly.In addition, even bear between the 60b of portion, also can expect sealing function at the front end of flexible tube 300 and the pipe end of Sealing 22.
Then, flexible tube 300 is inserted into pipe end with Sealing 22 when bearing the 60b of portion butt, and the internal surface that the pipe end of Sealing 22 bears the front end of the inside diameter of the 60b of portion and flexible tube 300 is sticked in the detent 72b that the front end card is hung member 70.It is after internal surface that pipe end at Sealing 22 bears the front end of the inside diameter of the 60b of portion and flexible tube 300 passes through between the inner peripheral surface of detent 72b and the 2nd accommodation section 44 that the internal surface that the pipe end of Sealing 22 bears the front end of the inside diameter of the 60b of portion and flexible tube 300 is sticked in detent 72b.Detent 72b the pipe end of Sealing 22 bear that the internal surface of the front end of the inside diameter of the 60b of portion and flexible tube 300 passes through during in resiliently deformable.When this pipe end bore the 60b of portion by detent 72b, workmen's hand can be felt.Thus, the workmen can feel really that flexible tube 300 has been inserted into prescribed depth.
And, be sticked in the detent 72b that the front end card is hung member 70 by the front end that makes flexible tube 300 like that, and abjunction preventing part 60e enters into paddy portion 312, can suppress flexible tube 300 and rock.Fig. 2 represents that the internal surface that the pipe end of Sealing 22 bears the front end of the inside diameter of the 60b of portion and flexible tube 300 passes through between the inner peripheral surface of detent 72b and the 2nd accommodation section 44, the front end of flexible tube 300 is resisted against the situation of retainer 46.
After insertion flexible tube 300 is finished, resin-coated layer 110 is pulled down from pressure ring 24.Pulling down resin-coated layer at 110 o'clock, pressure ring 24 is pressed into fully with the amount of being pressed into (running length S shown in Figure 2).Along with this is pressed into, elasticity baffle ring 106 is embedded into the elasticity baffle ring in interior perimembranous accommodates under the state that keeps in the groove 84, skids off from the 1st elasticity baffle ring engagement groove 90 along the groove conical surface 90a of the 1st elasticity baffle ring engagement groove 90 of adapter body 20.Because elasticity baffle ring 106 moves along groove conical surface 90a, therefore, elasticity baffle ring 106 is with the mode resiliently deformable of undergauge.Then, in the moment that pressure ring 24 is pressed into fully, the peripheral part of elasticity baffle ring 106 is embedded in the 2nd elasticity baffle ring engagement groove 92.When the peripheral part of elasticity baffle ring 106 is embedded in the 2nd elasticity baffle ring engagement groove 92, elasticity baffle ring 106 hole enlargements of undergauge so far.Thus, can prevent that Sealing 22 from returning mobile to the inlet side direction of accepting oral area 30.Fig. 3 represents the state that pressure ring 24 is pressed into fully.The front end of pressure ring 24 is held in place and is pressed into the position fully in the rear side of the abjunction preventing part of Sealing 22 60e.At this moment, can be clear and definite by Fig. 3, can guarantee the sealing state of Sealing 22.
In addition, along with being pressed into fully of pressure ring 24, the pressure ring conical surface 82b of the front end of pressure ring 24 is near the periphery conical surface 62 of the abjunction preventing part 60e of Sealing 22, and relative with it.Afterwards, to flexible tube 300 when the direction from adapter body 20 drawings applies pulling capacity, periphery conical surface 62 moves slightly and is contacted with pressure ring conical surface 82b to the direction of inserting mouthfuls 40.When periphery conical surface 62 was contacted with pressure ring conical surface 82b, 82b was subjected to reaction force from the pressure ring conical surface.When pressure ring conical surface 82b was subjected to reaction force, the embedded part 63 that is configured in the back side of periphery conical surface 62 as the part of abjunction preventing part 60e was embedded in the paddy portion 312 of flexible tube 300 at periphery conical surface 62.Because periphery conical surface 62 is subjected to reaction force from pressure ring conical surface 82b, and embedded part 63 is delivered to the paddy portion 312 of flexible tube 300 with this reaction force, therefore can stop and extract flexible tube 300.
The 2nd mode of execution
Below, the 2nd mode of execution of the present invention is described with reference to the accompanying drawings.Fig. 5 partly cuts open figure with the flexible pipe joint of state representation the present invention's the 2nd mode of execution before the indentation sealing spare 23.Fig. 6 be with indentation sealing spare 23 finish state representation midway this flexible pipe joint partly cut open figure.Fig. 7 partly cuts open figure with this flexible pipe joint that inserts the state representation of flexible tube after finishing.
As shown in Figure 5, the flexible pipe joint 12 of present embodiment comprises adapter body 21, Sealing 23 and pressure ring 24 etc.Be formed with in an end of adapter body 21 and accept oral area 31.Periphery in the other end of adapter body 21 is formed with and connects with outside thread 32.Accepting oral area 31 is parts of accepting the front end of metal flexible tube 300.Sealing 23 is housed in the inside of accepting oral area 31 of this adapter body 21.Pressure ring 24 is inserted into the half insertion state of reserving the amount of being pressed into and accepts in the oral area 31.
As shown in Figure 5, accepting to be provided with in the oral area 31 and insert mouthful the 42, the 2nd accommodation section 44, the 41, the 1st accommodation section in adapter body 21.
As shown in Figure 5, Sealing 23 has metastomium 61a, pipe end bears the 60b of portion, the 1st annulus 61c, the 2nd annulus 61g, linking department 60d and abjunction preventing part 60e.Metastomium 61a, pipe end bear the 60b of portion, the 1st annulus 61c, the 2nd annulus 61g, linking department 60d and abjunction preventing part 60e and become one.Metastomium 61a is a tubular.The length of metastomium 61a is less than the length of the metastomium 60a of the 1st mode of execution.The 1st annulus 61c and the 2nd annulus 61g are ring-type.The 1st annulus 61c is outwards outstanding in the rearward end of this metastomium 61a.The 2nd annulus 61g is connected in the rearward end of the 1st annulus 61c.The interval of the 1st annulus 61c and the 2nd annulus 61g is roughly the same with the interval of the paddy portion 312 of flexible tube 300.The 1st annulus 61c and the 2nd annulus 61g play the roughly the same effect of single annulus 60c with the 1st mode of execution.Linking department 60d is arranged on the rear of the 2nd annulus 61g, and the 2nd annulus 61g and abjunction preventing part 60e are linked up.
(original state) disposes sealing part 23 as illustrated in fig. 5 before inserting flexible tube 300.That is, under original state, Sealing 23 is configured to pipe end bears the 60b of portion and metastomium 61a is positioned at the 2nd accommodation section 44, the 1 annulus 61c and the 2nd annulus 61g is positioned at the 1st accommodation section 42, and abjunction preventing part 60e is positioned at and inserts mouthfuls 41.
Other parts are identical with above-mentioned the 1st mode of execution.Their function is also identical.Thereby, they are not described in detail repeatedly at this.
Then, on above-mentioned flexible pipe joint 12, connect the main points of flexible tube 300 with reference to Fig. 5～Fig. 7 explanation.
Before connecting flexible tube 300 as illustrated in fig. 5 the stock of flexible pipe joint 12, when keeping, when carrying etc. under the situation, the 1st orientation maintaining means is difficult to take place the half pressure ring 24 careless bulged-in states of affairs of inserting state.
When connecting flexible tube 300, at first, the inlet side of flexible tube 300 from pressure ring 24 is inserted in the insertion mouth 41 of adapter body 21.Flexible tube 300 passes through according to the order of abjunction preventing part 60e, linking department 60d, the 2nd annulus 61g, the 1st annulus 61c, metastomium 60a in Sealing 23.Afterwards, the front end of flexible tube 300 pipe end that is connected to Sealing 23 bears the 60b of portion.At this moment, because the 1st annulus 61c and the 2nd annulus 61g form outwards outstanding shape, therefore, when inserting flexible tube 300, they can not become obstruction.The front end of flexible tube 300 can be inserted in the Sealing 23 swimmingly.
The 1st annulus 61c move along Sealing undergauge guide portion 48 during in, the 2nd annulus 61g moves to the 2nd accommodation section 44 along the inner peripheral surface of the 1st accommodation section 42.When the 1st annulus 61c was engaged in the paddy portion 312 of flexible tube 300, the 2nd annulus 61g began to be engaged in adjacent paddy portion 312 of the paddy portion of being meshed with the 1st annulus 61c 312.Afterwards, by the 2nd annulus 61g behind the 1st accommodation section 42 when Sealing undergauge guide portion 48 moves, 48 pushings of sealed undergauge guide portion of the 2nd annulus 61g and inside necking deformation.Afterwards, the 2nd annulus 61g is firm to be introduced in the 2nd accommodation section 44 by Sealing undergauge guide portion 48, just is engaged in the paddy portion 312 of flexible tube 300.Thus, as shown in Figure 6, sealed 23 sealing reliably between the inner peripheral surface of the 2nd accommodation section 44 of the outer circumferential face of the front end of flexible tube 300 and adapter body 21.At this moment, the 1st annulus 61c is close to the inclined-plane 312a of paddy portion 312.The 2nd annulus 61g also is close to the inclined-plane 312a of paddy portion 312.Be close to by them, the possibility that the fluid that flows in flexible tube 300 spills is lower than the flexible pipe joint 10 of the 1st mode of execution.
The 1st annulus 61c, the 2nd annulus 61g move during in, the abjunction preventing part 60e of Sealing 23 is to the narrow side shifting of anticreep undergauge guide portion 50.Abjunction preventing part 60e is pressed into and is introduced in the 1st accommodation section 42 to the undergauge direction by anticreep undergauge guide portion 50.
In addition, as shown in Figure 6, flexible tube 300 is inserted into pipe end with Sealing 23 when bearing the 60b of portion butt, and the internal surface that the pipe end of Sealing 23 bears the front end of the inside diameter of the 60b of portion and flexible tube 300 engages with the detent 72b that the front end card is hung member 70.
After insertion flexible tube 300 is finished, resin-coated layer 110 is pulled down from pressure ring 24.Pulling down resin-coated layer at 110 o'clock, pressure ring 24 is being pressed into fully with the amount of being pressed into.Thus, can prevent that Sealing 23 from returning mobile to the inlet side direction of accepting oral area 31.Fig. 7 represents the state that pressure ring 24 is pressed into fully.The front end of pressure ring 24 remains on the abjunction preventing part 60e rear side of Sealing 23.Thereby, can guarantee the sealing state of Sealing 22.
In addition, along with being pressed into fully of pressure ring 24,, also can stoping reliably and extract flexible tube 300 even afterwards flexible tube 300 is applied the external force of drawing direction.Its principle is identical with the 1st mode of execution.
This disclosed mode of execution all is an illustration aspect all.Self-evident, scope of the present invention is not restricted according to above-mentioned mode of execution, can change various designs in the scope that does not break away from purport of the present invention yet.
For example, the present invention is not limited to a end in adapter body 20 or adapter body 21 and is formed with and accepts oral area 30 or accept oral area 31, be formed with the outside thread flexible pipe joint that connects with outside thread 32 in the periphery of the other end of adapter body 20 or adapter body 21.Self-evident, the present invention for example also can be applied to other structure, for example, has the flexible pipe joint of the symmetrical hub end of accepting oral area, the flexible pipe joint of elbow type etc. at two ends.
In addition, the present invention is not limited to by a position or two positions in the paddy portion 312 of Sealing sealing flexible tube 300.The part of paddy portion 312 in the Sealing, that be close to flexible tube 300 also can be 3 more than the position.
In addition, in the present invention, as long as the internal diameter of metastomium 60a is below the external diameter of flexible tube 300, pipe end bears the 60b of portion, and (Japanese: the core gold) 60f is not essential with strengthening pad.Its reason is, utilizes the frictional force that acts between metastomium 60a and the flexible tube 300, and Sealing is introduced in the 2nd accommodation section of adapter body.Not having pipe end to bear the 60b of portion and strengthening under the situation of pad 60f, do not need the front end card to hang member 70.
In addition, in the 2nd mode of execution, the interval of the 1st annulus 61c and the 2nd annulus 61g also can be less than the interval of the paddy portion 312 of flexible tube 300.Its reason is that the interval of the 1st annulus 61c and the 2nd annulus 61g can enlarge because of resiliently deformable when being engaged in the paddy portion 312 of flexible tube 300.
Description of reference numerals
10,12, flexible pipe joint; 20,21, adapter body; 22,23, sealing part; 24,210,254, pressure ring; 30,31, accept oral area; 32, connection external screw thread; 40,41, insert port; 42, the 1st resettlement section; 44, the 2nd resettlement section; 46, stop section; 48, sealing part undergauge guide portion; 50, anticreep undergauge guide portion; 60a, 61a, trunk section; 60b, pipe end receiving portion; 60c, single annulus; 60d, linking part; 60e, anti-delinking part; 60f, reinforcement pad; 60h, pipe patchhole; 61c, the 1st annulus; 61g, the 2nd annulus; 62, periphery taper face; 63, embed part; 70, the front end card is hung member; 72a, ring portion; 72b, non-return pawl; 74a, circumference groove; 76a, tube section; 76b, flange part; 77, embed reservations; 78, seal channel; 80,102, waterproof seal; 82a, guiding taper face; 82b, pressure ring taper face; 84, the elasticity baffle ring is accommodated the maintenance groove; 86, waterproof seal groove; 90, the 1st elasticity baffle ring slot; 90a, groove taper face; 92, the 2nd elasticity baffle ring slot; 94, fire resistant seal spare groove; 100, select seeing through property member; 104, fire resistant seal spare; 106, elasticity baffle ring; 110, resin-coated layer; 200,250, adapter body; 200a, hole, big footpath; 200b, central diameter hole; 200c, diameter holes; 202, sleeve; 204, ring spring; 206, ring; 208, sealing part; 252, location retainer; 252a, rear projection; 256, waterproof seal; 258, locating snap ring member; 260, the 1st groove; 262, the 2nd groove; 264, the 3rd groove; 270, pipe patchhole; 300, flexible pipe; 310, mountain section; 312, paddy section; 312a, inclined-plane; 314, synthetic resin layer; S, stroke length.
Claims (7)
1. flexible pipe joint, this flexible pipe joint comprise adapter body and be housed in the above-mentioned adapter body can resiliently deformable Sealing;
In above-mentioned adapter body, insert flexible tube; On the peripheral part of above-mentioned flexible tube, alternately be provided with the mountain portion and the paddy portion of on the circumferencial direction complete cycle, extending side by side along tube axis direction; Central authorities at above-mentioned Sealing are formed with the pipe patchhole to insert above-mentioned flexible tube; Above-mentioned Sealing seals between the inner peripheral surface of outer circumferential face that is inserted into the flexible tube that aforementioned tube inserts in the hole and above-mentioned adapter body, it is characterized in that,
Above-mentioned adapter body has: insert mouth, it inserts for above-mentioned flexible tube; The 1st accommodation section, the depths that it is formed on above-mentioned insertion mouth is communicated in this insertion mouth; Sealing undergauge guide portion, it is formed on a side opposite with above-mentioned insertion mouth of above-mentioned the 1st accommodation section, along with the constriction away from above-mentioned the 1st accommodation section; The 2nd accommodation section, it is formed on the depths of above-mentioned Sealing undergauge guide portion, accommodates the Sealing of periphery of the front end of the front end of above-mentioned flexible tube and this flexible tube;
Above-mentioned Sealing has: metastomium, and its front end that is housed in the flexible tube in the above-mentioned adapter body is pressed into to the depths of above-mentioned the 2nd accommodation section; Seal action portion is by being pressed into above-mentioned metastomium and the sealing service portion is incorporated in above-mentioned the 2nd accommodation section to the depths of above-mentioned the 2nd accommodation section; Above-mentioned seal action portion is engaged in the paddy portion of above-mentioned flexible tube under the effect of above-mentioned Sealing undergauge guide portion when being introduced in above-mentioned the 2nd accommodation section, sealed between the periphery with interior week of above-mentioned the 2nd accommodation section and above-mentioned flexible tube after introducing in above-mentioned the 2nd accommodation section.
2. flexible pipe joint according to claim 1 is characterized in that,
Above-mentioned seal action portion has on the central axial direction of above-mentioned Sealing undergauge guide portion and above-mentioned the 1st accommodation section a plurality of annulus of configuration side by side;
Adjacent above-mentioned annulus is connected to each other.
3. flexible pipe joint according to claim 1 is characterized in that,
Above-mentioned seal action portion has 1 annulus that extends on the circumferencial direction complete cycle of above-mentioned flexible tube;
Above-mentioned annulus is engaged in the paddy portion of above-mentioned flexible tube.
4. flexible pipe joint according to claim 1 is characterized in that,
Above-mentioned flexible coupling also comprises and being configured in than above-mentioned Sealing by the position of the insertion oral-lateral of above-mentioned adapter body and be connected in the pressure ring of above-mentioned adapter body;
Above-mentioned pressure ring has the tube portion of running through for above-mentioned flexible tube;
The end that is configured in the side in the above-mentioned insertion mouth in above-mentioned tube portion is provided with towards the depths of above-mentioned insertion mouth and expands the pressure ring conical surface of opening;
Above-mentioned Sealing also has the abjunction preventing part;
Above-mentioned abjunction preventing part is configured in the position than the close above-mentioned insertion mouth of above-mentioned seal action portion;
Periphery in above-mentioned abjunction preventing part is provided with the periphery conical surface towards the direction constriction of above-mentioned insertion mouth;
Above-mentioned periphery conical surface is relative with above-mentioned pressure ring conical surface;
To above-mentioned flexible tube when the direction from above-mentioned adapter body drawing has applied pulling capacity, if the above-mentioned periphery conical surface that is contacted with above-mentioned pressure ring conical surface is subjected to reaction force from above-mentioned pressure ring conical surface, the part of the back side that is configured in above-mentioned periphery conical surface in the then above-mentioned abjunction preventing part is delivered to above-mentioned flexible tube with above-mentioned reaction force and stops and extract above-mentioned flexible tube.
5. flexible pipe joint according to claim 4 is characterized in that,
Above-mentioned flexible pipe joint comprises also that external diameter utilizes resiliently deformable and the elasticity baffle ring that changes;
The face relative with the interior week of above-mentioned adapter body in above-mentioned tube portion is provided with the elasticity baffle ring and accommodates the maintenance groove;
The above-mentioned elasticity baffle ring that is embedded in interior week of above-mentioned elasticity baffle ring is accommodated in the maintenance groove;
Be provided with the 1st elasticity baffle ring engagement groove and the 2nd elasticity baffle ring engagement groove interior week in above-mentioned adapter body;
Above-mentioned the 2nd elasticity baffle ring engagement groove is arranged on than the position of above-mentioned the 1st elasticity baffle ring engagement groove away from above-mentioned insertion mouth;
When the periphery of above-mentioned elasticity baffle ring was embedded in the 1st elasticity baffle ring engagement groove, if above-mentioned pressure ring is pressed in the above-mentioned insertion mouth, then above-mentioned elasticity baffle ring skidded off from above-mentioned the 1st elasticity baffle ring engagement groove, is embedded into above-mentioned the 2nd elasticity baffle ring engagement groove.
6. flexible pipe joint according to claim 5 is characterized in that,
Above-mentioned flexible pipe joint also comprises resin layer;
Above-mentioned resin layer is engaged in the embedding reservations in the tube portion of above-mentioned pressure ring, and these embedding reservations are exposed and are configured in the above-mentioned insertion mouth when the periphery of above-mentioned elasticity baffle ring is embedded in the 2nd elasticity baffle ring engagement groove from above-mentioned adapter body when the periphery of above-mentioned elasticity baffle ring is embedded in the 1st elasticity baffle ring engagement groove;
Above-mentioned pressure ring is except above-mentioned tube portion, and also the periphery in above-mentioned tube portion has lip part;
Above-mentioned lip part is relative with above-mentioned adapter body across above-mentioned embedding reservations.
7. flexible pipe joint according to claim 1 is characterized in that,
Above-mentioned flexible pipe joint also comprises fire-resistant Sealing;
Above-mentioned fire-resistant Sealing is configured in the periphery of above-mentioned Sealing at the place of interior week of above-mentioned the 1st accommodation section.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-208418 | 2008-08-13 | ||
| JP2008208418A JP5202178B2 (en) | 2008-08-13 | 2008-08-13 | Fitting for flexible pipe |
| PCT/JP2009/064127 WO2010018809A1 (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100306304A Division CN102588692A (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
| CN201210030629.1A Division CN102563263B (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102105732A true CN102105732A (en) | 2011-06-22 |
| CN102105732B CN102105732B (en) | 2012-10-17 |
Family
ID=41668953
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210030629.1A Active CN102563263B (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
| CN2012100306304A Pending CN102588692A (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
| CN2009801286499A Active CN102105732B (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210030629.1A Active CN102563263B (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
| CN2012100306304A Pending CN102588692A (en) | 2008-08-13 | 2009-08-10 | Joint for flexible tube |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP5202178B2 (en) |
| KR (1) | KR101267691B1 (en) |
| CN (3) | CN102563263B (en) |
| HK (1) | HK1154415A1 (en) |
| RU (1) | RU2451863C1 (en) |
| WO (1) | WO2010018809A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403431A (en) * | 2012-03-06 | 2013-11-20 | Jfe继手株式会社 | Retainer, and joint for flexible pipe |
| CN105936247A (en) * | 2015-03-02 | 2016-09-14 | 住友电装株式会社 | Wire protecting member |
| CN111102410A (en) * | 2018-10-26 | 2020-05-05 | 光阳产业股份有限公司 | Joint for flexible pipe and clamping fastener for said joint |
| CN113994131A (en) * | 2019-06-21 | 2022-01-28 | 世赞能源株式会社 | Pipe joint and assembling method thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5463083B2 (en) * | 2009-06-09 | 2014-04-09 | 大阪瓦斯株式会社 | Fitting for flexible pipe |
| JP6267519B2 (en) * | 2014-01-16 | 2018-01-24 | 株式会社サンコー | Flexible pipe fittings |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0632547Y2 (en) * | 1989-12-29 | 1994-08-24 | 東京瓦斯株式会社 | Flexible pipe fittings |
| JPH0393682U (en) * | 1990-01-11 | 1991-09-25 | ||
| JPH06185680A (en) * | 1992-12-17 | 1994-07-08 | Tokyo Gas Co Ltd | Flexible pipe joint |
| JPH07103383A (en) * | 1993-10-05 | 1995-04-18 | Hitachi Metals Ltd | Flexible pipe joint |
| JPH07110087A (en) * | 1993-10-12 | 1995-04-25 | Hitachi Metals Ltd | Flexible pipe fitting |
| JP2002048280A (en) * | 2000-08-04 | 2002-02-15 | Toyoda Gosei Co Ltd | Connecting structure of hose |
| JP4749616B2 (en) * | 2001-07-19 | 2011-08-17 | 日立金属株式会社 | Plug-in fittings |
| CN100373085C (en) * | 2001-10-04 | 2008-03-05 | 东京瓦斯株式会社 | Inserting pipe joint |
| DE10310938A1 (en) * | 2003-03-13 | 2004-09-23 | Brugg Rohr Ag, Holding | Method of making a connection between a corrugated pipe and a connector |
| CN1191442C (en) * | 2003-06-17 | 2005-03-02 | 张申正 | Quick connector for corrugated metal flexible tube |
-
2008
- 2008-08-13 JP JP2008208418A patent/JP5202178B2/en active Active
-
2009
- 2009-08-10 CN CN201210030629.1A patent/CN102563263B/en active Active
- 2009-08-10 WO PCT/JP2009/064127 patent/WO2010018809A1/en active Application Filing
- 2009-08-10 CN CN2012100306304A patent/CN102588692A/en active Pending
- 2009-08-10 KR KR1020117003220A patent/KR101267691B1/en active IP Right Grant
- 2009-08-10 CN CN2009801286499A patent/CN102105732B/en active Active
- 2009-08-10 RU RU2011109233/06A patent/RU2451863C1/en active
-
2011
- 2011-08-12 HK HK11108474.5A patent/HK1154415A1/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103403431A (en) * | 2012-03-06 | 2013-11-20 | Jfe继手株式会社 | Retainer, and joint for flexible pipe |
| CN105936247A (en) * | 2015-03-02 | 2016-09-14 | 住友电装株式会社 | Wire protecting member |
| CN105936247B (en) * | 2015-03-02 | 2018-11-27 | 住友电装株式会社 | Wire protective component |
| CN111102410A (en) * | 2018-10-26 | 2020-05-05 | 光阳产业股份有限公司 | Joint for flexible pipe and clamping fastener for said joint |
| CN111102410B (en) * | 2018-10-26 | 2023-05-02 | 光阳产业股份有限公司 | Joint for flexible pipe and locking member for the joint |
| CN113994131A (en) * | 2019-06-21 | 2022-01-28 | 世赞能源株式会社 | Pipe joint and assembling method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010018809A1 (en) | 2010-02-18 |
| JP2010043706A (en) | 2010-02-25 |
| CN102563263A (en) | 2012-07-11 |
| HK1154415A1 (en) | 2012-04-20 |
| JP5202178B2 (en) | 2013-06-05 |
| CN102588692A (en) | 2012-07-18 |
| CN102105732B (en) | 2012-10-17 |
| KR101267691B1 (en) | 2013-05-24 |
| RU2451863C1 (en) | 2012-05-27 |
| CN102563263B (en) | 2014-12-10 |
| KR20110028549A (en) | 2011-03-18 |
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