CN102257308A

CN102257308A - Hose joint

Info

Publication number: CN102257308A
Application number: CN2009801510920A
Authority: CN
Inventors: 泷本伸二
Original assignee: Toyox Co Ltd
Current assignee: Toyox Co Ltd
Priority date: 2008-10-22
Filing date: 2009-10-16
Publication date: 2011-11-23
Anticipated expiration: 2029-10-16
Also published as: JP2010101374A; HK1162643A1; WO2010047284A1; CN102257308B

Abstract

A fluid drainage path can be constructed without boring a hole, so manufacturing cost will be reduced. In a hose joint provided with a cylindrical nipple (N) that is inserted into a hose (H), a sleeve (S) that fits around the outside of the hose and is provided with multiple hose holding pieces (4) that extend in the axial direction, and a nut (B) that pushes the hose holding pieces (4) of the sleeve toward the hose when the nut is screwed onto the nipple and tightened, recesses (8-10) that extend in the axial direction are formed either around the outside or the inside, or both, of a ring (R) incorporated in the inside of the nut (B), and the recesses act as a fluid drainage path.

Description

The flexible pipe connected member

Technical field

The present invention relates to be attached to the front end of flexible pipe flexible pipe is connected to the flexible pipe connected member of another member or device.

Background technique

The flexible pipe connected member of describing in patent documentation 1 is commonly referred to as this flexible pipe connected member.Conventional flexible pipe connected member is developed, is the blast for the double-deck flexible pipe that prevents from mainly to comprise netted reinforcing material.About this structure, connector device is fitted in the draw bolt, and O shape ring is assemblied between draw bolt and the connector, to keep the tightness in the connecting area.Then, connect flexible pipe and connector, use the fastening hose loop of coupling nut then,, make flexible pipe be connected device simultaneously and hose loop keeps securely so that flexible pipe is linked to draw bolt with hose loop.

The draw bolt that is linked to the front end of flexible pipe by this way is linked to preset device or analog, introduces in described device or the analog with the fluid that will be supplied to flexible pipe.

The long-term use of this flexible pipe connected member causes the deterioration of O shape ring.The deterioration of O shape ring causes the reduction of the sealability of O shape ring, may cause fluid from the hoses leak to the coupling nut in.Because being exposed to via O shape ring, the end face of flexible pipe escapes on the runner of the fluid in the connected member, so fluid is invaded in the interlayer space of double-deck flexible pipe.

When coupling nut does not obtain fully fastening or used flexible pipe for many years to take place to worsen and when lacking flexibility, fluid is also invaded in the interlayer space of double-deck flexible pipe.

If fluid has been invaded in the interlayer space of flexible pipe as mentioned above, then interlayer pressure rises gradually, because be trapped in the fluid of the interlayer approach of not overflowing.Therefore, flexible pipe may be blasted under the effect of higher fluid pressure.

For fear of this situation, conventional flexible pipe connected member is included in and wherein forms foraminate coupling nut, so that the fluid that escapes in the coupling nut is disposed to the outside from aperture.Because the fluid in the coupling nut is discharged via aperture by this way, so the hydrodynamic pressure in the coupling nut is reduced.Therefore, fluid can not be invaded in the interlayer space of flexible pipe easily, even intrusion has taken place fluid, flexible pipe can not blasted yet, because pressure is overflowed from aperture.

Patent documentation 1: Japanese Patent Application Laid-Open H08-285143 communique

Summary of the invention

Technical problem

For the conventional flexible pipe connected member that as above constitutes, coupling nut is machined to be drilled with aperture.Boring can generate and hinder the burr that is connected with flexible pipe, so must need the technology of deburring.Therefore, the step in the manufacturing process increases, the shortcoming that this causes cost to increase.

On the other hand, form by resin is integrally moulded, then do not need aforesaid bore process, also do not need deburring certainly if having the coupling nut of aperture.Yet, in this case, must setting in injection mould for example be used to form the fuse of aperture.Fuse is set in mould like this may causes resin can not fully be diffused on the side of the fuse that is positioned at resin-cast direction downstream, and/or when casting resin, form the phenomenon of welding line at concourse.

An object of the present invention is to provide a kind of permission forms the fluid-evacuation path under situation about need not hole flexible pipe connected member.

The scheme of dealing with problems

First invention is characterised in that in a kind of flexible pipe connected member, this flexible pipe connected member comprises: insert the circle tube joint in the flexible pipe; Be assemblied on the outer periphery of described flexible pipe and be provided with the sleeve of a plurality of flexible pipe retention tabs of in axial direction extending and along the circumferential direction arranging; With the nut that pushes the flexible pipe retention tab of described sleeve on being screwed to described joint and when fastening towards described flexible pipe, wherein, when the fastened so that flexible pipe retention tab adjacent one another are of described sleeve comes in contact each other, described flexible pipe retention tab combination and on the outer periphery of described sleeve, form the fluid-evacuation path that in axial direction extends continuously.

Second invention is characterised in that described fluid-evacuation path is the axial valley that is combined to form by adjacent flexible pipe retention tab.

The 3rd invention is characterised in that described axial valley is made of the inclined-plane or the cambered surface that form at least one side in the relative both sides of the axial direction of each flexible pipe retention tab.

The 4th invention is characterised in that in a kind of flexible pipe connected member, this flexible pipe connected member comprises: insert the columnar joint in the flexible pipe; Be assemblied on the outer periphery of described flexible pipe and be provided with the sleeve of a plurality of flexible pipe retention tabs of in axial direction extending and along the circumferential direction arranging; With the nut that pushes the flexible pipe retention tab of described sleeve on being screwed to described joint and when fastening towards described flexible pipe, wherein, the outer periphery of the ring in being attached to described nut or inner circumference edge or the recess that formation is in axial direction extended among both, and described recess plays the fluid-evacuation path.

The 5th invention is characterised in that in a kind of flexible pipe connected member, this flexible pipe connected member comprises: insert the columnar joint in the flexible pipe; Be assemblied on the outer periphery of described flexible pipe and be provided with the sleeve of a plurality of flexible pipe retention tabs of in axial direction extending and along the circumferential direction arranging; With the nut that pushes the flexible pipe retention tab of described sleeve on being screwed to described joint and when fastening towards described flexible pipe, wherein, in the inner circumference edge of described nut, form the recess that in axial direction extends, and described recess plays the fluid-evacuation path.

Beneficial effect of the present invention

According in first to the 5th invention each, owing to after sleeve is assembled in the nut, can or encircle the integrally formed fluid-evacuation path that extends continuously along axial direction with sleeve, nut, so do not need to form the special drill technology of fluid-evacuation path.

Description of drawings

Fig. 1 is first embodiment's a perspective exploded view.

Fig. 2 is the perspective view of first embodiment's sleeve.

Fig. 3 is first embodiment's a decomposition side view.

Fig. 4 is first embodiment's the decomposition section along axial direction.

Fig. 5 is the perspective exploded view that first embodiment is shown, and wherein flexible pipe passes nut, and the traversing through end of flexible pipe is assembled in the sleeve.

Fig. 6 is the axial, cross-sectional view that first embodiment is shown, and wherein flexible pipe passes nut, and the traversing through end of flexible pipe is assembled in the sleeve.

Fig. 7 is the perspective view that first embodiment is shown, and shows a stage of nut and connected member body engages.

Fig. 8 is the axial, cross-sectional view that first embodiment is shown, and shows the above-mentioned stage of nut and connected member body engages.

Fig. 9 is the perspective view that first embodiment is shown, show nut with the connected member body engages to a certain degree stage.

Figure 10 is the axial, cross-sectional view that first embodiment is shown, show nut with the connected member body engages to a certain degree stage.

Figure 11 is the perspective view that first embodiment is shown, and shows the stage that nut has meshed fully with the connected member main body.

Figure 12 is the axial, cross-sectional view that first embodiment is shown, and shows the stage that nut has meshed fully with the connected member main body.

Figure 13 is the end view drawing that first embodiment is shown, and shows the nut that meshes fully with the connected member main body.

Figure 14 is the axial, cross-sectional view of second embodiment's assembled state.

Figure 15 is the perspective view of second embodiment's ring.

Figure 16 is the sectional view of second embodiment's ring.

Figure 17 is the axial, cross-sectional view of the 3rd embodiment's assembled state.

Figure 18 is the perspective view of the 3rd embodiment's ring.

Figure 19 is the sectional view of the 3rd embodiment's ring.

Figure 20 is the axial, cross-sectional view of the 4th embodiment's assembled state.

Figure 21 is the perspective view of the 4th embodiment's ring.

Figure 22 shows the 4th embodiment, and is the sectional view of ring.

Figure 23 is the axial, cross-sectional view of the 5th embodiment's assembled state.

Embodiment

In first embodiment shown in Fig. 1～13, flexible pipe H is linked to the joint N that is arranged in the connected member main body A.Sleeve S, ring R and nut B are arranged for the member that flexible pipe H and joint N are linked together.

Flexible pipe H comprises two layers, and is inserted with reinforcing fiber f between two layers.

The connected member main body A has the bolt element 1 that is used to be linked to predetermined member or device etc., and is formed with the cylindrical shape outside thread element 2 that is screwed among the nut B in a side opposite with bolt element 1.

Joint N is formed on the central part of the cylinder of outside thread element 2.Joint N extends into to have along axial direction and cylindrical shape outside thread element 2 at a distance of the abundant front end of distance.Joint N has the external diameter that equals or be slightly larger than the internal diameter of flexible pipe H, so that when joint N inserts among the flexible pipe H, joint N just in time is assembled among the flexible pipe H.In other words, flexible pipe H and joint N have a kind of like this size relationship, make joint N to insert in the hole under the situation that is not forced to push, and just in time are assembled in the hole and can not break away from the hole easily.

Sleeve S comprises the annulus element 3 that is arranged on near-end as shown in Figure 2.Annulus element 3 has the joint N that makes that is formed on its center can be smoothly and the hole 3a that just in time inserts and the outstanding slightly annular protrusion 3b along axial direction from its outer periphery.As shown in Figure 8, annular protrusion 3b has external diameter in the cylinder that is assembled to outside thread element 2 and the internal diameter more bigger than the external diameter of flexible pipe H.

Annulus element 3 has the seam that extends along axial direction at a position.By annulus element 3 is designed to open from seam, flexible pipe H can be inserted into, and the actual increase of diameter of annulus element 3 helps the insertion of flexible pipe H simultaneously.Can in the annulus element 3 of sleeve S, form groove, to strengthen the insertion ability of flexible pipe H.

Annular protrusion 3b has a plurality of flexible pipe retention tabs 4 of extending and along the circumferential direction arranging along axial direction.The flexible pipe retention tab 4 that is in normal state shown in Fig. 1,2 is reverse taper, and external diameter is along increasing away from the direction of annulus element 3 front end towards them.Suppose all flexible pipe retention tabs 4 as a unit, flexible pipe retention tab 4 these unit are counted as a cylinder, and its diameter increases gradually towards front end, and the gap is formed between the adjacent flexible pipe retention tab 4 and towards front end and broadens.

As above the flexible pipe retention tab 4 of Gou Chenging is shunk along internal diameter, so that gap turn narrow between the flexible pipe retention tab 4 so that disappearance.Therefore, closely contact takes place in adjacent flexible pipe retention tab 4 each other so that flexible pipe retention tab 4 be combined to form tapered cylinder (seeing Figure 12).

In addition, inclined-plane 4a extends at the upper edge, relative bight in the outside of each flexible pipe retention tab 4 axial direction.When adjacent flexible pipe retention tab 4 came in contact each other, the adjacent inclined-plane 4a combination of each flexible pipe retention tab 4 was to form fluid-evacuation path of the present invention (seeing Figure 13).Therefore, in first embodiment, so the quantity of the fluid-evacuation path that forms equals the quantity of flexible pipe retention tab 4.

In all cases, because first embodiment's inclined-plane 4a is incorporate with the shape of each flexible pipe retention tab 4, so inclined-plane 4a can be integrally formed by molded sleeve S and flexible pipe retention tab 4.In other words, form the fluid-evacuation path under can be in need not the be the sort of situation of carrying out special boring processing as prior art.

A pair of lug 4b is outstanding along internal diameter direction from the part of the close front end of each flexible pipe retention tab 4.When all flexible pipe retention tabs 4 all when internal diameter direction shrinks, lug 4b protrudes into the flexible pipe H that inserts among the sleeve S, prevents the function that flexible pipe H comes off with performance from sleeve S.Lug 4b is paired with each other, so that the more effective function that prevents to break away to be provided.Therefore, the quantity of lug can be determined according to being used to lock required active force.

Protrude into the zone of flexible pipe H at lug 4b, flexible pipe H presses joint N partly, as shown in figure 12.Therefore, sealing function in this zone be effectively played.

Ring R is assemblied on the outer periphery of sleeve S, and has tapered portion 5a, and tapered portion 5a is formed on ring R and is assemblied in the opening side of facing sleeve S when sleeve S goes up.Tapered portion 5a has the diameter that increases gradually towards sleeve S.When the maximum diameter of tapered portion 5a is in normal state shown in Figure 1 greater than flexible pipe retention tab 4 by the maximum diameter of the cylinder that is combined to form of all flexible pipe retention tabs 4 of sleeve S.Therefore, by the front end of flexible pipe retention tab 4 being inserted the tapered portion 5a of ring R, all flexible pipe retention tabs 4 are introduced among the ring R naturally, and the diameter of flexible pipe retention tab 4 reduces gradually simultaneously.

The inside diameter with tapered portion 5a adjacency of ring R forms fastening retainer 5b.The internal diameter of fastening retainer 5b is maintained the flexible pipe retention tab 4 that makes insertion and keeps each other the closely required size of contact.Therefore, flexible pipe retention tab 4 is inserted passed tapered portion 5a, further will encircle R then and be assembled to sleeve S upward (seeing Figure 12, Figure 13), closely contact takes place in adjacent flexible pipe retention tab 4 each other.

Notice that the internal diameter of the fastening retainer 5b of ring R is greater than the external diameter of flexible pipe H, so keep gapped 7 (seeing Fig. 6, Fig. 8, Figure 10, Figure 12) between fastening retainer 5b and flexible pipe H.

Nut B has inner screw member 6a and ring segment 6b, inner screw member 6a form as shown in Figure 4 at one end open part with outside thread element 2 engagement, and ring segment 6b is formed on the other end opposite with inner screw member 6a and radially outstanding.Ring segment 6b is maintained when ring R inserts among the nut B and comes in contact required size with the ring-shaped step 5c that is formed on the outside of encircling R.

Below, with describing flexible pipe H is linked to the process of connected member main body A and the structure of binding.

At first, will encircle and insert among the nut B, and flexible pipe H be inserted pass nut B then with ring R.Then, the traversing through end of flexible pipe H is assembled among the sleeve S that is under the normal state as shown in Figure 5 and Figure 6.Thus, the opening of flexible pipe H just in time aligns with the hole 3a of annulus element 3.

Then, make joint N pass hole 3a, then joint N is pressed among the flexible pipe H, the sleeve S that will have flexible pipe H then inserts in the cylinder of outside thread element 2.

When keeping this state, make the inner screw member 6a of nut B and 2 engagements of outside thread element, and tightening nut B (seeing Fig. 9, Figure 10) gradually.In the process of tightening nut B by this way, the ring-shaped step 5c of ring segment 6b pushing ring R is so that ring R also is forced to along the fastening direction of nut B is moved.

R moves as described above along with ring, and flexible pipe retention tab 4 is imported among the fastening retainer 5b of ring R.Therefore, the diameter of the cylinder that is made of all flexible pipe retention tabs 4 reduces, so that lug 4b protrudes among the flexible pipe H.Because lug 4b protrudes among the flexible pipe H, from sleeve S, come off so prevented flexible pipe H.Protrude into zone among the flexible pipe H at lug 4b, as shown in figure 12, flexible pipe H partly, strongly is pressed against on the joint N.Therefore, brought into play sealing function in this zone.

When the inner screw member 6a of nut B with the outside thread element 2 of joint N fully and securely after the engagement, all adjacent flexible pipe retention tabs 4 closely contact each other with the formation cylinder, and the adjacent inclined-plane 4a combination of each flexible pipe retention tab 4 is to form the recess (seeing Figure 12, Figure 13) as the fluid-evacuation path.

When the connected member main body A was linked to flexible pipe H by this way, for example, if flexible pipe H take place to worsen and lacks flexibility, then the sealed nature in the zone that is pressed into of lug 4b also worsened.At this moment, fluid leaks between flexible pipe H and joint N easily.If fluid leaks, then fluid flows in the cylinder that is made of flexible pipe retention tab 4, and amount of leakage is big more, and then the pressure in the cylinder is high more.Yet, because between the adjacent flexible pipe the retention tab 4 or zone between the end face of the annulus element 3 of sleeve S and joint N is not by special seal, so fluid is outside these gaps flow to the cylinder that is made of flexible pipe retention tab 4.

So the fluid that leaks from cylinder is directed to the fluid-evacuation path that is combined to form by the inclined-plane 4a of adjacent flexible pipe retention tab 4, then outside gap 7 is disposed to nut B.

Note, owing between the adjacent flexible pipe the retention tab 4 or gap that forms between the end face at the annulus element 3 of sleeve S and joint N by member each other physics contact and form, so this gap is greater than the gap of almost nil as the interlayer of multi-layer flexible pipe H (closely contact).

Therefore, when the pressure in the cylinder that is made of flexible pipe retention tab 4 increased, the fluid in the cylinder did not flow in the interlayer gap of flexible pipe H, but is directed into like that in the fluid-evacuation path as mentioned above.

For first embodiment's fluid-evacuation path, use be the inclined-plane 4a that is formed at the relative both sides of each flexible pipe retention tab 4, but the inclined-plane also can form cambered surface.In addition, the inclined-plane also can only be formed on the bight of flexible pipe retention tab 4, and the axial direction along flexible pipe retention tab 4 in each that perhaps can be in the two-phase dihedral portion of flexible pipe retention tab 4 extends the L-shaped recess in cross section.

In a word, as long as the fluid-evacuation path can be one-body molded with sleeve S, then can be any form.

Nut B can be the form of being rotated by hand, also can be the form of being rotated by instruments such as for example spanners.

Figure 14～Figure 16 shows second embodiment, and that wherein link is the flexible pipe H that is provided with reinforcing fiber f between two layers, and is provided with joint N (being provided with in the connected member main body A), sleeve S, ring R and nut B.Second embodiment is different from first embodiment's part only for be formed with a plurality of recesses 8 in ring R.Identical among the structure of other parts and first embodiment.Therefore, will describe the recess 8 of ring R in a second embodiment, and other parts will adopt first embodiment's description.

Described a plurality of recess 8 along the circumferential direction is formed in the internal surface of fastening retainer 5b as the inner peripheral surface of ring R, and extends along axial direction, shown in Figure 15,16.This recess 8 forms the fluid-evacuation paths, and when ring R is assembled into as shown in Figure 14 the inside of nut B is released into the outside.

In a second embodiment, two-phase dihedral portion at the outer surface of each flexible pipe retention tab 4 also is formed with the inclined-plane 4a that extends along axial direction, and the inclined-plane 4a of adjacent flexible pipe retention tab 4 is combined to form fluid-evacuation path (annotate: later half sentence is English may be wrong, please refer to [0036] first of Japanese original text).

In a second embodiment, the fluid-evacuation path that constitutes by the inclined-plane 4a of adjacent flexible pipe retention tab 4 is used for using with the fluid-evacuation path that is made of the recess 8 that is formed at ring R is collaborative.In this, second embodiment mainly uses the fluid-evacuation path that is made of recess 8, and the fluid-evacuation path that less important use is made of inclined-plane 4a.

Between flexible pipe retention tab 4 because of with first embodiment identical former thereby fluid that take place to leak be directed in the fluid-evacuation path that constitutes by recess 8, then outside gap 7 is disposed to nut B.

In addition, in a second embodiment, because the inclined-plane 4a of flexible pipe retention tab 4 also forms the fluid-evacuation path, the fluid that the combination of recess 8 formed fluid-evacuation paths and the formed fluid-evacuation path of inclined-plane 4a allows to leak is disposed to outside the nut B, but recess 8 formed fluid-evacuation paths just can be brought into play the effect of fluid discharging separately fully.

In all cases, because it is integrally formed with ring R to form the recess 8 of fluid-evacuation path among second embodiment, so do not need as prior art, to form aperture.

Figure 17～Figure 19 shows the 3rd embodiment, wherein forms the recess 9 corresponding to the recess among second embodiment 8 in the outer periphery of ring R, and identical among the structure of other parts and first embodiment.Therefore, in the 3rd embodiment's description, will describe the recess 9 of ring R, and other parts will adopt first embodiment's description.

In the 3rd embodiment, a plurality of recesses 9 that extend along the axial direction that encircles R along the circumferential direction form in the outer surface of ring R, and extend to the surface of ring-shaped step 5c.This recess 9 forms the fluid-evacuation paths, and when ring R is assembled into as shown in Figure 17 the inside of nut B is released into the outside.Therefore, the fluid that flow in the nut B passes this fluid-evacuation path, and is disposed to outside the nut B.

Because the 3rd embodiment's recess 9 is integrally formed with ring R, so do not need to form aperture as prior art.

In the 3rd embodiment, because the inclined-plane 4a of flexible pipe retention tab 4 also forms the fluid-evacuation path, the fluid that the combination of recess 9 formed fluid-evacuation paths and the formed fluid-evacuation path of inclined-plane 4a allows to leak is disposed to outside the nut B, but recess 9 formed fluid-evacuation paths just can be brought into play the effect of fluid discharging separately fully.

Figure 20～Figure 22 shows the 4th embodiment, wherein in the inner peripheral surface of the opening end opposite, form recess 10 corresponding to the recess among second embodiment 8 with tapered portion 5a, the shape of this inner peripheral surface is different from the shape among second embodiment, and identical among the structure of other parts and first embodiment.Therefore, in the 4th embodiment's description, will describe the recess 10 of ring R, and other parts will adopt first embodiment's description.

In the 4th embodiment, the inner peripheral surface of the opening end opposite with the tapered portion 5a of ring R forms the conical surface 11 that diameter outwards increases gradually along axial direction.The conical surface 11 is along the diameter of the outer end of the axial direction external diameter greater than flexible pipe H.

In addition, the recess 10 of formation fluid-evacuation path is formed in the conical surface 11.The inner and the interface branch between the fastening retainer 5b at the axial direction of the conical surface 11 are formed with the retention tab 12 of extending along the internal diameter of ring R.The front end that is assembled to the flexible pipe retention tab 4 of the sleeve S among the nut B engages with retention tab 12.

The minimum diameter of retention tab 12 approximates the external diameter of flexible pipe H.Therefore, when in retention tab 12, inserting flexible pipe H, be at full tilt to wherein pushing flexible pipe H, but because the conical surface 11 that forms as described above, flexible pipe H can be guided to the part of the minimum diameter of retention tab 12 smoothly.

In the 4th embodiment who so constitutes, when ring R is assembled into as shown in figure 20, the inside of nut B is released into the outside via the recess 10 that forms the fluid-evacuation path, passes the recess 10 that forms the fluid-evacuation path and is disposed to outside the nut B so that flow to the fluid of nut B inside.

Because the 4th embodiment's recess 10 is integrally formed with ring R, so do not need to form aperture as prior art.

In the 4th embodiment, because the inclined-plane 4a of flexible pipe retention tab 4 also forms the fluid-evacuation path, the fluid that the combination of recess 10 formed fluid-evacuation paths and the formed fluid-evacuation path of inclined-plane 4a allows to leak is disposed to outside the nut B, but recess 10 formed fluid-evacuation paths just can be brought into play the effect of fluid discharging separately fully.

In the 4th embodiment, owing to be formed with retention tab 12 among the R, so when even flexible pipe H is subjected to active force along the direction that comes off from ring R, the flexible pipe retention tab 4 of sleeve S also engages with retention tab 12, comes off to prevent flexible pipe at ring.For example, if flexible pipe H takes place to worsen and lack flexibility, then the flexible pipe possibility is shunk along the direction of the diameter of the flexible pipe retention tab 4 that reduces sleeve S, thereby flexible pipe H and sleeve S may come off from nut B.Yet this problem can not take place in the 4th embodiment, because be provided with retention tab 12 as mentioned above.

Figure 23 shows the 5th embodiment, the ring R that wherein uses in first to fourth embodiment is omitted, in the internal surface of nut B, be formed with the recess 13 that forms the fluid-evacuation path, and identical among the structure of connected member main body A, joint N and sleeve S and first embodiment.

Can know from Figure 23 and to find out that recess 13 is formed in the inner peripheral surface of the opening end that inserts for flexible pipe H.

Recess 13 forms the fluid-evacuation paths, and when nut B is assembled to the connected member main body A as illustrated in fig. 23 the inside of nut B is released into the outside.Therefore, the fluid that flow to nut B inside passes this fluid-evacuation path, and is disposed to outside the nut B.

Because the 5th embodiment's recess 13 is integrally formed with nut B, so do not need to form aperture as prior art.

Reference numerals list

H: flexible pipe

N: joint

S: sleeve

4: the flexible pipe retention tab

4a: inclined-plane

B: nut

8: the recess that forms the fluid-evacuation path

9: the recess that forms the fluid-evacuation path

10: the recess that forms the fluid-evacuation path

13: the recess that forms the fluid-evacuation path

Claims

1. flexible pipe connected member comprises:

Insert the columnar joint in the flexible pipe;

Sleeve is assemblied on the outer periphery of described flexible pipe and is provided with a plurality of flexible pipe retention tabs of in axial direction extending and along the circumferential direction arranging; With

Nut, nut pushes the flexible pipe retention tab of described sleeve towards described flexible pipe when nut is screwed on the described joint and is fastening,

Wherein, when the fastened so that flexible pipe retention tab adjacent one another are of described sleeve comes in contact each other, described flexible pipe retention tab combination and on the outer periphery of described sleeve, form the fluid-evacuation path that in axial direction extends continuously.

2. flexible pipe connected member as claimed in claim 1, wherein, described fluid-evacuation path is the axial valley that is combined to form by adjacent flexible pipe retention tab.

3. flexible pipe connected member as claimed in claim 2, wherein, described axial valley is made of inclined-plane or the cambered surface that at least one side in the relative both sides of the axial direction of each flexible pipe retention tab forms.

4. flexible pipe connected member comprises:

Insert the columnar joint in the flexible pipe;

Wherein, the outer periphery of the ring in being attached to described nut or inner circumference edge or the recess that formation is in axial direction extended among both, and described recess plays the fluid-evacuation path.

5. flexible pipe connected member comprises:

Insert the columnar joint in the flexible pipe;

Be assemblied on the outer periphery of described flexible pipe and be provided with the sleeve of a plurality of flexible pipe retention tabs of in axial direction extending and along the circumferential direction arranging; With

Push the nut of the flexible pipe retention tab of described sleeve on being screwed to described joint and when fastening towards described flexible pipe,

Wherein, in the inner circumference edge of described nut, form the recess that in axial direction extends, and described recess plays the fluid-evacuation path.