CN1421634A - Inserting pipe joint - Google Patents
Inserting pipe joint Download PDFInfo
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- CN1421634A CN1421634A CN 02144245 CN02144245A CN1421634A CN 1421634 A CN1421634 A CN 1421634A CN 02144245 CN02144245 CN 02144245 CN 02144245 A CN02144245 A CN 02144245A CN 1421634 A CN1421634 A CN 1421634A
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- bellows
- nut part
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- adapter body
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Abstract
The invention provides an insertion type tube fitting capable of certainly sealing and attaching a bellows pipe only by pressing a nut member. The insertion type tube fitting for connecting the bellows pipe is provided with a coupling body of which an inner wall is stepped; a ring-like nut member longitudinally slidably mounted to a tip end of the coupling body; a packing member provided on the stepped part of the inner wall surface of the coupling body; a ring-like stopper member butted to a tip end of the bellows pipe when the bellows pipe is inserted and inwardly inserting the bellows pipe while it is elastically expanded/contracted in a radial direction of the bellows pipe; a ring-like retainer which presses the packing member upon insertion of the nut member and of which one end side can be elastically expanded/contracted in a center direction of the bellows pipe; and a stop ring member for fixing the nut member when the nut member is inserted into the coupling body side.
Description
Technical field
The present invention relates to the good inserting type pipe joint of a kind of sealing, mainly is that bellows is inserted in the adapter body, and then pressed-in nut parts only, can become the inserting type pipe joint that has excellent sealing and can prevent to deviate from.
Background technique
In general, as the inserting type pipe joint of the flexible tube that connects fluid such as inflow gas, for example known have by No. 2565469 disclosed joint such as communique of model utility communique.Figure 20 is the sectional drawing that is illustrated in the disclosed pipe joint of above-mentioned communique, as shown in the figure, this pipe joint, has the pipe box 4 that is formed with the attachment hole 2 that inserts the bellows F that is flexible, fixed component 6 with the opening end that is screwed on this pipe box 4, and the initial position that is screwed into for decision said fixing parts 6 positioning element that slightly is the C font 8 of between the two end part of above-mentioned pipe box 4 and said fixing parts 6, packing into, with in the inside of the attachment hole 2 of above-mentioned pipe box 4 with radial configuration, inner peripheral surface forms concavo-convex a plurality of positioning rings 10 and dwindles the mode of internal diameter with resiliently mounted holding member 12 so that these a plurality of positioning rings 10 enlarge corresponding to the outer circumferential face of above-mentioned bellows F.And, after being inserted into above-mentioned bellows F between a plurality of positioning ring 10,, this positioning ring 10 is pressed to the bottom side of attachment hole 2 by unloading positioning element 8, the screw section of fixed component 6 being screwed into fixing, this bellows F is fixed on the pipe box 4.
Yet, on above-mentioned pipe joint in the past, be inserted into bellows F in the attachment hole 2 after, when after unloading positioning element 8, making fixed component 6 be fixed on the pipe box 4, use not shown instrument to carry out these operations.Therefore, therefore the operation that still has tool using to fix, for example has to insert and forgets behind the bellows F fixing and the problems such as situation of leaking take place.In addition, the operation that unloads positioning element is arranged, and can not connect simply.And then the elasticity holding member of fixing a plurality of positioning ring is necessary, constructs with regard to more complicated like this.
Here, in the former application of the applicant (the flat 11-316155 of special Willing number), the inserting type pipe joint that can only connect simply to insert bellows is disclosed.Yet though the advantage that has only insertion to connect under the situation of this pipe joint has complicated slightly structure inner because spring etc. is set, this is to need the place of improveing.
In addition, as other pipe joint in the past, known have open the spy that flat 5-164280 communique, spy are opened flat 5-312289 communique, the spy opens flat 6-58474 communique and the spy opens invention disclosed in flat 6-58475 communique etc.For the pipe joint of representing in each open example at these, whichever has used its diameter can flexible scalable annular spring all in the form of a ring, is lock state by making its recess that is embedded into bellows, stops bellows to be extracted and comes off.
Yet at this moment,, must be useful on the parts that keep the hole enlargement state in pipe joint, the problem of the number that increases parts is arranged for above-mentioned annular spring is the structure of packing into the state of hole enlargement.In addition, the applicant proposes to have the inserting type pipe joint that addresses the above problem a little in special Willing 2001-220433, but the further improvement point of having discovered by thereafter.
The present invention is conceived to above problem points, and can addresses this problem effectively a little and the creation of carrying out.The purpose of this invention is to provide a kind of bellows that makes and be inserted in the adapter body, further can seal reliably and pack into only to be pressed into nut part, and simple structure, safety inserting type pipe joint.
Summary of the invention
The present invention 1 inserting type pipe joint, be to have the inserting type pipe joint that the bellows of the jog that is the crest shape is connected with outer circumferential face, it is characterized by, have: the pipe patchhole and the stepped adapter body of internal face that are formed for inserting above-mentioned bellows, nut part with the ring-type that can install slidably at its length direction of front end edge of above-mentioned adapter body, sealed member with the above-mentioned end difference of the internal face that is arranged on above-mentioned adapter body, with the base end part side that is arranged on above-mentioned sealed member and when inserting above-mentioned bellows and the preceding end in contact of above-mentioned bellows, its part makes above-mentioned bellows insert the limit position part that leads to inboard ring-type on flexibly scalable limit, the radial direction limit of above-mentioned bellows, and sandwich and pushing above-mentioned sealed member between above-mentioned nut part and the sealed member and when inserting above-mentioned nut part, simultaneously one distolateral to the central direction of above-mentioned bellows can be flexibly scalable ring-type the positioning ring parts and be located on the above-mentioned nut part, and when above-mentioned nut part is inserted into above-mentioned adapter body side, the stop ring parts of fixing above-mentioned nut part; Above-mentioned nut part when it is inserted above-mentioned adapter body, contacts with above-mentioned positioning ring parts, and it is out of shape to the undergauge direction.
Thus, in the time of in bellows is inserted into adapter body, this bellows is plugged in the positioning ring parts and the sealed member of logical ring-type, its front end contacts with limit position part, a logical crest or a plurality of crest are inserted in the diameter limit of the scalable limit position part in limit, interior all ends of limit position part, be the state that is embedded in the bellows recess, with the further pressed-in nut parts of this state the time, its front end touches the positioning ring parts and dwindles its diameter, this positioning ring parts one end is the state that is embedded in the bellows recess, and by the stop ring parts nut part is fixed on the adapter body side, finishes thus to insert and fixes.When bellows being applied when extracting the power of direction with this state, limit position part and sealed member are integratedly in that to extract direction mobile slightly, apply and make the positioning ring parts to extracting the power that direction moves, perhaps the end owing to the positioning ring parts is embedded in the recess of bellows, make the positioning ring parts to extracting the power that direction moves so apply, at this moment, apply the power that the positioning ring parts that contact with nut part dwindle its diameter, produce the effect that stops bellows to be extracted, thereby bellows is inserted in the adapter body with fully embedding, only, just can connect bellows with the state of keeping good sealing property with the pressed-in nut parts.Therefore, can not make the structure of inserting type pipe joint complicated like that, and the attended operation of bellows is carried out simple and reliablely.
At this moment, for example defined in the present invention 2, above-mentioned positioning ring parts are by with the front lip portion cylindraceous of the inwall sliding contact of above-mentioned nut portions be when zero load laterally that the thick rear protuberance of hole enlargement state constitutes.
In addition, for example defined in the present invention 3, in the inner face side of above-mentioned rear protuberance, be formed with the expansion that when undergauge, contacts and drive the conical surface, and side is formed with the undergauge conical surface that contacts with above-mentioned nut part outside with above-mentioned bellows.
In addition, for example defined in the present invention 4,, be provided with a plurality of groovings that form in its length direction incision except the part of above-mentioned front lip portion end in above-mentioned rear protuberance and above-mentioned front lip portion.
In addition, for example defined in the present invention 5, above-mentioned limit position part by the ring portion that is fixed on above-mentioned adapter body side, and is located at the inboard of this ring portion and contact a plurality of locking piece formation that produces resiliently deformable with the outer circumferential face of the above-mentioned bellows that inserts.
In addition, for example defined in the present invention 6, on above-mentioned nut part, be provided with when above-mentioned adapter body is inserted, for prevent more than the established amount insertion and at the distance member that can load and unload, and on the inwall of above-mentioned adapter body, be formed with when inserting above-mentioned nut part, allow the hole enlargement of above-mentioned stop ring parts and remove the sealed hole enlargement end difference of above-mentioned nut part and above-mentioned adapter body with the state that unloads above-mentioned distance member.
Thus, in order to implement once more, and in case when decomposing the inserting type pipe joint assembled, above-mentioned distance member is unloaded and by this nut part is further gone into to the adapter body side pressure from above-mentioned nut part, and make inner stop ring parts be embedded into hole enlargement end difference and hole enlargement himself, can remove the sealed of nut part and adapter body thus.
In addition, for example defined in the present invention 7, above-mentioned sealed member is by the fire-resistant Sealing that expands by high temperature and have bubble-tight gas-tight seal to constitute, between above-mentioned fire-resistant Sealing and above-mentioned gas-tight seal, be provided with circular expansion and stop ring, and, be formed with the mobile prevention end difference that moves that the above-mentioned expansion when stoping above-mentioned fire-resistant Sealing to expand stops to encircle at the inwall of above-mentioned adapter body.
Thus, during high temperature when sealed member is exposed to fire, the fire-resistant Sealing of its part expands, but at this moment, by the effect that stops to encircle by the mobile circular expansion that stops end difference to be fixed, fire-resistant Sealing can prevent to make the slit between bellows and the inserting type pipe joint to expand out of orderly, makes it can concentrate on a place, even also can keep high leak tightness well when fire etc. thus.
In addition, for example defined in the present invention 8, end face at above-mentioned sealed member, be provided with when above-mentioned nut part inserts with the back end in contact of the front end of above-mentioned nut part or above-mentioned positioning ring parts and push above-mentioned sealed member, while and contact with above-mentioned nut part, perhaps be the sealing pressing component of the ring-type of approaching state with pressed state.
Thus, after the assembling of finishing bellows, when extracting when direction applies power at this bellows, even above-mentioned positioning ring parts are to move to extracting direction to a certain degree, above-mentioned sealing pressing component also can contact above-mentioned nut part and the sealing pressing component is moved hardly, thereby, because sealed member is pressed and maintains compressed state, so sealing can not degenerate, and can keep high leak tightness.
In addition, for example defined in the present invention 9, end face at above-mentioned sealed member, be provided with when inserting above-mentioned nut part, push the elastic packing pressing component that undergauge is carried out on above-mentioned sealed member limit with the front end of above-mentioned nut part or back end in contact, the limit of above-mentioned positioning ring parts, inwall in above-mentioned adapter body, the promising undergauge that makes above-mentioned elastic packing pressing component undergauge is set to be used the conical surface and makes the hole enlargement of above-mentioned elastic packing pressing component and the pressing component fixed groove fixed with the above-mentioned sealed member state of being pressed.
Thus, when the pressed-in nut parts, because the elastic packing pressing component embeds with the state of pushing the compression seal parts and is fixed in the pressing component fixed groove, thereby after the assembling of bellows is finished, even when this bellows is applied the power of extracting direction,, but, sealed member maintains the state of compression owing to being pressed by the effect of above-mentioned elastic packing pressing component, so sealing can not degenerate, and can keep high leak tightness.
In addition, for example defined in the present invention 10, above-mentioned sealed member, by by the expandable fire-resistant Sealing of high temperature and have bubble-tight gas-tight seal to constitute, between above-mentioned fire-resistant Sealing and above-mentioned gas-tight seal, be provided with circular expansion and stop ring, simultaneously, be provided with by hole enlargement elastic packing pressing component at the inwall of above-mentioned adapter body, and be provided with that the state that is pressed with above-mentioned sealed member makes above-mentioned hole enlargement elastic packing pressing component hole enlargement and the hole enlargement pressing component fixed groove fixed at the inwall of above-mentioned adapter body to the compression of undergauge direction.
Thus, when the pressed-in nut parts, owing to being embedded in the hole enlargement pressing component fixed groove with the state of pushing the compression seal parts, hole enlargement elastic packing pressing component is fixed, thereby after the assembling of bellows is finished, even when this bellows is applied the power of extracting direction,, also can push the state that maintains compression to sealed member by the effect of above-mentioned hole enlargement elastic packing pressing component, sealing can not degenerate, and can keep high leak tightness.
In addition, for example defined in the present invention 11,, be formed with the anticreep conical surface in the end of above-mentioned nut part.
Description of drawings
Fig. 1 is the inserting type pipe joint of the expression embodiment of the invention 1 and the sectional view of bellows.
Fig. 2 is the stereogram of the stop ring parts of expression C font.
Fig. 3 is the stereogram of the stop component of expression ring-type.
Fig. 4 is the figure of expression stop component.
Fig. 5 is the stereogram of expression positioning ring parts.
Fig. 6 is the explanatory drawing of the action of expression positioning ring parts.
Fig. 7 be the expression embodiment of the invention 1 insert the process chart of the process of bellows to inserting type pipe joint.
Fig. 8 is the sectional view of expression embodiments of the invention 2.
Fig. 9 is the stereogram of expression distance member.
Figure 10 is the decomposition process figure of expression inserting type pipe joint.
Figure 11 is the sectional drawing of the expression embodiment of the invention 3.
Figure 12 is the stereogram that the circular expansion of expression stops to encircle.
Figure 13 is the embodiment of expression front and embodiment 3 the different explanatory drawing of action when fire.
Figure 14 is the phantom of expression embodiments of the invention 4.
Figure 15 is the sectional view of the sealing pressing component of expression ring-type.
Figure 16 be expression embodiment of front and embodiment 4 apply withdrawing power the time the different explanatory drawing of action.
Figure 17 is the phantom of the action of the expression embodiment of the invention 5.
Figure 18 is the stereogram of the elastic packing pressing component of expression C font.
Figure 19 is the figure of the variation of the expression embodiment of the invention 5.
Figure 20 is a sectional view of representing pipe joint in the past.
Among the figure: 16-inserting type pipe joint, 18-recess, 20-protuberance, the 26-adapter body, 30-nut part, 40-stop ring parts, the 42-sealed member, 42A-gas-tight seal, the fire-resistant Sealing of 42B-, the 44-limit position part, 46-ring portion, 48-locking piece, 50-positioning ring parts, 52-front lip portion, 54-rear protuberance, the conical surface is driven in the 54B-expansion, the 54C-undergauge conical surface, and 70-expands end difference, the 72-distance member, 74-expansion stopping ring, 76-moves the prevention end difference, and 80-seals pressing component, 84-elastic packing pressing component, the 86-undergauge conical surface, 88-pressing component fixed groove, F-bellows.
Embodiment
Below an embodiment of inserting type pipe joint of the present invention is elaborated with reference to accompanying drawing.
(embodiment 1)
At first embodiments of the invention 1 are described.
Fig. 1 is the inserting type pipe joint of the expression embodiment of the invention 1 and the sectional view of bellows, Fig. 2 is the stereogram of the stop ring parts of expression C font, Fig. 3 is the stereogram of the stop component of expression ring-type, and Fig. 4 is the figure of expression stop component, and Fig. 5 is the stereogram of expression positioning ring parts.Fig. 6 is the action specification figure of positioning ring parts, Fig. 7 be the expression embodiment of the invention 1 insert the process chart of the process of bellows to inserting type pipe joint.
As shown in the figure, this inserting type pipe joint 16, it is the member that for example connects the flexible bellows F that constitutes by stainless steel, the outer circumferential face of this bellows F is formed wavy recess 18 and protuberance 20, in addition, remove beyond the front end of connection, cover by the coating layer 22 that constitutes by the soft resin of soft polyethylene etc. etc.
Above-mentioned inserting type pipe joint 16 is mainly by internal face nut part 30 stepped, that be formed with adapter body 26 of managing patchhole 24 and the ring-type that is formed with pipe inserting hole 28 at the center is constituted.Above-mentioned nut part 30 for example forms ring-type by brass etc., and the heart has the pipe inserting hole 28 that can insert above-mentioned bellows F size therein.In the outside of this nut part 30, for example be cylindric or the hexagonal column.The base end part side of this nut part 30 at the front end of above-mentioned adapter body 24, can embed slidably along its length direction, by the water-stop O type ring 34 that the elastomer that sandwiches by circular ring-type constitutes, makes its inside can not immerse water in the engagement stepped-portion of this outer circumferential face.
On the inner peripheral surface of the forward end of this nut part 30, be incorporated with the water sealing member 36 that the elastomer by circular ring-type constitutes along its all direction, carry out sealing in intimate contact with the coating 22 of the bellows F of the inner projection 36A that inserts this water sealing member 36, prevent from from the outside in pipe joint, to immerse corrosive water etc.
At the outer circumferential face of the terminal side of above-mentioned nut part 30, forming section annularly is the slot part 38 of rectangle, on this slot part 38, accommodates the stop ring parts 40 at the C font of a part of otch of the ring shown in Fig. 2.These stop ring parts 40 are that circular for example spring steel forms by section, and the state that compresses with undergauge is received in the above-mentioned slot part 38.Thereby these stop ring parts 40 are with the hole enlargement generation effect of this state.
End difference at the inwall of above-mentioned adapter body 26 is provided with sealed member 42.Sealing parts 42 are set with the fire-resistant Sealing 42B that the gas-tight seal 42A that the elastomer by rounded ring-type constitutes and the elastomer by circular ring-type that is provided with continuously in this forward end constitute.In addition, this fire-resistant Sealing 42B can not have elasticity yet, in addition, even be not circular, for example be the also passable of C word shape, and then, the position is set also can be provided with continuously with gas-tight seal 42A, in addition, also be not limited to the position of forward end.
This gas-tight seal 42A, for example by formations such as NBR (nitrile butadiene rubber), fluorine rubber, in addition, above-mentioned fire-resistant Sealing 42B, for example by the integrally formed elastomer of the rubber material of expanded graphite and NBR is constituted, following time of high temperature when being exposed to fire etc., the volumetric expansion of this fire-resistant Sealing 42B and sealed inside.And, when inserting bellows F, the inner peripheral surface limit implementation of above-mentioned two Sealing 42B, 42A is flexibly inserted this bellows F by flanging.
And, between the end difference of the inwall of the base end part of this gas-tight seal 42A and above-mentioned adapter body 26, sandwich the limit position part 44 of setting ring-type as shown in Figure 3 and Figure 4.The plan view of the limit position part of Fig. 4 (A) expression, Fig. 4 (B) has represented its sectional view.
This limit position part 44 constitutes with a plurality of locking piece 48 that uniformly-spaced is provided with along its all direction by the ring portion 46 that is fixed on above-mentioned adapter body 26 sides with in this inboard.Insert logical bellows F in the inboard of this ring portion 46, this locking piece 48 is according to being the angle θ of regulation, for example 45 degree ground settings to the central direction of ring portion 46, to the logical direction inclination of inserting of bellows F, and the internal diameter of its front end is set to littler than the diameter of the protuberance 20 of bellows F.
This limit position part 44 has the elasticity that is made of for example resin and metal.Thereby bellows F is when arriving the limit position part 44 of this ring-type, when touching above-mentioned locking piece 48, flexibly scalable, limit, limit inserts logical inboard.
And, between above-mentioned nut part 30 and above-mentioned sealed member 42, be provided with the positioning ring parts 50 of ring-type.These positioning ring parts 50 for example can be formed integral body by metals such as brass material, stainless steel materials, also can by resin and metal in conjunction with and form, as as shown in Fig. 5 and Fig. 6, by the front lip portion 52 of cylindrical body shape with on this end, by in pressed-in nut parts 30 integratedly, the rear protuberance 54 that contacts with the end face of above-mentioned fire-resistant Sealing 42B constitutes.Particularly, the length L 1 (with reference to Fig. 5) of the front lip portion 52 of above-mentioned cylindrical body shape, for example be set at about 5mm, simultaneously, be set at its outer diameter D 1 with the internal diameter of the base end part side of above-mentioned nut part 30 roughly the same or slightly littler than it, the outer circumferential face of this front lip portion 52, carry out sliding contact, carry out fixing here or support for the inwall of above-mentioned nut part 30.
In addition, the internal diameter of this front lip portion is set at bigger slightly, in this front lip portion 52, can inserts logical above-mentioned bellows F than the external diameter of the protuberance 20 of above-mentioned bellows F.Integrally formed a plurality of rear protuberance 54 in this front lip portion 52 with different by disclosed situation among the special Willing 2001-220433, is to the foreign side of radial direction, be inclination hole enlargement state laterally when zero load with opening.In addition, this rear protuberance 54 is thicker slightly, forms the projection 56 that extend the side in radial direction in its base end part side.The internal diameter of this projection 56 is set to bigger than the external diameter of the protuberance 20 of above-mentioned bellows F.And the end face 54A (with reference to Fig. 6) of the base end part side of this rear protuberance 54 is flat state, and this end face 54A docks with the end face of the forward end of above-mentioned fire-resistant Sealing 42B.And each rear protuberance 54 is that fulcrum can carry out scalable distortion to radial direction with the front lip portion 52 of above-mentioned ring-type.
And at the inner side surface of above-mentioned each rear protuberance 54, conical surface 54B (with reference to Fig. 6) is opened in the expansion that forms the recess 18 that is embedded into above-mentioned bellows F when its undergauge.And, the place ahead at the exterior side of this rear protuberance 54, be formed with when when pressed-in nut parts 30 and to bellows F, applying the power of extracting direction, contact, make this each rear protuberance 54 to the undergauge direction, promptly constitute flexibly diastrophic undergauge conical surface 54C to the central axis direction of this pipe joint 16 with the aftermentioned anticreep conical surface 60 that is located at above-mentioned nut part 30.In addition, here, the end of this nut part 30, when pushing positioning ring parts 50,, be not limited to the anticreep conical surface 60 as long as have the structure of the function of the diameter that dwindles positioning ring parts 50, for what kind of shape can, for example also can not the conical surface but have the curve form of R, or can the person be the end face of the ladder processing of multi-ladder also, and then also can be that only to make the end be the end face of vertical rectangular shaped of downcutting.
And, get back to Fig. 1, base end part at above-mentioned nut part 30, be formed with the anticreep conical surface 60 that tilts with predetermined angular along preceding extreme direction, at this axis direction with the angle of regulation, to the bellows F that finishes insertion along extracting when direction applies power, the above-mentioned undergauge conical surface 54C of above-mentioned positioning ring parts 50 contacts with this anticreep conical surface 60, and rear protuberance 54 is moved to axis direction.
In addition, on the inwall of the forward end of adapter body 26, the position of the stop ring parts 40 during corresponding to the not insertion of nut part 30 (before inserting), be formed with stop ring and hold recess 62, stride across the slot part 38 that this stop ring holds recess 62 and the nut part 30 relative with it and hold above-mentioned stop ring portion 40 between the two.And, above-mentioned stop ring holds the side, rear of recess 62, form the conical surface 62A that tilts to central direction along with the depths that enters adapter body 26, in pressed-in nut parts 30, make these stop ring parts 40 edges above-mentioned conical surface 62A and move the limit and flexibly make its undergauge.And inwall in the adapter body 26 of the position of leaving a little than the rear end of this conical surface 62A, formation is kept end difference 64 by the stop ring of the ring-type of hole enlargement, by this stop ring keep stop ring parts 40 that end difference 64 makes above-mentioned flexibly undergauge once more hole enlargement open, fix this nut part 30 (with reference to Fig. 7 (B)).
At this moment, stop ring keeps the degree of depth of end difference 64, be set to hold recess 62 with above-mentioned stop ring the degree of depth much at one, in addition, as the running length SL1 (with reference to Fig. 1) of the amount of being pressed into of nut part 30, be set to and above-mentioned stop ring hold recess 62 and above-mentioned stop ring keep between the end difference 64 distance much at one.
In addition, on the part of this adapter body 26, be provided with the through hole that runs through to this radial direction, on this through hole, see through gas to the outside internally, do not see through the breathability alternative pack 66 of solid and liquid but pack into.In addition, above-mentioned breathability alternative pack 66 not necessarily leaves no choice but be located at adapter body 26 sides, also can be arranged on nut part 30 sides the through hole place is set, or sandwich between adapter body 26 and nut part 30.
This breathability alternative pack 66, owing to see through gas from joint inside to the outside, so just in case F opens the hole by nail etc. and in the gas leakage on bellows, gap propagation between the coating 22 of the surface of bellows F and the resin that should outside be covered and gas is entered in the joint, this gas permeation breathability alternative pack 66 is ejected into the outside of pipe joint 16.Therefore after assembling bellows F, by will be in the part of the breathability alternative pack 66 of this pipe joint 16 near leak detector, the perforate that can easily detect bellows F be bad, and can prevent the gas accident in advance.
Below, describe with regard to the using method of the inserting type pipe joint of above formation.
At first, the worker is from state shown in Figure 1, the front end of bellows F inserted in the pipe patchhole 24 of the pipe inserting hole 28 that leads to nut part 30 and adapter body 26 and carried out such insertion.And when being pressed into bellows F, shown in Fig. 6 (A) and Fig. 7 (A), the front end of bellows F is inserted and to be led in the positioning ring parts 50 of ring-type, so flexibly with the contacting in interior week of sealed member 42, the while, its front end reached limit position part 44 places.And, by further insertion bellows F, make its front end flexibly push and expand a plurality of locking piece 48 of limit position part 44, insert simultaneously and lead to wherein, and then the front end of bellows F, contact with the part of the undergauge of adapter body 26 and stop its insertion.Express the state of a crest of the protuberance 20 of the front end that inserts bellows F in Fig. 7 (A), bellows F temporarily is fixed by limit position part 44 under this state.In addition, as the position of the undergauge end difference of adapter body 26 is retreated more, then can insert a plurality of protuberance (crest) and do not limit its quantity.
At this moment, the protuberance 20 of bellows F is whenever inserted logical crest for limit position part 44, because the worker experiences click, is inserted into the position of regulation so can judge bellows F, thereby, there is no need to be embodied as at bellows F and confirm the insertion amount and marking etc.
At this state, make bellows F try lightly to extract extracting direction, confirm that it is temporarily fixing by limit position part 44.
Then, shown in Fig. 7 (B), nut part 30 is pressed onto to almost both are very close to each other to the direction of insertion of adapter body 26 sides.At this moment, the anti-conical surface 60 that pulls out of the front end of nut part 30, shown in Fig. 6 (B), contact with the undergauge conical surface 54C of positioning ring parts 50, play the effect that its rear projection 54 flexibly is pressed into to the central direction shifting ground, its result, rear projection 54 are embedded in the recess 18 of bellows F, this part is firmly pushed fix.In addition, at this moment, positioning ring parts 50 are to being pressed into direction moving to a certain degree, because this end face 54A (with reference to Fig. 6) pushes sealed member 42 to compression direction, so sealing parts 42 are crimped into the outer circumferential face of bellows F, thus, can improve sealing.
In addition, in the time of with being pressed into of nut part 30, stop ring parts 40 are accommodated in state in the slot part 38 with a part, with conical surface 62A sliding contact, and move and little by little elasticity dwindle its diameter, and this nut part 30 when being inserted in the adapter body 26 with being pressed into fully, and the stop ring parts 40 of this undergauge keep on the end difference 64 to stop ring until hole enlargement.Thus, nut part 30 and adapter body 26 are the lock state that restrictedly is fixed mutually by these stop ring parts 40, thereby have finished fitting operation.
In addition, with being inserted into simultaneously of bellows F, the ring-type inner bulge 36A of portion of water sealing member 36 contacts with the outer circumferential face of bellows F coating 22, and contacts with the state of bending, and keeps its water-stop.
Here, bellows F is being applied in the power of extracting direction, be embedded into recess 18 places of this bellows F and be the positioning ring parts 50 of lock state with it, though only move to extracting direction integratedly with small distance very, but like this, the undergauge conical surface 54C of the rear protuberance 54 of these positioning ring parts 50 owing to touch the anticreep conical surface 60 of nut part 30, so that square thereafter protuberance 54 further to the undergauge direction, be that the central axis direction of pipe joint is pushed.Its result, because the projection 56 of this rear protuberance 54 more firmly is pressed in the recess 18 of bellows F, therefore to further moving the state that is inaccessible, this bellows F can not extract from pipe joint 16 and come off.
Like this, can not make the structure of pipe joint 16 complicated like that, bellows F is inserted in the pipe joint 16, thereafter, only just can be loaded into keeping reliable sealing to be pressed into nut part 30.And can prevent that bellows F is from pipe joint 16 pull-offs.In addition, limit position part 44 is whenever crossed the protuberance 20 of a bellows F, because the operator can feel click, just can hold the insertion state perceptually.
(embodiment 2)
Below embodiments of the invention 2 are described.
Among the embodiment 1 in front, in case when becoming the state of temporary transient locking with pressed-in nut parts 30, for this pipe joint 16 of construction decomposition will be difficult a little again, but in this embodiment 2, be the structure that can unload bellows F and nut part 30 from adapter body 26 by shirtsleeve operation.
Fig. 8 is the sectional view of the expression embodiment of the invention 2, and Fig. 9 is the stereogram of expression distance member, and Figure 10 is the decomposition process figure of expression inserting type pipe joint.And, in Fig. 1～Fig. 7, give prosign and omit its explanation about the part identical with the part that has illustrated.
In Fig. 8, the figure of the first half represents the state (before the construction) before nut part 30 is pressed into, the state after the figure of Lower Half represents to be pressed into (construction back).
Here, as shown in Figure 8, on the inwall of adapter body 26, be provided with described stop ring keep end difference 64 in abutting connection with, than the internal diameter of the stop ring maintenance end difference 64 of this ring-type also big one-level, promptly have a hole enlargement end difference 70 of the ring-type that makes the internal diameter that stop ring parts 40 can hold therein fully.What make that this hole enlargement end difference 70 is contiguous to bellows F is pressed into the direction side.Thereby the inwall of adapter body 26 keeps end difference 64 and hole enlargement end difference 70 in this part by stop ring, forms the state of two ladders.
And, at the head 30A of the hole enlargement of nut part 30 with insert on the engagement stepped-portion of the slide part 30B of adapter body 26 sides, more forward distolateral than above-mentioned water-stop O type ring 34, sandwiching the section that is made of the elastomer that forms at the C font shown in Fig. 9 is the distance member 72 of rectangle.This distance member 72 as mentioned above, for example form and can pack into and unload by the such elastomer of resin, and when pressed-in nut parts 30, between the front end of this head 30A and adapter body 26, sandwich this distance member 72, the part that makes nut part 30 only be equivalent to its thickness is pressed into, and can not be pressed into more.That is,, prevent that nut part 30 is to be inserted into more than the established amount in the adapter body 26 by this distance member 72.
And, under this embodiment's situation,, be set at the distance of the thickness T 1 that only is equivalent to above-mentioned distance member 72 the length of the slide part 30B of 30 the head 30A from slot part 38 to nut part.
In the embodiment 2 who constitutes like this, when common construction as shown in Figure 8, if can be encased in nut part 30 to above-mentioned distance member 72, identical with the embodiment's 1 who illustrates previously situation, go into bellows F to adapter body 26 interpolations, by pressed-in nut parts 30, can finish whole installation then.At this moment between the end face of the head 30A of nut part 30 and adapter body 26, sandwich distance member 72.
In such state, because when certain reason produces necessity of construction again, at first, shown in Figure 10 (A), the distance member 72 that is made of elastomer is unloaded from nut part 30, then, nut part 30 shown in Figure 10 (B), further is pressed into the length of the thickness T 1 that only is equivalent to above-mentioned distance member 72.Like this, be positioned at the stop ring parts 40 that till now stop ring keeps end difference 64, only further be pressed into, be accommodated in fully in the hole enlargement end difference 70 of large diameter more, thus, removed the sealed of nut part 30 and adapter body 26 with very little distance.
Then, shown in Figure 10 (C), removed sealed nut part 30, can decompose both if extract.Thereby positioning ring parts 50 are free state, and bellows F can extract integratedly with limit position part 44 that is embedded in its front end and sealed member 42.
(embodiment 3)
Below, embodiments of the invention 3 are described.
Among the 1st and the embodiment 2 in front, when fire etc., for example the gas-tight seal 42A of rubber system burns, and fire-resistant Sealing 42B thermal expansion, though played by burying and brought into play the effect of keeping sealing in the space that this part produces, but the filling space can be expanded to the space that the gas-tight seal 42A that burns occupies, though this part needs big fire-resistant Sealing 42B, in embodiment 3 be can make should filling the space can become littler structure.
Figure 11 is the phantom of expression embodiments of the invention 3, and Figure 12 is the circular expansion of the expression stereogram that stops to encircle, the different explanatory drawing of the action when Figure 13 is the embodiment of expression front and embodiment's 3 a fire.In addition, in Fig. 1～Figure 10 about giving prosign and omit its explanation with identical part with the part that has illustrated.
Here as shown in figure 11, in sealed member 42, between gas-tight seal 42A and fire-resistant Sealing 42B, the circular expansion that sandwiches as shown in figure 12 stops to encircle 74.This expansion stops to encircle 74 by the sheet metal of tool refractory nature, for example can be formed by stainless steel, brass, iron type materials etc.In addition, corresponding, on the inwall of adapter body 26, be provided with in order to stop above-mentioned expansion to stop to encircle 74 move, dwindle the mobile prevention end difference 76 of the ring-type of internal diameter.At this moment, under the non-compressed state of sealed member 42, above-mentioned expansion stops to encircle 74 and is set in from above-mentioned mobile prevention end difference 76, in forward end, promptly in nut part 30 sides, and the distance L 3 of leaving regulation is for example only on the position about 0～5mm.
In the embodiment 3 of such formation, when common construction, shown in Figure 11 (A) and Figure 11 (B), when pressed-in nut parts 30, contact is compressed in the integral body of the sealed member 42 of positioning ring parts 50, with it, above-mentioned expansion stops to encircle 74 and slides to the depths of adapter body and to move, and moves when stoping near end difference 76 when it slightly retreats to move to, nut part 30 and adapter body 26 are bonded with each other and are lock state (with reference to Figure 11 (B)) by stopping ring portion 40.
Here, when breaking out of fire etc., when this pipe joint is exposed to the high temperature place, the gas-tight seal 42A of rubber etc. burns, and this part becomes the space, and fire-resistant Sealing 42B volumetric expansion.At this moment, stop to encircle in 74 in that above-mentioned expansion is not set, shown in Figure 13 (A), the part that the fire-resistant Sealing 42B that expands also occupies to the gas-tight seal 42 of burning is expanded greatly and is made the filling space become big, in order to keep sufficient sealing, this part must have big fire-resistant Sealing 42B, otherwise sealing descends significantly in the worst case.
This shown in Figure 13 (B), is stopped to encircle under 74 the situation in that expansion is set, by this effect the space of filling is diminished, even the little fire-resistant Sealing 42B of this part also can keep high sealing.In addition at this moment, in the situation shown in Figure 13 (B), if expansion stop to encircle 74 around the end set the position of the protuberance (crest portion) 20 that is positioned at relative bellows F, gap between the two becomes very little, the amount that the area side that the fire-resistant Sealing 42B of thermal expansion is occupied to the gas-tight seal of burning spills partly tails off, and can improve sealing more.
In addition here, the gap 78 of the front end outer circumferential face by making bellows F and the internal face of adapter body 26 becomes very little gap, also can improve the reliability for sealing.
(embodiment 4)
Below embodiments of the invention 4 are described.
In front from the 1st to embodiment 3, bellows F is applied when extracting the power of direction, follow this situation, though positioning ring parts 50 can be a little to extracting that direction moves and the projection 56 (with reference to Fig. 6) of biting positioning ring parts 50, but because the moving a little of these positioning ring parts 50, the compressive force of so far compressed sealed member 42 descends a little, then can produce the danger that reduces its sealing.Here, in this embodiment 4, be the structure that can prevent sealing decline.
Figure 14 is the phantom of the expression embodiment of the invention 4, and Figure 15 is the sectional view of sealing pressing component of expression ring-type, and Figure 16 is the different figure that moves when applying withdrawing power among embodiment and the embodiment 4 of explanation front.
In addition, in Fig. 1～Figure 13, give prosign and omit its explanation about the part identical with the part that has illustrated.
As shown in figure 14, at the front-end face of the fire-resistant Sealing 42B that forms sealed member 42, be provided with the sealing pressing component 80 of the ring-type that slightly covers it here.Sealing pressing component 80 for example is made of resin and metallic material, as shown in figure 15, is formed with section and is font of falling L and the outstanding curved protrusion 82 of forward end direction.The length of this curved protrusion 82 is set to the front end state of contact that is with this nut part 30 under the state after the construction of pressed-in nut parts 30, from preventing that the viewpoint that sealing descends from being desirable.In addition, this section shape not necessarily must be contrary L font.
In the embodiment 4 who constitutes like this, when nut part 30 is finished construction to be pressed in the adapter body 26, as shown in Figure 14, sealed member 42 is pressed against on the end face 54A of positioning ring parts 50 by sealing pressing component 80, and is fixed with the state of compression.At this moment, the front-end face of nut part 30 is also with the preceding end in contact of the curved protrusion 82 of above-mentioned sealing pressing component 80 or be very approaching therewith state.
Bellows F is being extracted direction when applying big power here, as shown in figure 16, because the positioning ring parts 50 of ring-type are also moving and the while diameter reduction to the direction of extracting a little, so more firmly maintain bellows F, in addition, when withdrawal force was very big, the base end part side of bellows F can be extended and be disappeared that it is concavo-convex.
At this moment, shown in Figure 16 (A), when above-mentioned sealing pressing component 80 is not set, owing to follow the pressing force of the action sealed member 42 a little of above-mentioned positioning ring parts 50 to reduce, so so far compressed sealed member 42, be returned to original state, therefore and the outer circumferential face of bellows F between produce slit etc. and will cause producing the danger that sealing descends.
To this, shown in Figure 16 (B), when above-mentioned sealing pressing component 80 is set, even above-mentioned positioning ring parts 50 are mobile a little to extracting direction, but because the curved protrusion 82 of above-mentioned sealing pressing component 80 touches the front-end face of above-mentioned nut part 30 and is not fixed movably, so do not remove the compressive state of above-mentioned sealed member 42.Thereby,, therefore can prevent sealing decline because sealed member 42 is maintained at compressive state.
(embodiment 5)
Below embodiments of the invention 5 are described.
This embodiment 5 is same with the embodiment 4 of front, is the structure that can prevent that sealing from descending.
Figure 17 is the phantom of the action of the expression embodiment of the invention 5, and Figure 18 is the stereogram of the elastic packing pressing component of expression C font.
Be provided with the sealing pressing component 80 of ring-type among the embodiment 4 in front, but replace, in embodiment 5, use resin system or the metal elastic packing pressing component 84 that forms the C font in order to apply bouncing force.Thus, this elastic packing pressing component 84 diameter reduction flexibly.
This elastic packing pressing component 84 is sandwiched between the front end and positioning ring parts 50 of above-mentioned sealed member 42, at the internal face of the adapter body 26 of this part, the diameter reduction that forms the ring-type that its radius diminishes gradually towards above-mentioned sealed member 42 sides is with the conical surface 86.Thus, nut part 30 moves along diameter reduction limit, the conical surface 86 limit when being pressed above-mentioned elastic sealing element 84 by positioning ring parts 50.
And then, at the internal face of this adapter body 26, the position of the above-mentioned elastic packing pressing component 84 when being pressed into fully corresponding to nut part 30, section is that the pressing component fixed groove 88 of rectangle forms ring-type, with above-mentioned elastic sealing element 84 hole enlargements, it is fixing that it can be held in this groove 88.
In the embodiment 5 who constitutes like this, shown in Figure 17 (A), along with nut part 30 is pressed in the adapter body 26, the front end of positioning ring parts 50 is pushed the above-mentioned sealed member 42 of compression by above-mentioned elastic packing pressing component 84 when construction.At this moment, above-mentioned elastic packing pressing component 84 is along above-mentioned undergauge slip limit, the conical surface 86 limit undergauge.And shown in Figure 17 (B), when nut part 30 was pressed into fully, this elastic packing pressing component 84 arrived pressing component fixed groove 88 and hole enlargement here, thereby is fixed in this groove 88.
Here, shown in Figure 17 (C), bellows F is applied to the power of extracting direction, even positioning ring parts 50 are in that to extract direction mobile a little, but as mentioned above like that because in pressing component fixed groove 88, above-mentioned elastic packing pressing component 84 is the fixing state of embedding, so do not remove the compressive state to above-mentioned sealed member 42.Thereby,, can prevent that therefore its sealing from descending because sealed member 42 is kept compressive state.
In addition,, as shown in figure 19, make above-mentioned elastic sealing element 84 between gas-tight seal 42A and fire-resistant Sealing 42B, also can sandwich to have the pre-flexibly state of undergauge as the variation of the foregoing description 5.And, the position of the above-mentioned elastic sealing element 84 in the time of also can be, above-mentioned pressing component fixed groove 88 is set corresponding to sealing parts 42 compression.
At this moment, shown in Figure 19 (B), because by being embedded in the elastic sealing element 84 in the said fixing groove 88, keep the confined state of sealed member 42, so identical with the situation of the foregoing description 5, even bellows F is applied to the power of extracting direction, also can keep high leak tightness.
(invention effect)
As described above, by inserting type pipe joint of the present invention, can bring into play following good effect and effect.
1～5 the inserting type pipe joint according to the present invention, when being inserted into bellows in the adapter body, this bellows is inserted and is led in the positioning ring parts and sealed member of ring-type, its front end contacts with limit position part, a logical crest or a plurality of crest are inserted in the diameter limit of the scalable limit position part in limit, make interior all ends of limit position part be the state that the recess at bellows embeds, with the further pressed-in nut parts of this state the time, its front end contacts and makes its diameter reduction with the positioning ring parts, one end of these positioning ring parts is the state of the recess that is embedded into bellows, and by the stop ring parts, nut part is fixed to the adapter body side, finishes thus to insert and fixes.With this state, when bellows is bestowed the power of extracting direction, limit position part and sealed member are one, direction is mobile slightly extracting, apply and make the positioning ring parts to extracting the power that direction moves, perhaps because an end of positioning ring parts is embedded into the recess of bellows, therefore applying makes the positioning ring parts to extracting the power that direction moves, at this moment, apply the power that the positioning ring parts that contact with nut part dwindle its diameter, produce the effect that stops bellows to be extracted, thereby bellows is inserted in the adapter body with fully embedding, only, just can connect bellows with the state of keeping good sealing property with the pressed-in nut parts.Thereby, do not make the structure of inserting type pipe joint complicated like that, and the attended operation of bellows is carried out simple and reliablely.
6 the inserting type pipe joint according to the present invention, in the inserting type pipe joint of decomposition assembling in a single day in order to implement once more, above-mentioned distance member is unloaded from above-mentioned nut part, by this nut part further is pressed into to the adapter body side, make inner stop ring parts be embedded into the hole enlargement end difference and hole enlargement himself, can remove the sealed of nut part and adapter body thus.
7 the inserting type pipe joint according to the present invention, when sealed member is exposed to the high temperature place of fire, the fire-resistant Sealing of its part expands, but at this moment, by the effect that stops to encircle by the mobile circular expansion that stops end difference to be fixed, fire-resistant Sealing can prevent to make the slit between bellows and the inserting type pipe joint to expand out of orderly, and makes it can concentrate on a place, even also can keep high leak tightness well when fire etc. thus.
8 the inserting type pipe joint according to the present invention, when extracting after the assembling of finishing bellows, to this bellows when direction applies power, even above-mentioned positioning ring parts are moving to extracting direction to a certain degree, above-mentioned sealing pressing component also can contact with above-mentioned nut part and the sealing pressing component is moved hardly, thereby, maintain compressed state owing to sealed member is pressed,, and can keep high leak tightness so sealing can not degenerate.
9 the inserting type pipe joint according to the present invention, when the pressed-in nut parts, the elastic packing pressing component is fixed in the pressing component fixed groove with state, the embedding of pushing the compression seal parts, thereby after the assembling of bellows is finished, even this bellows is being extracted when direction applies power, because the effect by above-mentioned elastic packing pressing component, sealed member is pressed and is maintained at compressed state, therefore sealing can not degenerate, and can keep high leak tightness.
10 the inserting type pipe joint according to the present invention, when the pressed-in nut parts, hole enlargement elastic packing pressing component, be embedded in the hole enlargement pressing component fixed groove with the state of pushing the compression seal parts and be fixed, thereby after the assembling of bellows is finished, even this bellows is being extracted direction when applying power, because effect by above-mentioned hole enlargement elastic packing pressing component, sealed member is maintained at the state of the compression that is pressed, so sealing can not degenerate, and can keep high leak tightness.
Claims (11)
1. inserting type pipe joint device is to have the inserting type pipe joint that the bellows of the jog of crest shape is connected with outer circumferential face, it is characterized in that:
Have: be formed for inserting the stepped adapter body of the pipe patchhole of described bellows and internal face and
The nut part of the ring-type that can install slidably at its length direction of front end edge of described adapter body and
Be arranged on described adapter body internal face described end difference sealed member and
Be arranged on the base end part side of described sealed member and when inserting described bellows with preceding end in contact, its part of described bellows make on flexibly scalable limit, the radial direction limit of described bellows described bellows insert the ring-type of leading to the inboard limit position part and
Sandwich push between described nut part and the described sealed member and when inserting described nut part described sealed member, simultaneously one distolateral to the central direction of described bellows can be flexibly scalable ring-type the positioning ring parts and
Be located on the described nut part and when described nut part is inserted into described adapter body side, the stop ring parts of fixing described nut part;
Described nut part when it is inserted described adapter body, contacts with described positioning ring parts, and it is out of shape to the undergauge direction.
2. according to the described a kind of inserting type pipe joint device of claim 1, it is characterized in that:
Described positioning ring parts are by with the front lip portion cylindraceous of the inwall sliding contact of described nut portions be when zero load laterally that the thick rear protuberance of hole enlargement state constitutes.
3. according to claim 1 or 2 described inserting type pipe joint devices, it is characterized in that:
In the inner face side of described rear protuberance, be formed with the expansion that when undergauge, contacts and drive the conical surface, and side is formed with the undergauge conical surface that contacts with described nut part outside with described bellows.
4. according to claim 2 or 3 described inserting type pipe joint devices, it is characterized in that:
In described rear protuberance and described front lip portion, be provided with except the part of described front lip portion end, a plurality of groovings that form in its length direction incision.
5. according to any described inserting type pipe joint device in the claim 1～4, it is characterized in that:
Described limit position part by the ring portion that is fixed on described adapter body side, and is located at the inboard of this ring portion and contact a plurality of locking piece formation that produces resiliently deformable with the outer circumferential face of the bellows of described insertion.
6. according to any described inserting type pipe joint device in the claim 1～5, it is characterized in that:
On described nut part, be provided with the distance member that can load and unload when described adapter body is inserted, in order to prevent to surpass the insertion more than the established amount, and on the inwall of described adapter body, be formed with when inserting described nut part, allow the hole enlargement of described stop ring parts and remove the sealed hole enlargement end difference of described nut part and described adapter body with the state that unloads described distance member.
7. according to any described inserting type pipe joint device in the claim 1～6, it is characterized in that:
Described sealed member is by the fire-resistant Sealing that expands by high temperature and have bubble-tight gas-tight seal to constitute, between described fire-resistant Sealing and described gas-tight seal, be provided with circular expansion and stop ring, and, be formed with the mobile prevention end difference that moves that the described expansion when stoping described fire-resistant Sealing to expand stops to encircle at the inwall of described adapter body.
8. according to any described inserting type pipe joint device in the claim 1～7, it is characterized in that:
At an end face of described sealed member, be provided with when described nut part inserts with the back end in contact of the front end of described nut part or described positioning ring parts and push described sealed member, while contacted or be the ring-type of approaching state with described nut part with pressed state sealing pressing component.
9. according to any described inserting type pipe joint device in the claim 1～7, it is characterized in that:
End face at described sealed member, be provided with when inserting described nut part, push the elastic packing pressing component that undergauge is carried out on described sealed member limit with the front end of described nut part or back end in contact, the limit of described positioning ring parts, inwall in described adapter body, the promising undergauge that makes described elastic packing pressing component undergauge is set to be used the conical surface and makes the hole enlargement of described elastic packing pressing component and the pressing component fixed groove fixed with the described sealed member state of being pressed.
10. according to any described inserting type pipe joint device in the claim 1～6, it is characterized in that:
Described sealed member, by by the expandable fire-resistant Sealing of high temperature and have bubble-tight gas-tight seal to constitute, between described fire-resistant Sealing and described gas-tight seal, be provided with circular expansion and stop ring, simultaneously, be provided with by hole enlargement elastic packing pressing component at the inwall of described adapter body, and be provided with that the state that is pressed with described sealed member makes described hole enlargement elastic packing pressing component hole enlargement and the hole enlargement pressing component fixed groove fixed at the inwall of described adapter body to the compression of undergauge direction.
11., it is characterized in that according to any described inserting type pipe joint device in the claim 1～10:
In the end of described nut part, be formed with the anticreep conical surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001308799 | 2001-10-04 | ||
| JP2001308799 | 2001-10-04 |
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| Publication Number | Publication Date |
|---|---|
| CN1421634A true CN1421634A (en) | 2003-06-04 |
| CN100373085C CN100373085C (en) | 2008-03-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021442452A Expired - Lifetime CN100373085C (en) | 2001-10-04 | 2002-10-08 | Inserting pipe joint |
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| Country | Link |
|---|---|
| CN (1) | CN100373085C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100343571C (en) * | 2004-11-29 | 2007-10-17 | 黄陈宝 | Connecting structure of corrugated pipe |
| CN100387890C (en) * | 2006-04-14 | 2008-05-14 | 天孚真空机器软管（上海）有限公司 | Inserted type quick coupling of flexible metal tube |
| CN101471552A (en) * | 2007-12-27 | 2009-07-01 | 東拓工业株式会社 | Pipe connection structure |
| CN100529501C (en) * | 2004-07-16 | 2009-08-19 | Pma股份公司 | Connector and adapter piece for corrugated pipes |
| CN102439346A (en) * | 2009-05-11 | 2012-05-02 | 日立金属株式会社 | Pipe joint |
| CN102563263A (en) * | 2008-08-13 | 2012-07-11 | Jfe继手株式会社 | Joint for flexible tube |
| CN101382220B (en) * | 2007-09-07 | 2012-07-18 | 日立金属株式会社 | Joint for corrugated tube |
| CN105006784A (en) * | 2015-06-26 | 2015-10-28 | 宁波南车时代传感技术有限公司 | Corrugated hose sealing joint |
| CN108019575A (en) * | 2016-11-01 | 2018-05-11 | 株式会社山田制作所 | Inserted sleeve |
| CN108105501A (en) * | 2018-01-19 | 2018-06-01 | 杭州万全金属软管有限公司 | A kind of direct insertion fuel gas transmission leads directly to pipe fitting with stainless steel corrugated flexible hose |
| CN114502864A (en) * | 2019-10-18 | 2022-05-13 | 株式会社久保田 | Ring body, pipe joint, and pipe joining method |
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| DE4020171C1 (en) * | 1990-06-25 | 1991-12-05 | Flexa Gmbh & Co Kg | |
| JP3092882B2 (en) * | 1992-08-10 | 2000-09-25 | 東京瓦斯株式会社 | Flexible pipe fittings |
| FR2772458B1 (en) * | 1997-12-11 | 2000-01-14 | Legris Sa | DEVICE FOR QUICK CONNECTION OF A TUBE TO A RIGID ELEMENT WITH ANTI-EXTRACTION RING AND INTEGRITY INDICATOR |
| JP2001132881A (en) * | 1999-11-08 | 2001-05-18 | Hitachi Metals Ltd | Bell-and-spigot |
| JP4523687B2 (en) * | 1999-12-03 | 2010-08-11 | 東京瓦斯株式会社 | Corrugated fitting |
| JP4633215B2 (en) * | 1999-12-28 | 2011-02-16 | 東京瓦斯株式会社 | Corrugated fitting |
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| CN100529501C (en) * | 2004-07-16 | 2009-08-19 | Pma股份公司 | Connector and adapter piece for corrugated pipes |
| CN100343571C (en) * | 2004-11-29 | 2007-10-17 | 黄陈宝 | Connecting structure of corrugated pipe |
| CN100387890C (en) * | 2006-04-14 | 2008-05-14 | 天孚真空机器软管（上海）有限公司 | Inserted type quick coupling of flexible metal tube |
| CN101382220B (en) * | 2007-09-07 | 2012-07-18 | 日立金属株式会社 | Joint for corrugated tube |
| CN101471552A (en) * | 2007-12-27 | 2009-07-01 | 東拓工业株式会社 | Pipe connection structure |
| CN102563263B (en) * | 2008-08-13 | 2014-12-10 | Jfe继手株式会社 | Joint for flexible tube |
| CN102563263A (en) * | 2008-08-13 | 2012-07-11 | Jfe继手株式会社 | Joint for flexible tube |
| CN102588692A (en) * | 2008-08-13 | 2012-07-18 | Jfe继手株式会社 | Joint for flexible tube |
| CN102439346B (en) * | 2009-05-11 | 2013-11-06 | 日立金属株式会社 | Pipe joint |
| CN102439346A (en) * | 2009-05-11 | 2012-05-02 | 日立金属株式会社 | Pipe joint |
| CN105006784A (en) * | 2015-06-26 | 2015-10-28 | 宁波南车时代传感技术有限公司 | Corrugated hose sealing joint |
| CN108019575A (en) * | 2016-11-01 | 2018-05-11 | 株式会社山田制作所 | Inserted sleeve |
| CN108019575B (en) * | 2016-11-01 | 2020-04-21 | 株式会社山田制作所 | Plug-in connector |
| CN108105501A (en) * | 2018-01-19 | 2018-06-01 | 杭州万全金属软管有限公司 | A kind of direct insertion fuel gas transmission leads directly to pipe fitting with stainless steel corrugated flexible hose |
| CN114502864A (en) * | 2019-10-18 | 2022-05-13 | 株式会社久保田 | Ring body, pipe joint, and pipe joining method |
| CN114502864B (en) * | 2019-10-18 | 2024-04-30 | 株式会社久保田 | Pipe joint and pipe joining method |
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| CN114658943A (en) * | 2020-12-23 | 2022-06-24 | 横滨橡胶株式会社 | Auxiliary clamp for pipe joint |
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Granted publication date: 20080305 |
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