CN1163367A - Pipe joint unit - Google Patents
Pipe joint unit Download PDFInfo
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- CN1163367A CN1163367A CN 96105134 CN96105134A CN1163367A CN 1163367 A CN1163367 A CN 1163367A CN 96105134 CN96105134 CN 96105134 CN 96105134 A CN96105134 A CN 96105134A CN 1163367 A CN1163367 A CN 1163367A
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Abstract
The pipe union realizes the connection to pipes by the pin wedged to produce compression deformation on pipes. Such a connection is force saved, needs no specific skill and may be completed simply and quickly by any body and even in narrow space. The pipe union includes union body and pin, the union body has through holes, which have its surface corresponding to one part of the inserted pipe surface, and the pin is wedged into the through hole and has conic part and fastening part.
Description
The present invention is relevant steel pipe, Stainless Steel Tube, and other is as the piecing devices of copper pipe, various pipelines such as plastic.
Put down in Japan on No. 6291, the open communique of model utility in 5 years, showed a kind of existing pipe joint unit, as shown in figure 19, this pipe joint unit is made up of joint body 23 and pin 24.On the both sides of the tubular axis center line of above-mentioned joint body 23, be provided with two unlimited slits 22,22.This slit 22,22 is faced mutually with the surface of insertion tube 21.Above-mentioned pin 24 has " コ " shape, in its wedged above-mentioned two slit 22,22.A pair of clamping section 24a that faces toward mutually on the pin 24 and the size between the 24b, smaller a little than the external diameter of pipeline 21.And, on the front end of this clamping section 24a and 24b, have tapered portion 25.Pin 24 beaten the into initial stage of slit 22,22, this tapered portion 25 contacts with the surface of pipeline 21; And along with pin 24 is beaten into slit 22,22 gradually, this tapered portion 25 just is deep into the surface of pipeline 21.
With the pipe joint unit of such formation, the operational sequence when being connected to pipeline 21 on the joint body 23 is: the pipeline 21 that will connect earlier is inserted in the joint body 23; Then pin 24 is inserted in the slit 22,22 on the joint body 23; Then repeatedly beat with hammer, make the surface of pipeline 21 be produced compressive strain by the tapered portion on the pin 24 25,25, tapered portion 25,25 is deep in this compressive strain portion; After pin 24 is beaten into, just make clamping section 24a, 24b be fixed on the surface of compressive strain place of pipeline 21.
But, on the pipe joint unit of this formation, there is following point: because the pin 24 that makes the surface of pipeline produce compressive strain is " コ " shape, the hitting power of beaing pin is disperseed by two clamping section 24a and 24b, so when wedging pin 24, will brandish the hammer continuous several times significantly and beat with strength, this is a heavy physical labour to the operator; And, such pin 24 beaten into also relatively take time.
In addition, along with pin is wedged inward, clamping section 24a and 24b on the pin are easy to generate random dilatating and deformable.So, just be necessary to increase the width of pin 24 for the intensity of the foundation that improves this clamping section 24a and 24b.But so, can make pin 24 outstanding greatly from the surface of pipeline 21, the outer teat that can increase this clamping section thus is with clothes tangle, the damage danger of the person.And, owing to will beat pin 24 with strength, make on the supporting part of pipeline 21 and also be subjected to very big impact force, also must be very solid structure so just force this supporting part.Further owing to when beaing pin 24, will brandish hammer significantly, so just require pipeline around enough working spaces are arranged.If the narrow space around the pipeline, perhaps pipeline is intensive, will make the connection operation of pipeline become very difficult.
Particularly, when beaing pin 24, the very important point is, guarantee pin 24 be with straight line shape by the meeting of throwing into, make its phase embedding clamping and live pipeline 21.If beaten other position on the pin 24 but beat mistiming, for example, when mistake had been beaten the upper corners position of pin 24, the clamping section 24b of downside will throw off from slit 22, at this moment just just the clamping section 24a of upside make pipeline 21 produce compressive strains.At this moment, pipeline 21 is as long as be subjected to some vibrations a little, and pin 24 will wholely come off.The danger that so just has the fatefulue joint that causes pipeline 21 to get loose.On this point, when beaing pin 24, just require the operator suitable experience to be arranged.
The present invention carries out in view of above-mentioned in esse problem.Its objective is, a kind of pipe joint unit is provided, utilize this piecing devices, just do not require when beaing pin that the operator must have suitable experience, and it is just passable with strength gently when beaing, thereby do not need to brandish hammer significantly, make the connection operation of pipeline can accomplish rapid and reliable.
In order to achieve the above object, taked technological means as described below among the present invention.That is, the feature of pipe joint unit of the present invention is: it is made up of joint body and pin; Have through hole on this joint body, this through hole is faced mutually with the part on the surface of insertion tube on the tangent direction on the surface of insertion tube; Pin is in the wedged above-mentioned through hole; In addition, have tapered portion and clamping section on the above-mentioned pin; This tapered portion contacted with the surface of insertion tube before pin is wedged, and along with pin is progressively wedged, this tapered portion is just goed deep into the surface of pipeline; The surface at the depression position on the pipeline is then being fixed in clamping section on the pin.
Utilize the piecing devices of said structure feature, its connection situation is: the pipeline that will connect earlier inserts in the joint body, and the part of pipe surface is faced mutually with through hole; Then, pin is inserted in this through hole, beat this pin with hammer; Along with the carrying out that beats, pin is thrown in the through hole so; By the tapered portion on the pin that is in restrained condition, make the surface of pipeline produce local compressive strain.
And by repeatedly beaing this pin, the tapered portion on the pin is just goed deep into the compressive strain portion of pipeline gradually.On surface, with coming solid portion to fix on the pin by the depression position of the pipeline that this tapered portion caused.Thereby realize the connection between joint body and the pipeline.
Fig. 1 represents the exploded perspective view of the pipe joint unit among the 1st embodiment.
Fig. 2 represents the sectional drawing of the major component of pipe joint unit, and the right side part has shown the state before the pin wedging among the figure.
Fig. 3 represents along the sectional drawing of the A-A line among Fig. 2.
Fig. 4 represents the exploded perspective view of the pipe joint unit among the 2nd embodiment.
Fig. 5 represents the oblique drawing after the excision of the part on the pin.
Fig. 6 represents to show the sectional drawing of the pipe joint unit of the state of pin before wedged.
Fig. 7 represents to show the sectional drawing of the pipe joint unit of the state of pin after wedged.
Fig. 8 represents the sectional drawing of the pipe joint unit of the pin among the 3rd embodiment after wedged.
Fig. 9 represents the sectional drawing of the pipe joint unit of the pin among the 2nd embodiment after wedged.
Figure 10 represents the sectional drawing of the wedged major component in the past of pin.
Figure 11 represents the sectional drawing of the major component of pin after wedged.
Figure 12 represents the planimetric map of the pipe joint unit among the 5th embodiment.
Figure 13 represents the longitudinal profile side view of pipe joint unit.
Figure 14 represents the outside of the insertion end of pipeline is shunk the fragmentary cross-sectional view of the pipeline after the processing.
Figure 15 represents the oblique drawing after the part excision of pin.
Figure 16 represents to show the longitudinal profile side view of the pipe joint unit of another kind of seal form.
Figure 17 represents the profile of another pin.
Figure 18 represents the oblique drawing of another pin.
Figure 19 represents the explanatory drawing of existing pipe joint unit.
Below, according to appended drawing, embodiments of the invention are described.Fig. 1 to Fig. 3 is the pipe joint unit 1 among the 1st embodiment of the present invention.This pipe joint unit 1 is with metal tubes such as steel pipe, Stainless Steel Tubes, and the pipeline 2 of synthetic resin system etc. is connecting object, is made up of joint body of making of metal 4 and pin 5.Has the connecting tube portion 3 that inserts usefulness for pipeline 2 on the both sides of above-mentioned joint body 4.Pin 5 makes the surface of the pipeline 2 of the above-mentioned connecting tube of insertion portion 3 produce depression, thereby pipeline 2 can not be transferred to, and pin 5 is together fixedly connected with joint body 4.
Specifically, inside between the connecting tube portion 3,3 of above-mentioned joint body 4, be provided with the position limit portion 6 that the insertion position of pipeline 2 is limited, simultaneously, be provided with groove b in the both sides of this position limit portion 6, this groove b goes up the chimeric O type circle a that the pipeline 2 that inserts is sealed usefulness that is installed with; And on the outer surface of the end of the joint body 4 more outer than this groove b, be provided with the tubular axis center line is the protuberance 4a of the half-turn shape that intersects vertically, has circular through hole 7 on this protuberance 4a, the part on the surface of the pipeline 2 of this through hole 7 and insertion connecting tube portion 3 is faced mutually in the tangent direction of pipeline 2.
Below, to the pipe joint unit 1 with above-mentioned formation, the operating process when being connected to pipeline 2 on the joint body 4 describes.
At first, pipeline 2 is inserted into the connecting tube portion 3 of joint body 4, the front end that makes pipeline 2 be inserted into after by through hole 7 and O type circle a position limit portion 6 near, perhaps just be inserted into when directly contacting with position limit portion 6 always till.At this moment, the part on the surface of this pipeline 2 is faced (referring to the right side of Fig. 2) mutually with the through hole 7 on the joint body 4.
Whether the insertion degree of this pipeline 2 meets predetermined extent, judges according to feeling.But in order to obtain correct insertion degree, preferably think about desired insertion size after, do mark (as using colour-wash) on the surface of pipeline 2.When pipeline 2 by fixed insertion size when being inserted into joint body 4, the through hole 7 from the joint body 4 can carry out Visual Confirmation to the place of marking.
Then, pin 5 is inserted in the through hole 7.With after the surface of pipeline 2 contacts, beat pin 5 in the tapered portion 9 of pin 5 with hammer.
So along with pin 5 is thrown in the through hole 7, pin 5 is in a kind of stressed restrained condition, the tapered portion 9 on the pin 5 is deep in the surface of pipeline 2, makes the surface of pipeline 2 produce local compressive strain, and tapered portion 9 just is deep in this compressive strain portion.
Then, by repeatedly beaing pin 5, above-mentioned tapered portion 9 just progressively makes the surface of pipeline 2 produce compressive strain portion.Clamping section 8 is being fixed at position after being caved in by this tapered portion 9 in the surface of pipeline 2.Thus, obtained being fastenedly connected between pipeline 2 and the joint body 4, pipeline can not be transferred to for 2 this moments.Subsequently as required, the nut d that can screw on the d of screw section can not be transferred to pin 5.Like this, pipeline 2 is connected operation with insertion between the joint body 4 and has just finished.
When with the pipe joint unit of above-mentioned formation pipeline being connected, be to produce local compressive strain by the surface that makes pipeline, the clamping section is fixed on the surface of the depressed part of this pipeline then.In this, the form that is connected with pipeline that the pin of existing usefulness " コ " shape carries out, be provided with difference, but owing to have only one as the pin 5 that is subjected to through hole 7 constraints that beats object among the present invention, so when beaing pin 5, hitting power is concentrated on this pin of.Like this, even not quite amplitude brandishing hammer beats pin 5 with strength, also can make the surface of pipeline 2 produce local compressive strain by the tapered portion on the pin 59.
Therefore, with the pipe joint unit 1 that constitutes like this, qualification that just can the unattended operation person how, and anyone can finish being connected between pipeline 2 and the joint body 4 simply, fast and with a wet finger.In addition owing to there is no need to brandish significantly hammer, so even the narrow space around the pipeline some, perhaps pipeline is more intensive, also can connect pipeline 2 easily.And the supporting structure of pipeline 2 is also accomplished easily.Further, because pin 5 nearly all is housed in the through hole 7, so also be good from Security.
Below, according to Fig. 4 to Fig. 7, the pipe joint unit among the 2nd embodiment 1 is described.In this embodiment, through hole 7 is a rectangular shape, and this through hole 7 is faced in the tangent direction of pipeline 2 mutually with the part on the surface of insertion tube 2.The structure of pin 5 comprises: pin body 10, clamping parts 11 and beat face 12.Above-mentioned pin body 10 is flat partially rectangular-shaped, its section configuration, with the section configuration of the 7a of through hole portion of the stenosis of the area of through hole 7 after the connecting tube portion 3 that pipeline 2 is inserted joint bodies 4 be corresponding.The 7a of this through hole portion is to obtain after deducting that part of size of connecting tube portion 3 back that pipeline 2 is inserted into joint body 4 being blocked by pipeline 2 in the size by through hole 7.The narrower in width of above-mentioned clamping parts 11, it is set on the central position of width direction of a side of pin body 10.Along with the carrying out that beats, make by these clamping parts 11 to produce local compressive strain on the surface of the pipeline of facing mutually with through hole 72, thereby make pipeline 2 obtain clamping.Above-mentioned beaing on the end of length direction that face 12 is set at pin 10, its size is bigger than through hole 7.
In the above-mentioned clamping parts 11,, constitute clamping section 8 by the part beyond its front end.On its front end, be provided with tapered portion 9.Be inserted at the front end with pin body 10 under the state of the 7a of through hole portion, this tapered portion 9 contacts with the surface of pipeline 2.Then, along with beaing pin 5, this tapered portion 9 is just goed deep into the surface of pipeline 2 gradually.
On the pipe connector 1 of above-mentioned such formation, the shape of the structure of its pin 5 and through hole 7 and is inequality at the pipe joint unit shown in Fig. 1 to Fig. 31.But pipeline 2 is the same with Connecting format between the joint body 4, so omit the repeat specification that it is connected to form herein.
Below, according to Fig. 8, the pipe joint unit among the 3rd embodiment 1 is described.The feature of this pipe joint unit 1 is: more leaning on the internal surface of inboard connecting tube portion 3 than the through hole on the joint body 47, be provided with the O type circle a that pipeline 2 is sealed usefulness; On the other hand, in the inside of joint body 4, be provided with joint body 4 and be the holistic fuse 14 of supporting the end of pipeline 2 from the inboard.This fuse 14 is a concentric circles with respect to connecting tube portion 3.The outer surface of fuse 14 is parallel cylindric with the internal surface of connecting tube portion 3.And the internal surface of fuse 14, for the resistance that reduces its convection cell is designed to cone-shaped as far as possible.The formation of others, identical with among above-mentioned the 1st embodiment is so omit explanation herein.
According to the pipe joint unit of this structure, under the state of the connecting tube portion 3 that pipeline 2 is inserted into joint body 4, the end of pipeline 2 is subjected to the support from the fuse 14 of inboard.So, throwing pin 5 into through hole 7, when making the surface of pipeline 2 produce local compressive strain, even partly produce some deflection deformations at the tube wall of the both sides that are positioned at pin 5, but fuse 14 can stop near the tube wall the O type circle a and produces deflection deformation.So the contact between the outer surface of O type circle a and pipeline 2 is stable.
That is to say, pin 5 is being thrown in the through hole 7 of joint body 4, when making pipeline 2 produce local compressive strain, if in the tube wall just with pin 5 contacted positions on produce distortion, be without any problem.In fact, but deflection deformation also often appears on the tube wall of the both sides that are positioned at pin 5.Therefore, if the interval between through hole 7 and the O type circle a is too narrow, the deflection deformation meeting of the tube wall that is accompanied by the wedging of pin 5 and produces feeds through to the position of O type circle a, contact between the outer surface of O type circle a and pipeline 2 is fluffed, thereby cause the sealing of O type circle a to descend, this also becomes the reason of leaking.
The countermeasure that can take in order to overcome above-mentioned such shortcoming is, is provided with the spacing between through hole 7 and the O type circle a enough big, thereby makes the wedging that is accompanied by pin 5 and the deflection deformation of the tube wall that produces is unlikely to feed through to O type circle a place.But,,, finally cause the size of pipe joint unit 1 elongated so require the length of the connecting tube portion 3 on the joint body 4 also longer because the spacing between through hole 7 and the O type circle a has increased in this occasion.
About this point, as shown in Figure 8, if a fuse 14 is set in the inside of joint body 4, this fuse 14 is being supported the end of pipeline 2 from the inboard, so, even the spacing between through hole 7 and the O type circle a is smaller, be accompanied by the wedging of pin 5 and the influence of the deflection deformation of the tube wall that produces can not feed through on the position of O type circle a yet.Like this, even the size of pipe joint unit 1 is short, also can guarantee high sealability.
In addition, shown joint body 4 and pin 5 in Fig. 8 is with the identical type (having used the pipe joint unit 1 of the pin 5 of circular section) that is in the 1st embodiment shown in Fig. 1 to Fig. 3.But also can make joint body 4 and pin 5 among Fig. 8, the structure of the same type among the 2nd embodiment shown in employing and Fig. 4 to Fig. 7.
Below, according to Fig. 9 to Figure 11, the pipe joint unit among the 4th embodiment 1 is described.The feature of this pipe joint unit 1 is: than the through hole 7 of joint body 4 more by the inside of inboard joint body 4, be provided with the internal surface of the end of pipeline 2 and produce the core pattern caulking piece 15 that pressure contacts.This core pattern caulking piece 15 is made with rubber or synthetic resin elastomeric material.Formed by annulus 15a and barrel 15b on its structure.This annulus 15a is to be embedded on the annular groove 16 of locating usefulness on the internal surface that is positioned at joint body 4.And barrel 15b, be from the inner of annulus 15a to the expansion of the both sides of pipeline direction of axis line, and with annulus 15a be an integral body.Like this, barrel 15b just produces Elastic Contact with the internal surface of pipeline 2, thereby plays a part sealing.
When adopting such structure, because with the contacted O type of the outer surface of pipeline 2 circle a, and with the contacted core pattern caulking piece of the internal surface of pipeline 2 15 both can produce dual sealing function, so the pipe joint unit of this structure can guarantee very high sealability.
In addition, can successfully be inserted between the connecting tube portion 3 of core pattern caulking piece 15 and joint body 4 in order to make pipeline 2, preferably the internal surface with the end of pipeline 2 carries out chamfered earlier.The outer surface of the cylindric part 15b of core pattern caulking piece 15 also can be and concentric cylindric of the internal surface of insertion tube portion 3.But structure in the present embodiment, as shown in figure 10, there is certain bending in the outside of cylindric part 15b on diametric(al), its objective is between the internal surface for the front end that makes cylindric part 15b and pipeline 2 to produce closely and contact reliably.In addition, at joint body shown in Fig. 9 to Figure 11 4 and pin 5, be the type identical (having used the pipe joint unit 1 of cross section) shown in the 1st embodiment with Fig. 1 to Fig. 3 as the pin 5 of circle.In addition, also can adopt identical joint body 4 and the pin 5 of type shown in the 2nd embodiment with Fig. 4 to Fig. 7.
Below, according to Figure 12, the pipe joint unit among the 5th embodiment 1 is described.This pipe joint unit 1 is the product after the pipe joint unit 1 among above-mentioned the 2nd embodiment is improved.This pipe coupling 1 is particularly suitable for connecting such pipeline 2: as shown in figure 13, with the outer surface of the end of the insertion tube of pipeline 2, carry out grinding with the instrument of sander and so on, make and be processed into the thin 2a of conical surface portion of the tip; Perhaps as shown in figure 14,, processing is shunk in the end of the insertion tube of pipeline 2, make the outer surface of this end be processed into the thin conical surface 2a of the tip with the machine of squeeze molding machine and so on.
Specifically, near the position limit portion 6 of joint body 4, be provided with the groove f of ring-type.On the groove f of this ring-type, be provided with the groove f of ring-type.On the groove f of this ring-type, be provided with Sealing (for example available hard or soft synthetic resin, perhaps rubber is made, what show in the present embodiment constitutes with dummy stack) 13, the internal surface of sealing part 13 is conical surface S, and the shape of the conical surface 2a that the tip of this awl dish face S and above-mentioned pipeline 2 is thin is corresponding.Along with pipeline 2 along the moving of its direction of insertion, between this pipeline 2 and Sealing 13, will produce seal action.On the other hand, as pin 5, be the structure that adopts as shown in figure 15.Have the clamping parts of being formed by tapered portion 9 and clamping section 8 11 on this pin 5.These clamping parts 11 are with respect to the shaft axis of through hole 7, along on the direction of the shaft axis of pipeline 2 some deflections being arranged slightly.Like this, along with the wedging of pin 5, will force pipeline 2 to move along producing on its direction of insertion.
That is to say, along with the wedging of pin 5, on the plane of inclination of above-mentioned clamping parts 11 (tapered portion 9 and clamping section 8), can produce a kind of thrust, this thrust forces pipeline 2 to produce along its direction of axis line and moves.Between the conical surface S of the thin conical surface 2a of the tip of above-mentioned pipeline 2 and Sealing 13, produce sealing by conical contact.
According to above-mentioned formation, just can be with a part of beaing in the hitting power of pin 5, be transformed into the power of direction that the thin conical surface 2a of the tip that makes pipeline 2 is pushing the conical surface S of Sealing 13.So just can make to produce good face contact between pipeline 2 and the Sealing 13, thereby guarantee high sealability.
In addition, in the above-described embodiments,, be to have adopted for example material of dummy stack and so on as Sealing 13.But also can not establish annular recess f, but directly on joint body 4, form conical surface S, with this conical surface S as Sealing 13 usefulness.At this moment, along with pipeline 2 along moving on its direction of insertion, between the thin conical surface 2a of the tip and the conical surface S on the joint body 4 of pipeline 2, reach sealing purpose by the way of contact of cone-shaped metal face.In the time of this, on the Metal Contact face, should be coated with for example liquid sealing material of last layer.
Figure 17 and Figure 18 have shown the structure of the pin 5 among other the embodiment.That is, the pin 5 shown in Figure 17 is that the structure of pin 5 used among the 2nd and the 5th embodiment is carried out product after the local deformation.In the above-mentioned the 2nd and the 5th embodiment, see that as from Fig. 6, knowing the crest line S1 of the clamping section 8 that the depressed part of the pipe surface that produced by tapered portion 9 is fixed is to parallel with slip surface (bottom surface) S2 on the pin body 10.And on the pin shown in Figure 17 5, its clamping section is slowly to tilt, and forms the very little tapered portion S3 of inclination by it.Like this, along with the wedging of pin 5, the depression in the surface portion of above-mentioned pipeline 2 can further make the clamping section 8 on the pin 5 shown in Figure 17 deeply enter.
In addition, the pin 5 shown in Figure 17, in the time of in being used to the 2nd embodiment, its clamping parts 11 (tapered portion 9 and clamping section 8) are to parallel with the length direction of pin body 10.And when the pin shown in Figure 17 5 was used among the 5th embodiment, above-mentioned clamping parts 11 (tapered portion 9 and clamping section 8) as shown in figure 12, were deflections with respect to the length direction of pin body 10.But no matter under which kind of situation, the very little tapered portion S3 of the inclination that crest line constituted by clamping section 8, all extend to (not shown) till the front end of clamping parts 11, so that above-mentioned tapered portion 9 is with identical by the inclination of the very little tapered portion S3 of the inclination that crest line constituted of clamping section 8 always.
The opposing party, the pin 5 shown in Figure 18 is that the structure of the pin on the pipe joint unit among the 5th embodiment 15 is carried out product after the local deformation.Clamping section 8 on this pin 5 can deeper be deep into the surface of pipeline 2 than the clamping section on the aforementioned pin.That is to say that be deep into the tapered portion 9 on surface of pipeline 2 and the clamping section 8 that the depression in the surface portion of the pipeline 2 that produced by tapered portion 9 is fixed along with the wedging of pin 5, both are the shape of the semicircle conical surface of same integral body; Simultaneously, with respect to the shaft axis of through hole 7, the circular cone center line that makes this semicircle conical surface produces some inclinations slightly along the direction of axis line of pipeline 2.Like this, along with the wedging of pin 5, the pipeline 2 depression in the surface portions that clamping section 8 further is deep into produced by tapered portion 9; Simultaneously, force pipeline 2 to move along producing on the direction of its insertion.Then, the front end of pin body 10 is exposed from through hole 7, this exposed portions serve 10a is carried out bending deflection after, pin 5 can not be transferred to.
According to Figure 17 and structure shown in Figure 180, the distortion that produces on the tube wall of pipeline 2 along with the wedging of pin 5 occurs lentamente, so, to the connection of carrying out between pipeline 2 and the joint body 4, can be more laborsaving.
In addition, respectively executing in the example above-mentioned, when one pipeline 2 is connected, is to be undertaken by the pin 5 of wedging one.But a plurality of through hole 7 of spacing of being separated by with regulation can be set on the circumferencial direction of joint body 4 also.The Connecting format of this moment is that all wedged pin 5 of each through hole 7 makes the surface of pipeline 2 produce compressive strain on a plurality of positions.
And, because above-mentioned pin 5 is constrained on the inside of through hole 7, this pin 5 is clamped between the depressed part and through hole 7 behind the compressive deformation on pipeline 2 surfaces tightly, so, specially install nut d with regard to there is no need in order to prevent deviating from of pin 5 this moment, perhaps makes the exposed portions serve 10a of pin body 10 carry out bending deflection.
According to the formation in the claim 1 to 6, when beaing pin, make the table of pipeline Face produces local compression, is fixed wtih the clamping section of pin at this compression position, Make thus pipeline obtain connecting. When this connected mode, as the pin that beats object, Just a velamen constrains in the monomer in the through hole, thus hitting power is concentrated, can Needn't brandish significantly hammer and beat with strength pin, also not requiring must when beaing pin The actuator, but who can finish simply, fast and effortlessly pipeline for The connection of joint body.
And, owing to needn't brandish significantly hammer, so even the work of pipeline Narrow space some, perhaps pipeline is more intensive, also can closely change places and carry out the connection of pipeline Operation. In addition, also little to the impulsive force of the support component that supporting pipeline, so should support The structure of parts just can be oversimplified.
Particularly, according to claim 2, along with the wedging of pin on the tube wall of pipeline The distortion that produces occurs lentamente, so when being connected to pipeline on the joint body, Can be more laborsaving.
According to claim 4, even arrange the spacing between through hole and the O type circle narrow by one A bit, can not be subjected on the position of O type circle owing to the wedging of pin on the tube wall of pipeline yet The impact of the deflection deformation that produces. The pipe joint of the size of like this, just can unnecessaryly rectificating Device also can obtain high sealing property.
According to claim 5, owing to have a dual sealing mechanism: with the outer surface of pipeline contacted O type circle and with the contacted core pattern dummy stack of side opposite, so, can guarantee very high sealing.
According to claim 6, because can be, be transformed into and make pipeline push the power of Sealing direction to a part of beaing in the hitting power of pin, so, can contact well between pipeline and the Sealing, thereby obtain high sealability.
Claims (10)
1. a pipe joint unit is characterized in that: comprising: joint body and pin; On this joint body, has the through hole of facing mutually in tangent direction with the part on the surface of insertion tube; Above-mentioned pin is in wedged this through hole; And, on above-mentioned pin, have tapered portion and clamping section; At the initial stage of pin being wedged through hole, this tapered portion contacts with the surface of pipeline, and along with pin is progressively wedged in the through hole, this tapered portion just is deep into the surface of pipeline gradually; Clamping section on the pin is fixed in the above-mentioned pipeline depression in the surface portion.
2. pipe joint unit according to claim 1 is characterized in that: the tapered portion that has slow inclination on above-mentioned clamping section; Along with the wedging of pin, this tapered portion can further be deep into above-mentioned pipeline depression in the surface portion.
3. pipe joint unit according to claim 1 is characterized in that: more leaning on the internal surface of inboard connecting tube portion than the through hole on the above-mentioned joint body, be provided with the O type circle that pipeline is sealed usefulness.
4. pipe joint unit according to claim 2 is characterized in that: more leaning on the internal surface of inboard connecting tube portion than the through hole on the above-mentioned joint body, be provided with managing the logical O type circle that seals usefulness.
5. pipe joint unit according to claim 3 is characterized in that: in the inside of above-mentioned joint body, be provided with the fuse of supporting the end of pipeline from the inboard.
6. pipe joint unit according to claim 4 is characterized in that: in the inside of above-mentioned joint body, be provided with the fuse of supporting the end of pipeline from the inboard.
7. pipe joint unit according to claim 3 is characterized in that: in the inside of above-mentioned joint body, be provided with the core pattern dummy stack, produce pressure between the internal surface of this core pattern dummy stack and pipe end and contact.
8. pipe joint unit according to claim 4 is characterized in that: in the inside of above-mentioned joint body, be provided with the core pattern dummy stack, produce pressure between the internal surface of this core pattern dummy stack and pipe end and contact.
9. pipe joint unit according to claim 1 is characterized in that: the inside at above-mentioned joint body is provided with Sealing, along with pipeline along moving on its direction of insertion, make by the sealing part to produce sealing between joint body and the pipeline; Simultaneously, make above-mentioned clamping section,, tilt a little, at this moment,, can force pipeline to produce and move along its direction of insertion along with the wedging of pin along the direction of axis line of pipeline with respect to the shaft axis of above-mentioned through hole.
10. pipe joint unit according to claim 2 is characterized in that: the inside at above-mentioned joint body is provided with Sealing, along with pipeline along the moving of its direction of insertion, make by the sealing part to produce sealing between joint body and the pipeline; Simultaneously, make above-mentioned clamping section,, tilt a little, at this moment,, can force pipeline to produce and move along its direction of insertion along with the wedging of pin along the direction of axis line of pipeline with respect to the shaft axis of above-mentioned through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96105134 CN1163367A (en) | 1996-04-19 | 1996-04-19 | Pipe joint unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96105134 CN1163367A (en) | 1996-04-19 | 1996-04-19 | Pipe joint unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1163367A true CN1163367A (en) | 1997-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96105134 Pending CN1163367A (en) | 1996-04-19 | 1996-04-19 | Pipe joint unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163367A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686927A (en) * | 2009-10-28 | 2012-09-19 | 克劳泽工业发展有限公司 | Pipe coupling with seal pressing device |
| CN104487752A (en) * | 2012-05-30 | 2015-04-01 | R·迈赫尔 | Pipe fitting |
| CN107532635A (en) * | 2015-06-29 | 2018-01-02 | 株式会社海莱客思 | Fixture construction |
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1996
- 1996-04-19 CN CN 96105134 patent/CN1163367A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102686927A (en) * | 2009-10-28 | 2012-09-19 | 克劳泽工业发展有限公司 | Pipe coupling with seal pressing device |
| CN102686927B (en) * | 2009-10-28 | 2015-05-20 | 克劳泽工业发展有限公司 | Pipe coupling with seal pressing device |
| CN104487752A (en) * | 2012-05-30 | 2015-04-01 | R·迈赫尔 | Pipe fitting |
| CN104487752B (en) * | 2012-05-30 | 2016-10-05 | R·迈赫尔 | pipe fitting |
| US9890881B2 (en) | 2012-05-30 | 2018-02-13 | Ralph MEHR | Pipe fitting |
| CN107532635A (en) * | 2015-06-29 | 2018-01-02 | 株式会社海莱客思 | Fixture construction |
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