CN1070740A - The fiber optic cables that metal tube coats - Google Patents
The fiber optic cables that metal tube coats Download PDFInfo
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- CN1070740A CN1070740A CN92105430A CN92105430A CN1070740A CN 1070740 A CN1070740 A CN 1070740A CN 92105430 A CN92105430 A CN 92105430A CN 92105430 A CN92105430 A CN 92105430A CN 1070740 A CN1070740 A CN 1070740A
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Abstract
A kind of joint that fiber optic cables are connected with a device engagement device of being used for; The fiber optic cables that a kind of flexible metal hose coats comprise a flexible metal hose, and a light cable plug passes this pipe, and this Guan Yuyi equipment is connected; One relaying contact maker is used for the connection between the inhomogeneity optical cable; And, the fiber optic cables that a seamless metal pipe coats, it comprises: a solid drawn tube, a fibre-optical mandrel passes this pipe, and this pipe is used in interior wiring of long distance.Above-mentioned joint links to each other with the fiber optic cables that flexible metal hose coats, and this optical cable links to each other with the fiber optic cables that solid drawn tube coats by the relaying contact maker again.Certain part of joint is a kind of insulator, isolates so that form electricity between metal tube and the device engagement device.
Description
The present invention relates to a kind of fiber optic cables that have the metal tube that wherein extends through optical fibre core, the fiber optic cables that particularly a kind of metal tube coats, an end of this optical cable has a joint, to be connected with another root fiber optic cables or to be connected with optical communication equipment.
Relevant with the content of following each patented claim in this announcement with claimed the present invention:
National applications day open day of application number publication number
Japan 1988.6.13 63-143593 1-312517 1889.12.18
Japan 1990.2.8 2-27163 3-231707 1991.10.10
Japan 1990.3.12 2-58185 3-260607 1991.11.20
Japan 1990.8.30 2-226450 4-109206 1992.4.10
Japan 1991.7.5 3-165526
Japan 1991.7.5 3-165527
Japan 1991.7.5 3-165528
Japan 1991.11.22 3-307414
Japan 1992.5.19 4-126430
Present widely used optical communication cable has been showed many more traditional more superior performances of electric wire communication cable; comprise anti-electromagnetic noise interference (influence); the high transmission capacity that simple optical fiber had; not disturbed by signal, sort signal disturbs usually to contact because of the live wire of jumper cable between cable and for example high-tension cable or instrument and so on and takes place.
Commercially available fiber optic cables with above-mentioned advantage can be divided into two classes.One class comprises a core assembly, this assembly is to be made of fuse and clad that quartz or plastics constitute, but also has the thin resinous coat of one deck as undercoat, on this core assembly, be coated with the last layer organic polymer then more for the second time, thereby form a kind of fiber optic cables of polymer overmold, this class optical cable is for example disclosing in the Japanese Laid-Open Patent Application 142,308/1983 and 263,104/1985 to some extent.Another kind of is to have replaced above-mentioned organic polymer as the coated second time with metal tube, and the fiber cores sub-component extends through this metal tube, forms the fiber optic cables that a kind of metal tube coats thus.
Must be provided with one on the fiber optic cables and be used for the joint that is connected with communication apparatus.This joint must meet given standard (for example, JIC5973 " F04 type single-core fiber joint ") Figure 24 a and show an example that has a polymer-clad optical fiber cable of this joint, and Figure 24 b shows the amplification view of this joint.Please note that Figure 24 b shows the cut-open view of the joint shown in Figure 24 a, this cut-open view is along being parallel to plan and comprising the planar interception of the axis of fiber optic cables 19.The core bar 9 of optical cable 19 passes a hoop 12 and fixing with it.The core assembly 10 that comprises the undercoat of core bar 9 also fixes with hoop 12.Bind round the center pit on the medial flange 11e of 12 extend throughs, one connector seat 11 since its outboard flanges 12a and this medial flange 11e near, bind round 12 to right-hand mobile so can stop.The inward flange 11e of this connector seat 11 is positioned at the middle part between its front end (right-hand, with regard to this figure thirty years of age) and its rear portion (left) opening substantially.The front end of one stop collar 7 stretches into the rear aperture of this connector seat and is tight against a spiral compression spring 14, and this compression spring 14 props up hoop 12 abuts against on this medial flange 11e its outboard flanges 12a.Like this, hoop 12 is pressed towards right-hand usually.
Be formed with a pair of crescent lug boss 7a, 7b on the outer peripheral face of stop collar 7, this is to constitute by the groove of leaving on a flange shape lug boss that forms on the outer peripheral face of a cover parallel to each other to the crescent lug boss, this is fitted among groove 11a, the 11b of the slit-shaped on the connector seat 11 lug boss 7a, 7b, thereby makes stop collar 7 and connector seat 11 be unified into an integral body.The inside surface of one interstitial loop 22 combines with the outer peripheral face of the rearward end of stop collar 7.The surrounding layer 19a of fiber optic cables 19 is clamped and is fixed on the less rear end of the external diameter of this interstitial loop 22 with set collar 21.With this interstitial loop 22, an end shield of the strip off of set collar 21 and fiber optic cables is lived with a rubber sleeve 20.A handle 15 of being made by synthetic resin is slidingly installed on this rubber sleeve 20 and connector seat 11.Connector seat 11 has the tongue piece 11 that cooperates in the opening that is installed in this handle 15, and like this, handle 15 just connects in aggregates with connector seat 11.The used material of each parts is respectively: cover 20 is made by synthetic rubber usually, and set collar 21 is made by stainless steel or brass, and interstitial loop 22 is made of aluminum, and stop collar 7 is made by brass, and volute spring 14 is made by steel or stainless steel.
Figure 24 c shows the profile of connector seat 11 and stop collar 7 separately the time.As seen from the figure, meniscate lug boss 7a, 7b outwards protrude from the outer surface of stop collar 7, and connector seat 11 is provided with groove 11a, the 11b of slit-shaped to hold these bossings.In addition, be formed with on the connector seat 11 a pair of relative to each other, always arrive continuously this connector seat the rear end perforate elongated slot or the seam 11c.When the cylindrical portion that is positioned at crescent lug boss 7a, 7b the place ahead of stop collar 7 was inserted the back perforate of connector seat 11, these lug bosses 7a, 7b just forced this elongated slot 11c to open.Like this, though their external diameter greater than the internal diameter of this after-opening, they also can enter this after-opening.Just at the front end face of this stop collar 7 before the bottom of this after-opening, crescent lug boss 7a, 7b have entered among slit-shaped slot 11a, the 11b of connector seat 11, so, the elastic reaction of connector seat 11 makes seam 11c and after-opening return to their position more closely, thereby makes connector seat 11 and stop collar 7 be connected into a integral body shown in Figure 24 b.
Figure 25 a-25d has schematically shown a joint shown in Figure 24 b has been fixed to process on the fiber optic cables 19.This process begins earlier fiber optic cables 19 to be passed cover 20, set collar 21, and interstitial loop 22, stop collar 7 and volute spring 14(Figure 25 are a).Surrounding layer with optical cable 19 ends removes then, exposes high tensile line 23, core assembly 10 and core bar 9(Figure 25 b).On core bar 9, coat cementing agent, make it pass the corresponding opening that binds round on 12 then, and fuse with it.This hoop 12 is made by stainless steel usually, and its end face also must be made smooth finish milled processed (Figure 25 c).Subsequently, make hoop 12 pass opening on the medial flange 11e of connector seat 11, then, the after-opening that volute spring 14 is inserted plug section 11 up to one end or right-hand member by bind round 12 be resisted against on the connector seat 11 till.The other end that the after-opening that again stop collar 7 is inserted connector seats 11 props up spring 14 is a left end, and compresses into inwards up to crescent lug boss 7a, 7b with till slit- shaped slot 11a, 11b on the connector seat 11 is meshed.
Above-mentioned process provides the subsidiary fiber optic cables 19 that joint is arranged on it, and its profile is shown in Figure 25 d.If necessary; Also one handle 15 can be installed on it.Shown in Figure 25 d, can be with the connector seat 11 of joint with press-fit pack into the rear end or the left end opening of handle 15, owing to the synthetic resin material that is used for handle 15 has enough flexibilities its inner space is enlarged, therefore, can make handle 15 and connector seat 11 be connected into a integral body shown in Figure 24 b.
Another kind of or second kind of substitute mode is, connector seat 11 is turned over 90 ° so that crescent lug boss 7a, 7b on the stop collar 7 can be moved along this paired seam 11c from position shown in Figure 24 c around its axis, when they move to groove 11a, plane, 11b place, crescent lug boss and groove 11a, 11b have 90 ° angle intervals, connector seat 11 is turned over 90 ° again so that make crescent lug boss 7a, 7b fit into slit- shaped slot 11a, 11b, meanwhile utilize the U-shaped of pair of opposing to stitch the structure elasticity that 11c provided and make the expansion of connector seat.
Another substitute mode is that stop collar 7 and connector seat 11 screw threads are fixed (seeing Japanese Laid-Open Patent Application 129,605/1986).
The shortcoming of the fiber optic cables that have joint of above-mentioned prior art is the more parts of its needs, comprise cover 20, set collar 21, interstitial loop 22, stop collar 7, volute spring 14 and bind round 12, therefore relatively more expensive, and because interstitial loop 22, set collar 21 and cover 20 must be installed in the position, rear of stop collar 7, so fiber optic cables 19 are cumbersome and time-consuming with being connected of joint.
It is above-mentioned that no matter which kind of makes in stop collar 7 and the connector seat 11 joining substitute modes, stop collar 7 must relatively rotate around the axis of connector seat 11 with connector seat 11, to determine whether crescent lug boss 7a, 7b on the stop collar 7 are meshed with slit-shaped slot (opening) 11a, 11b after stop collar 7 directly is pressed into connector seat 11, perhaps for crescent lug boss 7a, 7b are aimed at slit-shaped slot (opening) 11a, 11b.Even when crescent lug boss 7a, 7b not with slit-shaped slot (opening) 11a, 11b on time because they are subjected to the extruding of the restoring force of connector seat 11, their are rotated.On the other hand, after crescent lug boss 7a, 7b and slit-shaped slot (opening) 11a, 11b engagement,, also must apply bigger power if desire to make crescent lug boss 7a, 7b and slit-shaped slot (opening) 11a, 11b to throw off.Yet, because this power differs very little with making crescent lug boss 7a, 7b with the size that slit-shaped slot (opening) 11a, 11b aim at required power, so the time accidentally will occur to make stop collar 7 turn over head with respect to connector seat 11 owing to be difficult to determine whether be meshed between crescent lug boss 7a, 7b and groove (opening) 11a, the 11b in assembling, so that make crescent lug boss 7a, 7b and groove (opening) though 11a, 11b once meshed in rotary course but belonged to disengagement, perhaps may make both be in not engagement.In addition, when a unfamiliar operator is connected this joint or throws off with an equipment, might impose torsion or pulling force to overlapping 20, like this, stop collar 7 and connector seat 11 are thrown off, cause that core assembly 10 broken or make core assembly 10 or core bar 9 to break.
Though the fiber optic cables of polymer overmold are showing many advantages aspect the optical communication cable, but because this optical fiber all is to be made of the lower material image-stone English of physical strength, plastics, resin, organic polymer etc., so its pull resistance, laterally for example bending resistance is all very low for crushing resistance or deformation resistance., also will use in this optical cable, Kai Pale (Kepler) or plastics high intensity line linear elements such as (resembling teflon (Teflon), FRP and so on) for example is to improve its intensity for this reason.Especially, when this optical cable is mounted to pole line, just require it to have very high pulling strengrth, just must change highstrenghtpiston's linear device into steel wire, though the core bar of transmission signals is the primary element of optical cable, always cause optical cable to become thicker and heavier behind the employing steel wire.
On the contrary, the metal tube fiber optic cables that coat have comprised that one wherein places the metal tube of core assembly.Though the optic cable diameter that metal tube coats is very little, it has shown stronger pull resistance, horizontal crushing resistance and bending resistance, and also weight is lighter.Because be difficult to it is bent to less radius, therefore the phenomenon of optical cable fracture to cause core assembly yet to rupture can not take place, like this with regard to be beneficial to it carried out operation.So, be convenient to install and connect up.
The fiber optic cables that commercially available ready-made metal tube coats have two classes, i.e. the fiber optic cables that the fiber optic cables of solid drawn tube coating and flexible pipe coat.These optical cables can be connected with other optical cables or communication apparatus in the following manner:
(1) hold-down nut of a joint is fixedlyed connected with an end of the solid drawn tube of the fiber optic cables of this solid drawn tube coating;
(2) hold-down nut of a joint is fixedlyed connected by an end of the flexible pipe of the fiber optic cables of a connector and flexible pipe coating; Or
(3) end of a flexible pipe is fixedlyed connected by an end of the solid drawn tube of the fiber optic cables of a connector and solid drawn tube coating, the hold-down nut of a joint is fixedlyed connected with the other end of this flexible pipe by a connector.
The advantage of the fiber optic cables that solid drawn tube coats is that its core assembly and the external world isolate fully, but its flexibility poor than the fiber optic cables of flexible pipe coating.On the other hand, the sealing of the fiber optic cables of flexible pipe coating is relatively poor.Therefore, recent way is, the long distance wiring of optical communication cable mainly is the fiber optic cables that adopt solid drawn tube to coat, and end of cable is connected with a joint according to above-mentioned (3) described mode.In other words, at need optical cable is curved the very position of minor radius, the fiber optic cables that a flexible pipe is coated are connected with the fiber optic cables that this solid drawn tube coats by a connector.
The electrical insulating property of the fiber optic cables that metal tube coats is very poor.Specifically, though being included in its inner fiber cores sub-component is made by insulating material, thereby be subjected to that signal is dried scratches as its Shi Buhui that contacts with a live line, but the metal tube that is provided in a side of the outside is a good conductor, like this, it just may be with electric current by the joint that is connected with the end of this metal tube lead equipment or device.This electric current can damage this equipment or device.Therefore, people wish can with insulating material for example organic polymer cover this metal tube, but thick overlayer can reduce the flexible of optical cable or increase its weight.On the other hand, Bao overlayer but may be because of frequent crooked or stretch or break near causing with other objects.
First purpose of the present invention provides the fiber optic cables that a kind of its inner core assembly with higher mechanical strength can impaired metal tube coat; Second purpose of the present invention is to prevent that electric current from flowing to an equipment that is attached thereto from the fiber optic cables that metal tube coats by a plus couplings; The 3rd purpose is to reduce the quantity of the parts of the fiber optic cables that the metal tube that has joint coats, to help being connected of optical cable and this joint; The 4th purpose is to make this joint and this optical cable positive connection, in case throw off after they connect mutually again.
The fiber optic cables that a kind of metal tube according to a first embodiment of the invention coats comprise the joining metal connector 2 of one and one equipment; One has the fiber optic cables 3,6,10 of metal tube clad 6; One insulator bracket 12, an end that is used to support the optical fiber 10 outside the end that is positioned at this metal tube clad 6 also imports the opening that one of this metal connector 2 is accepted optical fiber with the end of this optical fiber; One spring part 14 is used for the direction pushing of this hoop 12 towards this metal connector 2 of extend through; The insulating base 11,15 that one one end and this metal connector 2 fix is used to support this insulator bracket 12 and makes it and can move along above-mentioned direction; And the fiber cable joint 7,8 of a metal material, the other end of one end and this insulating base 11,15 fixes, and its other end fixes with the metal tube clad of fiber optic cables 3,6,10 at least.Above-mentioned each numbering refers to each corresponding element or parts that hereinafter reach first embodiment that Fig. 1 will illustrate.
Connect according to this structure, pedestal the 11, the 15th, insulator is in order to guarantee metal tube and to be attached thereto the equipment that connects or the good insulation performance between the device.For instance, if it contacts with live line, do not have electric current and flow into this equipment or device and cause damage.Because optical fiber 10 is coated the lightweight characteristics so it has high strength by metal tube.Like this, just can obtain a kind of optical fiber (cable) of high reliability.
At (shown in Fig. 2,7 and 8) in several versions of this first embodiment, a hold-down nut 8 that is fixedly connected on the pedestal 11,15 is made of insulating material.In another kind distortion (Fig. 3), an optical connector 7 is made of insulating material, and the one end is fixedlyed connected with a hold-down nut 8, and its other end fixes with the metal tube clad of fiber optic cables 3,6,10 at least.In also having a kind of distortion (Fig. 4), one makes connector that metal tube 6 is connected with pedestal 11,15 16 be made of insulating material.
The fiber optic cables that coat according to a kind of metal tube of second kind of embodiment of the present invention comprise that one has the fiber optic cables 19B of metal tube clad 6; One connector seat 11, it has an open front and an after-opening, and the medial flange 11e of this inner space is stretched in an inner space and that communicates with this two opening; One hoop 12, it comprises that one is pressed against outboard flanges 12a and a central opening of the core bar 9 of extend through fiber optic cables 19B wherein on this medial flange 11e, and the central opening that limited by this medial flange 11e of extend through extends to open front from the after-opening of connector seat 11; End is pressed against the spiral compression spring 14 on this hoop 12 one by one, is used for hoop 12 from the direction pushing of after-opening to open front; One stop collar 7, the rear end of its front end and this connector seat 11 links, and offset with the other end of this helical compression spring 14, its rear end has the bigger opening of a diameter so that fiber optic cables 19B passes, and it also has one from described opening forward end is extended and the core assembly 10 of these fiber optic cables 19B therefrom passes central opening.Above-mentioned each numbering is meant hereinafter each corresponding part or parts of second embodiment that will illustrate to 9c with Fig. 9 a.
According to said structure, the clad 3,6 of fiber optic cables 19B and the rear end of stop collar 7 fix, and the front end of stop collar 7 links with the connector seat of supporting hoop 12, like this, just saved the interstitial loop of the prior art 22 shown in Figure 24 b, set collar 21 and rubber sleeve 20 make the component number of this structure reduce to some extent.The cost that had so both reduced joint also helps assembling.
The 7c of locking projections portion, 7d that (Fig. 9 a is to 9c) in a second embodiment, stop collar 7 include the 7a of mesh bulge portion, 7b and outwards protrude from the front end outer surface; Connector seat 11 includes engaging groove 11a, the 11b that matches with the 7a of this mesh bulge portion, 7b, with each elongated slot 11c, this elongated slot 11c opens to after-opening, to hold and to guide the 7c of this locking projections portion, 7d to move and stop the 7c of this locking projections portion, the 7d axis rotation around stop collar 7 to the direction of open front from after-opening.The result, as long as once going on foot the after-opening that the front end of stop collar 7 can be pressed into connector seat 11, and the 7c of locking projections portion, 7d are aimed at this elongated slot 11c, make the 7a of mesh bulge portion, the 7b of stop collar 7 cooperate engaging groove 11a, the 11b that embeds connector seat 11, thereby finish the connection of stop collar 7 and connector seat 11.Consequently, elongated slot 11c can stop lug boss 7c, 7d rotation, just makes stop collar 7 no longer can rotate relative to connector seat 11 thus.The braking action of the 7a of mesh bulge portion, 7b and engaging groove 11a, 11b is enough big, so that when stop collar 7 draws in the opposite direction in the side that inserts connector seats 11 with stop collar 7 stop collar 7 and connector seat 11 is thrown off.
In the distortion of second embodiment (Figure 11 a and 11b), stop collar 7 comprises from its anterior outer peripheral face to the 7a of mesh bulge portion, the 7b of outer lug, also comprises direction recess 7g, 7h that the direction of extending from its front end face along central opening is extended; Connector seat 11 comprises engaging groove 11a, 11b that matches with the 7a of this mesh bulge portion, 7b and the 11j of locking projections portion, the 11k that matches with this direction recess 7g, 7h, they are moved under the guiding of the bearing of trend of direction recess 7g, 7h, and stop them to rotate around the axis of stop collar 7.The result, as long as with a step, the front end of stop collar 7 is pressed into the after-opening of connector seat 11, direction recess 7g, 7h are aimed at the 11j of locking projections portion, 11h, the 7a of mesh bulge portion, the 7b of stop collar 7 cooperate engaging groove 11a, the 11b that embeds connector seat 11, just can finish connecting of stop collar 7 and connector seat 11.Consequently the 11j of locking projections portion, 11k can stop direction recess 7g, 7h rotation, and therefore, stop collar 7 can't be with respect to 11 rotations of connector seat.The braking action of the 7a of mesh bulge portion, 7b and engaging groove 11a, 11b is enough big, if so that just can't make itself and 11 disengagements of connector seat when drawing stop collar 7 in the opposite direction with the side that stop collar is inserted connector seat 11.
Below in conjunction with the explanation that accompanying drawing is done several embodiments of the present invention, it is more clear that the other objects and features of the invention will be able to.
Fig. 1 is the longitudinal sectional drawing of first embodiment of the invention;
Fig. 2 is the longitudinal sectional drawing of first remodeling of first embodiment;
Fig. 3 is the longitudinal sectional drawing of second remodeling of first embodiment;
Fig. 4 is the longitudinal sectional drawing of the 3rd remodeling of first embodiment;
Fig. 5 is the longitudinal sectional drawing of the 4th remodeling of first embodiment;
Fig. 6 is the longitudinal sectional drawing of the 5th remodeling of first embodiment;
Fig. 7 is to wherein the longitudinal sectional drawing of an essential part after the further variation of the 5th remodeling;
Fig. 8 is wherein the longitudinal sectional drawing of an essential part after another of the 5th remodeling changed;
Fig. 9 a is the longitudinal sectional drawing of second embodiment of the invention;
Fig. 9 b is the decomposition diagram of second embodiment shown in Fig. 9 a, shows the outward appearance of several sections;
Fig. 9 c is the front elevation of an end face of the stop collar 7 shown in Fig. 9 b;
Figure 10 is the decomposition diagram of first remodeling of second embodiment, shows the outward appearance of several sections;
Figure 11 a is the decomposition diagram of second remodeling of second embodiment, shows the outward appearance of several sections;
The cut-open view of Figure 11 b " B-B " line in Figure 11 a;
Figure 12 is a front elevation of an end face according to the stop collar of second remodeling of second embodiment;
Figure 13 a is one at the side view flexible tubing shown in Fig. 16, through amplifying, and wherein part is broken away;
Figure 13 b be the flexible tubing 6 shown in Fig. 1, the longitudinal sectional drawing through amplifying;
Figure 14 is skeleton view formed body 61, through amplifying that a band plate 60 and utilizes punching operation to be shaped by this band plate 60, and the both is as the material that forms the flexible tubing 6 shown in Fig. 1;
Figure 15 is about to side view as the pipe of the flexible tubing 6 shown in Fig. 1;
Figure 16 a is the side view of a ring that is formed by flexible tubing shown in Figure 15 6;
Figure 16 b is the vertical view of a ring that is formed by flexible tubing shown in Figure 15 6;
Figure 17 a is the side view of a minor diameter ring, and this ring is to form with flexible tubing 6 drawns shown in Figure 16 a;
Figure 17 b is the vertical view of a minor diameter ring, and this ring is to utilize flexible tubing 6 drawns shown in Figure 16 b to form;
Figure 18 a is the side view of the ring that formed by the flexible tubing shown in Figure 17 a of expression, and this ring begins to open under stretching;
Figure 18 b is the vertical view of the ring that formed by the flexible tubing shown in Figure 17 b of expression, and this ring begins to open under stretching;
Figure 19 is a side view as the pipe of the flexible tubing 6 shown in Fig. 1;
Figure 20 a is the side view of flexible tubing 6 shown in Figure 19, and this pipe is bent under the axle pressure that is applied;
Figure 20 b is the vertical view of flexible tubing 6 shown in Figure 19, and this pipe is bent under the axle pressure that is applied;
Figure 21 a is the side view of the flexible tubing 6 shown in Figure 20 a, and this pipe begins to form a ring under pressure;
Figure 21 b is the vertical view of the flexible tubing 6 shown in Figure 20 b, and this pipe begins to form a ring under pressure;
Figure 22 a is the side view of a ring that is formed by the flexible tubing shown in Figure 21 a;
Figure 22 b is the vertical view of a ring that is formed by the flexible tubing shown in Figure 21 b;
Figure 23 is the longitudinal sectional drawing through amplifying that a pipe and as the flexible tubing 6 shown in Fig. 1 is included in plug wherein, and both are in by bending state;
Figure 24 a is a kind of side view of (prior art) fiber optic cables usually;
Figure 24 b is the shank that is used for the fiber optic cables shown in Figure 24 a, is the cut-open view of amplification that is parallel to the plane on Figure 24 a plane by;
Figure 24 c is the decomposition diagram of the joint shown in Figure 24 b, has represented the outward appearance of its several sections; And
Figure 25 a to 25d is a series of side views of expression one operation, according to this operation, before the fiber optic cables shown in the construction drawing 24a, earlier a joint is installed to the end of this cable.
The description of most preferred embodiment
First embodiment
Fig. 1 shows an end of fiber optic cables that coat according to the metal tube of first embodiment.The other end that is understood that this optical cable (fiber optic cables) is also made with similar approach.One optical cable body comprises the cable 19A that a solid drawn tube coats, and this optical cable comprises that one has applied the PV(tygon) solid drawn tube 4 of resin 3a.Utilize dog screw 18a, 18b, a Trunk Connector 5 is fixedly connected on this solid drawn tube 4.The other end of this Trunk Connector 5 utilizes dog screw 17c, 17d to be fixedly connected on the end that one of optical cable 19B that a flexible tubing coats has applied the flexible tubing 6 of PV resin 3b.The other end of this flexible tubing 6 utilizes dog screw 17a, and 17b is fixedly connected on an end of a joint 7.Be bolted with a hold-down nut 8 on the other end of this joint 7.One optical fiber component 10 comprises that a plug 9 and that is formed by a fuse and a clad thereon approaches the undercoat that resinous coat is formed, this assembly extend past solid drawn tube 4, joint 5, flexible tubing 6, joint 7 and hold-down nut 8 by one.Must be pointed out that flexible tubing 6 will keep its flatness along its length.
One joint comprises a cylinder 11.Insert a hoop 12 in the front portion of this cylinder 11, in its rear portion, then inserted a sleeve pipe 13.The front end of this hoop 12 stretches out cylinder 11.One spiral compression spring 14 is set between this hoop 12 and this sleeve pipe 13.This binds round 12 spline fitted in this cylinder 11, and it comprises that one is supported on a flange on the inward flange 11a on the cylinder 11.This cylinder 11 passes an attaching nut 15.
This attaching nut 15 shown in Fig. 1 is bolted in and connects contact maker 2, and this contact maker is to be made of metal, and is fixed on a communication apparatus (not drawing among the figure).Owing to be to be threaded, when having tightened nut 15, the inward flange 15a on the attaching nut 15 just abuts against on the outward flange of cylinder 11, thereby this cylinder 11 is fastened to connection contact maker 2.In its back-end, this cylinder 11 is formed with external thread 11c on its excircle, and it is engaged in the internal thread of hold-down nut 8.The elastic force of spiral compression spring 14 will make hoop 12, and the axial location along connecting contact maker 2 holds out against on the sheath 120 on the communication apparatus, and thus, the front end face of hoop 12 closely is contacted with the front end face of the sheath 120 of this communication apparatus.Be fixed on the axis of the plug 9 of hoop 12, must aim at mutually with the axis of the plug 90 that is fixed on sheath 120, its precision is the order of magnitude of 1 to 2 μ.
Be positioned at the metal tube of optical cable, or flexible tubing 6, with being connected of communication apparatus be joint 7 between the contact maker 2.Hold-down nut 8 and cylinder 11.In first embodiment, cylinder 11, hoop 12 and attaching nut 15 are made by a kind of insulating material, this material selection have a wear-resisting and high-intensity polycarbonate.So, the mechanical connection from flexible tubing 6 to connection contact maker 2, insulator 11 provides electric insulation functions.So by flexible tubing 6, this abnormal electric current can not pass to and connect contact maker 2 if any an abnormal electric current.The volume resistivity of described insulator＞10
13Ω cm(is when 50% relative humidity and 23 ℃ of temperature), dielectric strength＞100KV/cm(is according to the short time technology of 3.17mm thickness).Cylinder 11 usefulness be to have a wear-resisting and high-intensity makrolon material, hoop 12 shown in Fig. 1 and attaching nut 15 then can adopt any other resin, pottery or their potpourri as manufacturing materials.Will be understood that these parts will have physical strength to a certain degree, and wish that its pulling strengrth should be equal to or greater than 150kgf/cm
2
In first embodiment, be used in combination the optical cable 19B that optical cable 19A that solid drawn tube coats and flexible tubing coat, should be appreciated that the present invention is applicable to that too joint 7 directly is fixed on the optical cable 19A that solid drawn tube coats or only is connected in the occasion of the optical cable 19B that flexible tubing coats separately.
Also have, although in the embodiment shown in fig. 1, hoop 12, attaching nut 15 and cylinder 11 are made by insulating material, might not do this selection, and also hold-down nut 8 usefulness insulating material are made as shown in Figure 2.At first remodeling shown in Figure 2, hold-down nut 8 is to make of the phenolic aldehyde of filling glass fibre-formalin resin.
In second embodiment shown in Figure 3, joint 7 usefulness tygon are made as insulating material.
Come though draw among the figure, be positioned at insulator neighbouring metal tube or parts any and that this metal tube is electrically connected, the connecting line of a ground connection is preferably arranged.
Fig. 4 has represented the 3rd remodeling of first embodiment.In this remodeling, an isolating joint 16 is used for the optical cable 19B that flexible tubing coats is linked to each other with cylinder 11.Like this, used joint 7 and hold-down nut 8 are integrally molded thereby joint 16 with two kinds of functions replaces in Fig. 1 structure.Need connect the connection contact maker of tearing open 2 repeatedly and have permanance for making, this contact maker 12, hoop 12 and attaching nut's 15 usefulness metals are made.In this example, joint 16 usefulness tygon are made, and connect on the contact maker 2 to prevent that abnormal electric current from flowing to from flexible tubing 6.It is to be noted that in this 3rd remodeling, the used amount of parts of this joint has reduced.
Fig. 5 has represented the 4th remodeling of first embodiment, and in this remodeling, the hold-down nut 8 shown in Fig. 1 makes a nut that has a back cover 8a into, and this back cover can be fixed solid drawn tube by the calking operation.Fig. 5 shows a kind of using method, joint is connected on the optical cable 19B of flexible tubing coating, and therefore, the calking function of cover 8a is not used.
Fig. 6 has represented the 5th embodiment, and it shows the another kind of method of using joint shown in Figure 5.In this embodiment, cover 8a is by calking, so that solid drawn tube 4 is fixed on hold-down nut 8.Like this, joint shown in Figure 5 not only can be used for the optical cable 19B that flexible tubing coats, and can be used for solid drawn tube (Fig. 6).
Hold-down nut 8 shown in Fig. 5 and Fig. 6 is metalworks of a band cover 8a, and it can comprise a nut 8b or 8d and a caulking metal spare 8c or a 8e as separation member, and both can be threaded or integrally connect together by press fit by one.Shown in Fig. 7 and 8, when nut 8b and 8d are provided as an insulator, the cylinder 11 shown in Fig. 5 and, if required, the nut 15 that links to each other with cylinder 11 and bind round 12 and can form by metalwork.Shown in this example in, the thickness of solid drawn tube 4 is 0.2mm, and the thickness of the small diameter portion of caulking metal spare 8c, or the thickness of caulking metal spare 8e is 0.4mm.When solid drawn tube 4 was reinforced by metalwork 8c or 8e are carried out calking, solid drawn tube 4 had improved stretching, wall pressure or distortion as crooked tolerance.When needs carry out the calking (Fig. 6) of metal tube or do not need to carry out the calking (Fig. 5) of metal tube, can use the hold-down nut 8 that comprises cover 8a, 8c or 8e, so, just improved the applicability of the joint that has this cover.Consider strength factor, do not make filler member with insulating material.
Second embodiment
See also Fig. 9 a of expression second embodiment of the invention, wherein have the optical cable 19B that a flexible tubing coats plug 9 pass a hoop 12, and be connected thereon.The diameter of this plug 9 is about 125 μ m, the skim resin is arranged as undercoat on it, and to form a core assembly 10, this assembly also is fixed on the hoop 12.This hoop 12 is passed in the center pit that the inward flange 11e of a connector seat (plugframe) 11 go up to form, because an outward flange 12a of this hoop 12 is closely against on its inward flange 11e, thereby has prevented to the right mobile of this hoop 12.This inward flange 11e is located substantially on the midpoint between this front portion or right side perforate and this rear portion or the left side perforate.Have an end of a stop collar 7 to be fitted in this rear portion perforate, and supported an end of a spiral compression spring 14, so this stage clip will bind round 12 and push away to right-hand, this just will bind round 12 outward flange 12a and be closely against on the inward flange 11e.Like this, hoop 12 is pushed away to the right usually.
Leading section towards stop collar 7, on its excircle, be formed with a pair of crescent thrust 7a, 7b, this is by at a flange-like jut 7a who forms round the circumference of a sleeve part to jut, and the last fluting of 7b processes all parallel slots and forms.These crescent shape juts match with all slit-shaped elongated slot 11a, the 11b that form on connector seat 11, so, stop collar 7 and connector seat 11 integrally are connected together.This stop collar 7 is made by synthetic resin, and its shank is long such as the shank of the common stop collar shown in Figure 24 b.The rearward end of this stop collar 7 is formed with a perforate, and this pore diameter size is enough to make the synthetic resin crust 3b of the optical cable 19B that a flexible tubing coats to put in it with press fit; Dog screw 17a, 17b are screwed in the threaded hole that forms on this stop collar along the direction perpendicular to the axis of stop collar, and the point of these screws passes crust 3b, with flexible tubing 6 fix in position.
In this embodiment, length comprises the core assembly 10 that passes the flexible tubing 6 with a synthetic resin crust 3b than the optical cable 19B that short flexible tubing coats.Optical cable 19B's is flexible higher, has the compressive strength and the tensile strength of height.The optical cable 19A that one long solid drawn tube coats comprises that one is coated with the solid drawn tube 4 of one deck synthetic resin crust 3a, and this optical cable 19A links to each other with optical cable 19B by a Trunk Connector 5.It should be understood, however, that optical cable 19A and 19B form a continuous optical cable, the effect of this Trunk Connector 5 provides one respectively at crust 3a, solid drawn tube 4 and the crust 3b of optical cable 19A and 19B, the mechanical connection between the flexible tubing 6.
Fig. 9 b is stop collar 7 shown in Fig. 9 a and the outside drawing of connector seat 11 after taking apart, and Fig. 9 c shows the front end face of this stop collar 7.This stop collar 7 is provided with outwards outstanding crescent projection 7a, 7b along its circumference, and is provided with a pair of microscler lock tab 7c, 7d vertically between this two projection 7a, 7b and front end face.The position of this two lock tab 7c, 7d be along on the circumference between crescent projection 7a, 7b.Connector seat 11 has a pair of slit-shaped elongated slot 11a, the 11b that matches with crescent moon projection 7a, 7b, also has a pair of long nick 11c that matches with lock tab 7c, 7d, and this two long nick 11c continues relatively and with the rear portion perforate mutually along diametric(al).When lock tab 7c, 7d aim at two breach 11c, and the column part of front stop collar 7, that be positioned at crescent moon projection 7a and 7b is when inserting the rear portion perforate of connector seat 11, because the external diameter of crescent moon projection 7a, 7b is bigger than the internal diameter of the rear portion perforate of connector seat 11, so this two projection is closely attached on the limit of rear portion perforate.When continuation pushes connector seat 11 inwards with stop collar 7, the rear portion perforate of connector seat 11 is pushed open by crescent moon projection 7a, 7b, make breach 11c become big, thereby make crescent moon projection 7a, 7b can enter the rear portion perforate, and and then before the front end face of stop collar 7 is against the bottom of rear portion perforate, crescent moon projection 7a, 7b just enter among slit-shaped elongated slot 11a, the 11b of connector seat 11, thereby, the elasticity of connector seat 11 returns to their more approaching position with two breach 11c and rear portion perforate, finishes being connected between connector seat 11 and the stop collar 7 in mode shown in Fig. 9 a.After linking to each other like this, because the both ends of the surface by otch of crescent moon projection 7a, 7b are tight against the inside surface of two minor faces of breach 11a, 11b, and, because two breach 11c have pinned lock tab 7c, 7d, so stop collar 7 can not rotate.More particularly, the resistances that produce owing to cooperating between lock tab 7c, 7d and the breach 11c, stop stop collar 7 to rotate have strengthened.Crescent moon projection 7a, 7b are matched with slit-shaped elongated slot 11a, 11b, have propped up a desire is pulled out stop collar 7 from connector seat 11 power, and thus, unless the rear portion perforate of connector seat 11 is forced to expand, otherwise stop collar 7 can not be drawn out.
Figure 10 shows first remodeling of second embodiment.In this remodeling, axial long lock tab 7c, 7d shown in Fig. 9 b are replaced by round bump 7e, 7f.In other respects, this similar is in the structure shown in Fig. 9 b.
Figure 11 a shows second remodeling of second embodiment.In this remodeling, be formed with a pair of gathering sill 7g, 7h on the external peripheral surface of stop collar 7, this two gathering sill extend to along the direction of the axis that is parallel to this stop collar 7 from its anterior perforate be positioned at crescent moon projection 7a, 7b after a bit.The perforate 7i that forms in gathering sill 7g, 7h rear end is engaged in pawl 11j, the 11k(that will describe the back and sees Figure 11 b).On connector seat 11, in the plane perpendicular to a plane that forms by slit-shaped slotted hole 11a, 11b, this connector seat 11 is formed with pair of parallel and extends and be extended to the breach of its rear portion perforate in its axis, this defines a tongue piece 11h to breach.With the surperficial facing surfaces that forms this tongue piece 11h in, formed another and be similar to the tongue piece 11i of tongue piece 11h.Formed outstanding inwards pawl 11j, 11k(in the rear end of this two tongue piece 11h, 11i and seen Figure 11 b).
The gathering sill 7g, the 7h that form in alignment with stop collar 7 as pawl 11j, 11k on tongue piece 11h, the 11i of connector seat 11, and stop collar 7 is when inserting connector seats 11, the basal surface of gathering sill 7g, 7h forces pawl 11j, 11k outside, make tongue 11h, 11i away from each other, so that groove 7g, 7h guiding pawl 11j, 11k.Because the external diameter of crescent moon projection 7a, 7b is greater than the internal diameter of connector seat rear portion perforate, stop collar just is close to the limit of rear portion perforate.When stop collar 7 was pushed the connector seat, the rear portion perforate of connector seat 11 just was forced to strut, and breach 11c strengthens, and crescent moon projection 7a, 7b are entered in the rear portion perforate of connector seat 11.Just be close to before the end of the rear portion of connector seat 11 perforate at stop collar 7 front end faces, crescent moon projection 7a, 7b enter among slit-shaped slotted hole 11a, the 11b that forms on the connector seat 11, after this, the elasticity of connector seat 11 remains in their more approaching positions with breach 11c and rear portion perforate, thereby, connector seat 11 and stop collar 7 are linked together.Meanwhile, pawl 11j, 11k are matched with among the hole 7i that forms in groove 7g, 7h rear end, and thus, the elasticity of tongue piece 11h, 11i makes them turn back to their original position effectively, is snug fit among groove 7g, the 7h to guarantee tongue piece 11h, 11i.After linking to each other like this, because the both ends of the surface by otch of crescent moon projection 7a, 7b are resisted against on the inside surface of two minor faces of slotted hole 11a, 11b, and, also because tongue piece 11h, 11i are matched with groove 7g, 7h, stop collar 7 is matched with perforate 7i with pawl 11j, 11k, so can not rotated.Any direction applied force of stop collar 7 being pulled out from connector seat 11 along desire, all by because the engagement between crescent moon projection 7a, 7b and slit-shaped teat 11a, the 11b, and the engagement between pawl 11j, 11k and the two perforate 7i and propping up, therefore, it is big to remove unforced rear portion perforate support with connector seat 11, otherwise, stop collar 7 can not be pulled out.
In second embodiment and its first, second remodeling any, the latter half of xsect of connector seat 11 is rectangle basically, so, crescent moon projection 7a, 7b(see Fig. 9 b, 10 and 11a) shape can be set as shown in figure 12 rectangle, and Figure 12 is the front elevation corresponding to Fig. 9 c, the front end face of expression stop collar 7.When adopting this rectangular configuration, provided by cooperating between projection 7a, 7b and slit-shaped slotted hole 11a, the 11b, oppose that the resistances of stop collar 7 rotations have just increased more.
In this second embodiment and above-mentioned all remodeling thereof, can see that compare with the common device shown in Figure 24 b, the part number has reduced, and has so just saved spending, and help being connected between optical cable that metal tube coats and the joint.Because the existence of resistance above-mentioned then after they connect, as apply any external force that trends towards that they are relatively rotated or drawn back between them, can not be taken stop collar apart from the connector seat.
The description of flexible tubing 6
Figure 13 a shows one section and is used for first and second embodiment and above-mentioned their flexible tubing 6 of remodeling, and it is equivalent to the amount of a pitch of spiral winding.One pitch section comprises one than a major diameter part 64 and a smaller diameter portion 67.This is provided with one first annular side portions (end) 65 than major diameter part 64 at the one end, and this sidepiece stretches into this smaller diameter portion 67.Similarly, this smaller diameter portion 67 is provided with one second annular side portions 68 at the one end, and this sidepiece stretches into than major diameter part 64.Big and smaller diameter portion 64,67 is linked together by an annular junction surface 69.Shown in Figure 13 b, adjacent pipeline section 63 links together, and they can move along axis direction.In the zone that adjacent tubular segments links together, second annular side portions 68 leans against on first annular side portions 69 of adjacent pipeline section 63 basically, and this moment, second annular side portions 68 was positioned at than major diameter part 64.For making adjacent tubular segments 63 removable along axis direction, first annular side portions 65 and second annular side portions 68 be positioned at corresponding smaller diameter portion 67 and adjacent tubular segments than major diameter part 64, to reserve a L1 at interval with respect to the annular junction surface 69 that is in relative position.The external diameter of the smaller diameter parts 67 of the internal diameter of first annular side portions 65 is big, and a gap L 2 is arranged between the two, and the internal diameter of the external diameter of second annular side portions 68 comparison major diameter part 64 is little, and a gap L 2 is arranged between the two.The size in this gap is applicable to that adjusting flexible tubing 6 can crooked least radius.This flexible tubing 6 can form with punching operation as shown in figure 14.Specifically, a sheet metal strip plate 60 can be struck out the profiled member 61 of a serpentine transversal section, more such profiled member 61 be reeled spirally, to form flexible tubing.For helping punching operation and improving contact between first and second annular side portions 65,68, preferably to make first and second annular side portions 65,68 and junction surface 69 form according to the helix angle of spiral pipe.
Consult Figure 15, during beginning one flexible tubing 6 is supported on two on 2 6A and 6B, so that it remains on the horizontal level for 75cm.Shown in the vertical view of the side view of Figure 16 a and Figure 16 b, on this flexible tubing 6, form a ring L who has than long radius.Then, shown in the vertical view of the side view of Figure 17 a and Figure 17 b, then this flexible tubing 6 is applied the drawing stress of an along continuous straight runs effect to reduce the radius of this ring gradually.Finally, shown in the vertical view of the side view of Figure 18 a and Figure 18 b, reached the degree that in this flexible tubing 6, can not maintain a loop configuration, so this ring has become shape.A moment, radius γ that this ring had are called " ring releasing radius " before this distortion takes place.Band plate 60 is thicker, and the material of this band plate 60 is harder, and this flexible tubing diameter more then should be removed radius γ more greatly by ring in other words.Bend to the bending radius that surpasses permission for fear of plug 10, preferably make ring separate crack radius γ and be equal to or greater than 15mm.
On the other hand, as shown in figure 19, one section flexible tubing 6 is supported on two on 2 6C and 6D for 75cm, so that it remains on the horizontal level.Shown in the vertical view of the side view of Figure 20 a and Figure 20 b, when on this flexible tubing 6, applying a force of compression, when 2 of 6C and 6D are mobile in opposite directions gradually, this flexible tubing 6 completion " U " shape that just lets droop.Then, should " U " shape section M will reverse in the mode shown in the vertical view of the side view of Figure 21 a and Figure 21 b, finally, shown in the side view and Figure 22 b vertical view of Figure 22 a, this flexible tubing 6 forms a ring L, when this " U " shape section M reverses 90 ° with respect to the direction of the force of compression that applies, be somebody's turn to do radius-of-curvature (the bent radius that the becomes) R that " U " shape section M is presented, be called " the formation radius of ring ".The thickness of band plate 60 is thinner, and the material of this band plate 60 is softer, and then the radius of this flexible tubing 6 is littler, or first and second annular side portions 65,68 is overlapping littler, thereby the radius R that this ring can form is littler.Radius R that this ring forms is littler, this flexible tubing 6 flexible higher, and this helps respectively sentencing the usefulness of doing wiring with what this flexible tubing 6 was distributed in box.Preferably this ring radius R that can form is equal to or less than 200mm.
With respect to the external diameter of fiber cores sub-component 10, the internal diameter of this flexible tubing 6 is sizable, and this can allow core assembly 10 more freely move in this pipe 6.Because in order to form profiled member 61(Figure 14 of flexible tubing 6) tend to self is returned to linear from spiral fashion, this trend causes that producing an axial position that acts on this flexible tubing 6 stretches stress, this stress makes this pipe 6 that self is stretching.When not having external constraint to put on this flexible tubing 6, shown in Figure 13 b, first and second annular side portions 65,68 just contact with each other, like this, be subjected to making this pipe of time spent and will shrinking of an axial compressive force, but when being subjected to a tensile force, then do not having any elongation.When a flecition is applied on this flexible tubing 6, it will be with a mode bending as shown in figure 23, but, first and second annular side portions 65,68 will compress outside sweep each other forcefully, then both are separated from each other with interior at sweep, consequently: the not elongation in the outside, and produce a contraction in the inboard of pipe 6.This means: the total length of this pipe 6 will remain unchanged, and, because the internal diameter of pipe 6 obviously greater than the external diameter of core assembly 10, makes the core assembly 10 that is positioned at pipe 6 not be subjected to any stretching action influence basically.
Several examples of the fiber optic cables 19B of flexible tubing coating will be shown below.
(1) flexible tubing 6:
Internal diameter is 0.3mm, and external diameter is 4.6mm.Band plate 60 is the thick corrosion resistant plate of 0.2mm.
Ring is removed (destruction) radius γ: 34mm.
Ring forms radius R: 131mm.
Fibre-optical mandrel 10:
One quartz glass optical fiber plug 9, it is the core of 50 μ m and the surrounding layer of an external diameter 125 μ m that a diameter is arranged, and also has a resinous coat, makes its external diameter be 250 μ m.
(2) flexible tubing 6:
Internal diameter is 3.0mm, and external diameter is 4.6mm.Band plate 60 is the thick corrosion resistant plates of 0.2mm.
Ring is removed radius γ: 34mm.
Ring forms radius R: 131mm.
Fiber cores sub-component 10:
One quartz glass optical fiber plug 9, having a core and the external diameter that a diameter is 50 μ m is the surrounding layer of 125 μ m, also has a resinous coat, makes its external diameter be 150 μ m, also has a polyethylene coating in addition, makes its external diameter be 0.35mm.
(3) flexible tubing 6:
Internal diameter is 3.0mm, and external diameter is 4.6mm.Band plate 60 is the thick corrosion resistant plates of 0.2mm.Be added with PE coating 36 on the tube surface, make its external diameter be 5.0mm.
Ring is removed radius γ: 47mm.
Ring forms radius R: 163mm.
Fiber cores sub-component 10:
One quartz glass optical fiber plug 9, having a core and the external diameter that a diameter is 50 μ m is the surrounding layer of 120 μ m, also has a undercoat, makes its external diameter be 250 μ m.Have fiber optic cables 19B(that fiber optic cables 19A that joint, solid drawn tube coat and flexible tubing coat such as Fig. 1 to 5 and 9a shown in) several case representations of combination optical cable in down:
(4) the fiber optic cables 19A of solid drawn tube coating:
One soldering stainless steel (SUS304) is managed annealed PROCESS FOR TREATMENT, and so that a homogeneous texture to be provided, then this pipe being stretched as an external diameter is that 1.0mm, thickness are the solid drawn tube 6 of 0.15mm, coats the thick tygon of a 1mm (PV) coating 3a again on this pipe.
The fiber optic cables 19B that flexible tubing coats:
Flexible tubing 6: internal diameter is 3.6mm, and external diameter is 4.6mm.Band plate 60 is the thick stainless steel of 0.8mm (SUS304) plates.
Ring is removed radius γ: 34mm.
Ring forms radius R: 131mm.
Fiber cores sub-portfolio 10:
One quartz glass optical fiber plug 9, core diameter are 50 μ m, and it has an external diameter is the clad of 125 μ m, also has a resinous coat, make its external diameter be 250 μ m.
Joint 5: stainless steel (SUS304)
(5) the fiber optic cables 19A of solid drawn tube coating:
One soldering stainless steel (SUS304) is managed annealed PROCESS FOR TREATMENT, and so that a homogeneous texture to be provided, then this pipe being drawn into an external diameter is that 1.0mm, thickness are the solid drawn tube 4 of 0.15mm, coats the thick tygon of a 1mm (PV) coating 3A again on this pipe.
The fiber optic cables 19B that flexible tubing coats:
Flexible tubing 6: internal diameter is 3.0mm, and external diameter is 4.6mm.Band plate 60 is the thick stainless steel of 0.8mm (SUS304) plates.This tube-surface scribbles a PE coating 3b, makes its external diameter be 5.0mm.
Ring is removed radius γ: 47mm.
Ring forms radius R: 163mm.
Fiber cores sub-component 10:
One quartz glass optical fiber plug 9, core diameter are 50 μ m, and it has an external diameter to be the clad of 125 μ m; Add one deck resinous coat again, make its external diameter be 250 μ m.
Joint 5: stainless steel (SUS304)
One draws together the fiber optic cables 19B that fiber optic cables 19A that joint 5, solid drawn tube coat and flexible tubing coat at the combined light shown in Fig. 1 to 5 (fibre) cable wrap, it is when wiring distance is longer, the advantage of the fiber optic cables 19A that solid drawn tube coats is the intensity height, reduced diameter, weight and high-caliber sealing gland have been reduced, these advantages make it bear big load in this cable laying operating period, guarantee its physical strength, corrosion resistance and sealing simultaneously after this optical cable laying; On the other hand, it be connected with joint, it demonstrates the advantage of the fiber optic cables 19B that flexible tubing coats again to wiring distance more in short-term, be flexible height and physical strength height, these advantages help it and are connected with an optical communication equipment or other optical cable, and can guarantee the optical cable intensity at junction surface.In the fiber optic cables 19B that fiber optic cables 19A that solid drawn tube coats or flexible tubing coat, because fiber cores sub-component 10 is not the inwall that closely is contacted with metal tube 4,6, so, unless this metal tube 4,6 is cracked, the any side force that is applied on the metal tube 4,6 can not damaged core assembly 10.As long as the ring of metal tube 4,6 is removed the bending radius that radius γ is equal to or greater than the permission of core assembly 10, between the optical cable operational period, certainly do not have undue bending and produce, cause damage or destroy the situation of this core assembly 10.
Although above diagram and described all most preferred embodiments of the present invention; should be appreciated that; the present invention is not limited to these concrete structure scopes that this paper discloses; to various changes and variation that the present invention did, the present invention keeps the right that is subjected to patent protection in the scope of being set forth by appending claims of the present invention.
Claims (22)
1, a kind of fiber optic cables of metal tube coating comprise:
-device engagement device is used to connect an optical communication equipment;
-fiber optic cables, it comprises that a metal tube and passes the fibre-optical mandrel of this metal tube;
-hoop (ferrule) is used to support one and is positioned at an end outside one of this metal tube end, this plug, with should hold in the optic fibre patchhole of importing one on this device engagement device this plug;
-spring part is used for impelling this hoop by this hoop of pushing on the direction of this device engagement device;
-pedestal, it has an end that is fixedly connected on this device engagement device, and this pedestal is used to support this hoop, and this hoop can be moved along described direction; And
-light (fibre) cable joint, the one end is fixedly connected on the other end of this pedestal, and its other end is fixedly connected on the metal tube of this optical fiber;
At least one or this light (fibre) cable joint are formed by insulator in this pedestal and this hoop.
2, the fiber optic cables of metal tube coating as claimed in claim 1 is characterized in that, pedestal and hoop are formed an insulator, and light (fibre) cable joint comprises: a metal hold-down nut, and one end screw-threaded engagement is in this pedestal; And, metal light (fibre) cable contact maker, one end screw-threaded engagement is in the other end of this hold-down nut, and its other end is fixedly connected on this metal tube.
3, the fiber optic cables that coat of metal tube as claimed in claim 1 it is characterized in that pedestal and hoop are made up of metal, and light (fibre) cable joint comprise: a hold-down nut that constitutes by a kind of insulator, and one end screw-threaded engagement is in this pedestal; And, light (fibre) cable contact maker that constitutes by a kind of metal, one end screw-threaded engagement is in the other end of this hold-down nut, and its other end is fixedly connected on this metal tube.
4, the fiber optic cables that coat of metal tube as claimed in claim 1 it is characterized in that pedestal and hoop are made of metal, and light (fibre) cable joint comprise: a hold-down nut that constitutes by a kind of metal, and one end screw-threaded engagement is in this pedestal; And, light (fibre) cable contact maker that constitutes by a kind of insulator, one end screw-threaded engagement is in the other end of this hold-down nut, and its other end is fixedly connected on this metal tube.
5, the fiber optic cables of metal tube coating as claimed in claim 1, it is characterized in that, pedestal and hoop are made of metal, and light (fibre) cable joint comprises: light (fibre) cable contact maker that is made of a kind of insulator, one end screw-threaded engagement is in this pedestal, and the other end is fixedly connected on this metal tube.
6, the fiber optic cables of metal tube coating as claimed in claim 1, it is characterized in that, the metal tube of fiber optic cables comprises a spiral winding of being made up of the bonding jumper that is essentially the serpentine xsect (metalstrip), and to provide: one at inner form, the open ring groove inwards of this metal tube; One open ring groove that outside this metal tube, form, outside; And, one annular side portions and of extending towards this tube's axis deviates from the annular side portions that this tube's axis is extended, this spiral winding should be: when considering each one first, 1 second and 1 the 3rd serial connection pipeline section that equals a pitch, this annular side portions that deviates from first pipeline section of this axis extension places in the open inwardly ring groove of this second pipeline section, in the open ring groove of this second pipeline section, place this annular side portions outwardly towards the 3rd pipeline section of this axis extension, so that all pipeline sections in succession intermesh, and form a flexible tubing.
7, a kind of fiber optic cables of metallic cover comprise:
One device engagement device is used to be connected to an optical communication equipment;
One first fiber optic cables, it comprises that a flexible metal hose and passes the fibre-optical mandrel of this metal tube;
One hoop is used to support one and is positioned at one of this flexible metal hose end one end in addition, this plug, imports in an optic fibre patchhole that forms on the device engagement device with this end with this plug;
One spring part is used for impelling this hoop by this hoop of pushing on the direction of this device engagement device;
One pedestal, it has an end that is fixedly connected on this device engagement device, and this pedestal is used to support this hoop to be made it and can move along described direction;
One light (fibre) cable joint, it has an end that is fixedly connected on the other end of this pedestal, and its other end is fixedly connected on the described end of this flexible metal hose of this first optical fiber;
One relaying contact maker, it has one and is fixedly connected on the end of the other end of this flexible metal hose of this first optical fiber, and comprises a center pit, and this plug that passes this metal tube passes this hole; And
One second optical fiber, it comprises a seamless metal pipe, the one end is fixedly connected on the other end of this relaying contact maker; With a fibre-optical mandrel, it is connected in first fibre-optical mandrel and passes through this seamless metal pipe.
8, the fiber optic cables of metal tube coating as claimed in claim 7, it is characterized in that, the flexible metal hose of first fiber optic cables comprises a spiral winding of being made up of the bonding jumper that is essentially the serpentine xsect, and to provide: one at inner form, the open ring groove inwards of this metal tube; One open ring groove that outside this metal tube, form, outside; And, one annular side portions and of extending towards this tube's axis deviates from the annular side portions that this tube's axis is extended, this spiral winding should be: when considering each one first, 1 second and 1 the 3rd serial connection pipeline section that equals a pitch, this annular side portions that deviates from first pipeline section of this axis extension places in the open inwardly ring groove of this second pipeline section, in the open ring groove of this second pipeline section, place this annular side portions outwardly towards the 3rd pipeline section of the axis extension of this pipe, so that all pipeline sections in succession intermesh, and form a flexible tubing.
9, a kind of fiber optic cables of metal tube coating comprise:
One device engagement device is used to be connected to an optical communication equipment;
One fiber optic cables, it comprises that a metal tube and passes the fibre-optical mandrel of this metal tube;
One hoop is used to support one and is positioned at one of this metal tube end one end in addition, this fibre-optical mandrel, imports in an optic fibre patchhole that forms on this device engagement device with this end with this plug;
One spring part is used for this hoop of pushing on the direction of the contact maker that impels this hoop by this equipment;
One pedestal, it has an end that is fixedly connected on this device engagement device, and this pedestal is used to support this hoop, so that it can move along described direction;
One hold-down nut, it has an end that is fixedly connected on the other end of this pedestal, and this hold-down nut comprises a calking (close) cover, and this cover extends along described direction, and optical fiber passes this cover; And
One light (fibre) cable contact maker, the one end is fixedly connected on this hold-down nut, and its other end is fixedly connected on this metal tube of these fiber optic cables.
10, the fiber optic cables that coat of metal tube as claimed in claim 9 is characterized in that, in pedestal and the hoop at least, and hold-down nut or light (fibre) cable contact maker is made of insulator.
11, the fiber optic cables of metal tube coating as claimed in claim 9 is characterized in that, pedestal and hoop are made of insulator, and hold-down nut comprises a threaded portion that is connected with this base thread, and this threaded portion and cover integrally are made of metal.
12, the fiber optic cables that coat of metal tube as claimed in claim 9 is characterized in that, the metal tube of fiber optic cables comprises a spiral winding of being made up of the bonding jumper that is essentially the serpentine xsect, to provide: an open inwards ring groove; One outside open ring groove; And, one annular side portions and of extending towards this tube's axis deviates from the annular side portions that this tube's axis is extended, this spiral winding should be: when considering each one first, 1 second and 1 the 3rd serial connection pipeline section that equals a pitch, this annular side portions that deviates from first pipeline section of this tube's axis places in the open inwardly ring groove of this second pipeline section, in the open ring groove of this second pipeline section, place this annular side portions outwardly towards the 3rd pipeline section of this axis extension, so that all pipeline sections in succession intermesh, and form a flexible tubing.
13, a kind of fiber optic cables of metal tube coating comprise:
One device engagement device is used to be connected to an optical communication equipment;
One fiber optic cables, it comprises that a metal tube and passes the fibre-optical mandrel of this metal tube;
One binds round, and be used to support one and be positioned at one of this metal tube end one end in addition, this fibre-optical mandrel, and should hold in the optic fibre patchhole of importing one on this device engagement device this plug;
One spring part is used for impelling this hoop by this hoop of pushing on the direction of this device engagement device;
One pedestal, it has an end that is fixedly connected on this device engagement device, and this pedestal is used to support this hoop, and it can be moved along described direction;
One hold-down nut, it has an end that is fixedly connected on the other end of this pedestal, and this hold-down nut comprises a calking (close) cover, and this cover extends along described direction, and optical fiber passes this cover, and this cover is fixedly connected on this metal tube of these fiber optic cables.
14, the fiber optic cables of metal tube coating as claimed in claim 13 is characterized in that, pedestal and hoop are made of insulator, and hold-down nut comprises a threaded portion that is connected with this base thread, and this threaded portion and cover integrally are made of metal.
15, the fiber optic cables that coat of metal tube as claimed in claim 13 is characterized in that, described hold-down nut comprises that one is made of an insulator, and is threadedly connected to the threaded portion of pedestal, and a metallic sheath that is fixedly connected on this threaded portion.
16, the fiber optic cables of metal tube coating as claimed in claim 13 is characterized in that the metal tube of fiber optic cables is made of a seamless metal pipe.
17, a kind of fiber optic cables of metal tube coating comprise:
One fiber optic cables, it comprises that a metal tube and passes the fibre-optical mandrel of this metal tube;
One connector seat, it comprises an anterior perforate, a rear portion perforate, an inner space that is communicated with this two perforate, and an inner flange that stretches into this inner space;
One lasso (ferrule), it comprises that one is provided with the external flange that is used for pushing against this inner flange, and the center pit that therefrom passes of the fibre-optical mandrel of these fiber optic cables, this ferrule supports is positioned at an end outside this metal tube, this plug, and along passing a center pit that limits by this inner flange from this rear portion perforate to this direction of this front portion perforate;
One spiral compression spring, it has an end that props up this lasso, and this spring is along from this rear portion perforate this this lasso of direction pushing to this front portion perforate; And
One stop collar, it comprises: one is connected in the front end of the rear end of this connector seat, and this front end props up the other end of this spiral compression spring, a rear end, it has a larger-diameter perforate, and this hole allows these fiber optic cables from wherein passing through; And, a center pit, extend in the hole that this hole forms from this rear end extreme direction forward, and the plug of these fiber optic cables passes this center pit.
18, the fiber optic cables of metal tube coating as claimed in claim 17 is characterized in that, this stop collar comprises an engagement projection and a lock tab, and these projections are outwards outstanding from the external peripheral surface of stop collar at its front end; And the connector seat comprises: an engaging hole that matches with this engagement projection, with a long nick, this long nick extends to this rear portion perforate and holds this lock tab, guiding its along from this rear portion perforate moving on this this direction of front portion perforate, and prevent that this lock tab is around this stop collar axis rotation.
19, the fiber optic cables of metal tube coating as claimed in claim 17, it is characterized in that, stop collar comprise one at its front end from the outwards outstanding engagement projection of its external peripheral surface, and the gathering sill that extends of this direction of extending from this front end face along this center pit; And the connector seat comprises that this engagement projection is matched with wherein engagement breach and and charges into this inner space and be matched with lock tab in the gathering sill, so that its direction of extending along gathering sill is directed to is mobile, and prevents that it from centering on the rotation of stop collar axis.
20, the fiber optic cables that coat of metal tube as claimed in claim 17 is characterized in that, the metal tube of fiber optic cables comprises a spiral winding of being made up of the bonding jumper that is essentially the serpentine xsect, to provide: an open inwards ring groove; One outside open ring groove; And, one annular side portions and of extending towards this tube's axis deviates from the annular side portions that this tube's axis is extended, this spiral winding should be: when considering each one first, 1 second and 1 the 3rd serial connection pipeline section that equals a pitch, this annular side portions that deviates from first pipeline section of this tube's axis places in the open inwardly ring groove of this second pipeline section, in the open ring groove of this second pipeline section, place this annular side portions outwardly towards the 3rd pipeline section of this axis extension, so that all pipeline sections in succession intermesh, and form a flexible tubing.
21, a kind of fiber optic cables of metal tube coating comprise:
One first fiber optic cables, it comprises that a flexible metal hose and passes the fibre-optical mandrel of this metal tube;
One cock seat, it comprises an anterior perforate, a rear portion perforate, an inner space that is communicated with this two perforate, and an inner flange that stretches into this inner space;
One lasso, it comprises that one is provided with the external flange that is used for propping up this inner flange, and the center pit that therefrom passes of the plug of these first fiber optic cables, this ferrule supports is positioned at an end outside the end of this flexible metal hose, this plug, and along passing a center pit that limits by this inner flange from this rear portion perforate to this direction of this front portion perforate;
One spiral compression spring, it has an end that props up this lasso, this compression spring along from this rear portion perforate to this this lasso of direction pushing of this front portion perforate;
One stop collar, it comprises: a front end, it is connected in the rear end of this connector seat, and props up the other end of this spiral compression spring; One rear end, it has a larger-diameter perforate, and these first fiber optic cables can pass through from this hole; And, a center pit, this hole the above hole is extended and is extended to this front end always from this rear end, and the plug of these first fiber optic cables passes this hole;
One relaying contact maker, it has one and is fixedly connected on the end of the other end of this flexible metal hose of this first optical fiber, and comprises a center pit, and this plug that passes this metal tube passes this hole; And
One second fiber optic cables, it comprises: a seamless metal pipe, the one end is fixedly connected on the other end of this relaying contact maker; And a fibre-optical mandrel, it extends and passes this seamless metal pipe from described first fibre-optical mandrel.
22, the fiber optic cables that coat of metal tube as claimed in claim 21 is characterized in that, the flexible metal hose of first fiber optic cables comprises a spiral winding that is made of the bonding jumper that is essentially the serpentine xsect, to provide: an open inwards ring groove; One outside open ring groove; And, one annular side portions and of extending towards this tube's axis deviates from the annular side portions that this tube's axis is extended, this spiral winding should be: when considering each one first, 1 second and 1 the 3rd serial connection pipeline section that equals a pitch, this annular side portions that deviates from first pipeline section of this tube's axis extension places in the open inwardly ring groove of this second pipeline section, in the open ring groove of this second pipeline section, place annular side portions of this 3rd pipeline section that extends towards this axis outwardly, to form an intermeshing chain type flexible tubing of forming by all pipeline sections in succession.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP165526/91 | 1991-07-05 | ||
| JP16552691A JP2839751B2 (en) | 1991-07-05 | 1991-07-05 | Metal tube coated optical fiber equipment connector |
| JP165527/91 | 1991-07-05 | ||
| JP165528/91 | 1991-07-05 | ||
| JP307414/91 | 1991-11-22 | ||
| JP126430/92 | 1992-05-19 | ||
| JP12643092A JP3192476B2 (en) | 1992-05-19 | 1992-05-19 | Optical connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1070740A true CN1070740A (en) | 1993-04-07 |
| CN1028912C CN1028912C (en) | 1995-06-14 |
Family
ID=26462617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105430 Expired - Lifetime CN1028912C (en) | 1991-07-05 | 1992-07-04 | Metal tube clad optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028912C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356341A (en) * | 2009-04-30 | 2012-02-15 | Adamant工业株式会社 | Optical connector plug |
| CN109313045A (en) * | 2016-06-08 | 2019-02-05 | 光纳株式会社 | Cable is used in the pressure of substance, temperature, Strain Distribution measurement |
| CN111045159A (en) * | 2019-12-31 | 2020-04-21 | 深圳市国扬通讯有限公司 | Optical fiber slip ring for optical communication equipment |
-
1992
- 1992-07-04 CN CN 92105430 patent/CN1028912C/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102356341A (en) * | 2009-04-30 | 2012-02-15 | Adamant工业株式会社 | Optical connector plug |
| CN102356341B (en) * | 2009-04-30 | 2014-10-08 | Adamant工业株式会社 | Optical connector plug |
| CN109313045A (en) * | 2016-06-08 | 2019-02-05 | 光纳株式会社 | Cable is used in the pressure of substance, temperature, Strain Distribution measurement |
| CN109313045B (en) * | 2016-06-08 | 2020-11-13 | 光纳株式会社 | Cable for measuring pressure, temperature and strain distribution of substance |
| CN111045159A (en) * | 2019-12-31 | 2020-04-21 | 深圳市国扬通讯有限公司 | Optical fiber slip ring for optical communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1028912C (en) | 1995-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120704 Granted publication date: 19950614 |