CN203350487U - Single-core fiber mechanical joint terminal - Google Patents
Single-core fiber mechanical joint terminal Download PDFInfo
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- CN203350487U CN203350487U CN 201320384436 CN201320384436U CN203350487U CN 203350487 U CN203350487 U CN 203350487U CN 201320384436 CN201320384436 CN 201320384436 CN 201320384436 U CN201320384436 U CN 201320384436U CN 203350487 U CN203350487 U CN 203350487U
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Abstract
The utility model discloses a single-core fiber mechanical joint terminal. According to the single-core fiber mechanical joint terminal, a V-shaped groove core is a strip-like structure and is internally provided with a butt joint groove along a length direction, a fiber threading fixing hole of a head end of the V-shaped groove core penetrates through the first fiber threading guide column, an insertion core fixing hole of a tail end of the V-shaped groove core penetrates through the second fiber threading guide column, a V-shaped groove sheet is carved with a V-shaped fiber butt joint channel, the V-shaped groove sheet is inserted into the butt joint groove of the V-shaped groove core, a guide cylinder is inserted into the first fiber threading guide column and the second fiber threading guide column, the guide cylinder is internally provided with a guide segment, a circular corner and a horn port sequentially which are communicated, the guide cylinder is externally provided with a circular guide corner and an outer side face, a lower leather wire cold junction casing sleeve is sleeved outside the V-shaped groove core, the lower leather wire cold junction casing sleeve has a part, the part is used for fixing an in-built assembly, two ends of the part are used for fixing optical cables, an upper leather wire cold junction casing sleeve is sleeved on the lower leather wire cold junction casing sleeve and is buckled through button positions, the lower leather wire cold junction casing sleeve is provided with float teeth and outer threads, the float teeth and the outer threads are in combination with a screwing face and inner threads on a locking back casing to fix the optical cables.
Description
Technical field
The utility model relates to fiber optic communication field, in particular to a kind of single-core fiber mechanical type connector.
Background technology
Along with the arrival of full light business Operation era, the FTTH(Fiber To The Home of high standard, Fiber to the home) the access powerful measure that is considered to fight for high-end customer.FTTH networking construction center of gravity is turned to indoor by open air, the impact of environmental baseline brings a series of difficult problems to network arrangement.Therefore, internal home network layout and link Efficient Development, operation and maintenance become the focus of attention of FTTH networking, and the field assembling type joints of optical fibre will play a significant role therein.And the quality of the joints of optical fibre and long-term reliability will directly have influence on ODN(Optical Distribution Node, Optical Distribution Node) performance of circuit and permanent stable.The high performance joints of optical fibre, all need manufacturer to there is very strong research and development and technology ability, need a large amount of experiments for years to be verified that the height that technical threshold is suitable also needs strict production run to control to reach the steady quality of product simultaneously simultaneously.Review domesticly, this is known as in 2 years, and the manufacturer that the joints of optical fibre are provided is general like rain rear spring bamboo, and dragons and fishes jumbled together here, and most not corresponding research and development and productive capacity, be only to raid market by low price.And indivedual operators are in the selective light fiber connector, do not have a set of effective method of testing and check out the product that really can meet its dress dimension needs, what directly bring up is exactly the low-quality assembling product forms at a low price " soybean residue " one by one Fiber to the home engineering, brings huge loss to telecom operators and End-Customer.Also with the release FTTH of telecom operators, with the original intention of the expense of saving later maintenance, run in the opposite direction.Comprise at present domesticly abroad, quick coupler manufacturer is more, has also formed characteristics separately on its structure and material.Below to dissect as follows to current quick coupler relative merits on the market:
The V groove is actually the core component of quick coupler, so the choice relation of its material is to the quality of whole quick coupler.For now, commercial with regard to two kinds on market, a kind of is metal V groove, and another kind is plastics V groove.Fiber alignment passage above the V groove adopts high-precision equipment once to cut and form, and the product of moulding both can guarantee never modification, can guarantee again high dimensional accuracy and splendid surfaceness.And metal V groove and plastics V groove can produce in the production run in early stage that burr, surfaceness are bad, out-of-flatness and dimensional accuracy are difficult to the problems such as control; Later stage, in client As time goes on the plastics of pressurized or metal V groove produced micro-deformation and warpage cannot be avoided.No matter be the variation of some trace of producing in bad or later stage of making in early stage, to high-accuracy fiber alignment, be all fatal, and these defects that plastics V groove and metal V groove can't be avoided exactly.
If the fibre core dislocation occurs, when the dislocation of two docking optical fiber reaches 1um apart from d, insertion loss can increase the 0.2dB left and right; And corresponding insertion loss can increase the 0.8dB left and right when dislocation reaches 2um apart from d.Here have several numerical value to require emphasis: the first, the external diameter of general optical fiber is 125um, and logical light action is really played in the inside, is 9um.The second, people's hairline is generally the 80um left and right, and 1um is equivalent to 1/80 of hairline.That is to say that an extremely small dislocation and distortion meeting form very large variation to insertion return loss.
If fibre core occurs, tilt, in the time of two 1 ° of angles of inclination of docking optical fiber, Insertion Loss can increase the 0.35dB left and right, and Insertion Loss can increase the 1.34dB left and right in the time of 2 ° of angles, angle of inclination.
But the shortcoming of prior art is:
One, optical fiber is fixing:
Sheet metal is aimed in fixed mechanism, and the coefficient of thermal expansion and contraction of sheet metal and plastics is different, can make the increasing of fibre junction point distance, the performance that continues variation with temperature and changing; Moreover burr and metalwork distortion all can appear in any metalwork in the middle of Sheet Metal Forming Technology, burr can hurt the surface of optical fiber, and the metalwork distortion more can make the interface of two optical fiber produce dislocation, moreover non-ferrous metal is long-term and air contacting surface chemical reaction can occur and erode metallic surfaces, this all can directly have influence on the connecting quality of optical fiber.
And the involutory optical-fibre channel of another unit of plastic is normally closed often, at first need to back down briquetting when optical fiber penetrates, but the surface flatness of working of plastics is low, back down the surface of the central easy damaged V-type groove of process, produce the plastics chip and pollute splicing point, the logical light of impact, cause the decline of connecting quality.And the middle fluent meterial that is improved translucidus of involutory plastics, its spinoff is that two surfaces are pulled together, the power of backing down when optical fiber penetrates increases greatly, even causes the disconnected fine phenomenon in the process of penetrating.Moreover any working of plastics inevasible problem that drawdown deformation, warpage all can occur in the middle of injection molding process, badly influence the flatness of fiber alignment passage, make the interface of two optical fiber produce dislocation, thereby have influence on the quality of final fibre junction.Moreover plastics V groove is because the hardness of itself is inadequate, through after repeatedly repeating to open, surface can form irregular depression.Cause thus the signal stabilization that the decentraction phenomenon of the reduction of optical fiber clamping power and docking optical fiber is badly influenced to optical fiber.And part producer product can not repeat to open to the fixed mechanism of optical fiber, namely can not reuse.
Two, crust is fixing:
The little tooth of plastics in the pawl structure of plastics fixed block, owing to floating, and covered wire cable size on the market has very large difference to cause holding force to have size, easily be split up the plastic latch locking structure when covered wire cable size is large, in the time of little, covered wire cable easily gets loose; And the contraction of another cone pawl need to screw tapered sleeve, the central optical cable crust of the process that screws easily gets loose, thereby causes splicing point to separate, and affects success ratio.The product lid of part producer is disposable after building at present, can not open and reuse again, has directly increased a line workmen difficulty of construction.
And the V groove passage that at present product on the market docks with it a kind of be metal, another is plastics.With which kind of V groove with optical fiber, match and all have the inconsistent problem of coefficient of thermal expansion and contraction.Easily be subject to temperature variation, material aging and affect the quality continued.
The utility model content
The utility model provides a kind of single-core fiber mechanical type connector, in order to realize optical fiber fixed mechanism and optical cable fixed mechanism repeat to open, can reduce a line workmen construction requirement, and can reuse.
For achieving the above object, the utility model provides a kind of single-core fiber mechanical type connector, it comprises for the built-in assembly of fixed fiber with for the fixing external assembly of optical cable, described built-in assembly comprises that first wears fine guidepost, second and wear fine guidepost, guide cylinder, V groove fuse, V-type slotted vane, described external assembly comprises rubber-insulated wire cold joint upper casing, rubber-insulated wire cold joint lower casing and locking back cover, wherein:
Described V groove fuse is bar shaped, is provided with along its length docking groove in it, and the fine fixed orifice of wearing of described V groove fuse head end penetrates and fixes described first and wears fine guidepost, and the lock pin fixed orifice of described V groove fuse tail end penetrates and fixes described second and wears fine guidepost; Described V-type slotted vane is the quartz glass material, is carved with V-shaped fiber alignment passage on it, and described V-type slotted vane inserts the docking groove of described V groove fuse;
Described guide cylinder is inserted in described first and wears fine guidepost and described second and wear fine guidepost inside, and described guide cylinder inside is provided with guide section, fillet, the hydraucone be interconnected successively, and described guide cylinder outside is provided with guiding fillet and lateral surface;
Described rubber-insulated wire cold joint lower shell is located at outside described V groove fuse, and described rubber-insulated wire cold joint lower casing has the fixedly position of optical cable of fixing described built-in assembly and two ends; Described rubber-insulated wire cold joint upper shell is located on described rubber-insulated wire cold joint lower casing, and fastens by button bit;
Above the rubber-insulated wire cold joint lower casing of described external assembly, be provided with float tooth and external thread respectively with the locking back cover on the face that screws and the fixing optical cable of screw-internal thread fit, be suitable for the realization when fixing optical cable of described single-core fiber mechanical type connector and repeat unlatching and repeat to continue.
Optionally, described built-in assembly also comprises the first latch and the second latch, describedly wear fine fixed orifice one side and be provided with first hole, described the first latch penetrates described first hole, described the first latch matches with the described first groove of wearing fine guidepost one side, wears fine guidepost by described first and is fixed on described V groove fuse; Described lock pin fixed orifice one side is provided with second hole, and described the second latch penetrates described second hole, and described the second latch matches with the described second groove of wearing fine guidepost one side, wears fine guidepost by described second and is fixed on described V groove fuse.
Optionally, be provided with along its length a cantilever-shaped unsteady muscle stretched out in the docking groove of described V groove fuse, described unsteady muscle is divided into described docking groove to wear fine space and extruding space; Be parallel to the described unsteady muscle direction that overhangs and offer the locking slot communicated with described extruding space on a side of described V groove fuse, on described V groove fuse another side, be provided with a button bit muscle, a described side and described another side are adjacent;
Described V-type slotted vane is plugged in the fine space of wearing of described docking groove, and the opening of described fiber alignment passage is towards described unsteady muscle, and under normal conditions and leave gap between the surface of described unsteady muscle so that the penetrating of optical fiber;
Described built-in assembly also comprises gland, described gland comprises acupressure probe and the block muscle and the guiding rib that vertically extend and be parallel to each other from described acupressure probe, offer a line short slot on described guiding rib, described short slot engages with the button bit muscle on described V groove fuse, secures the above gland and makes it not produce movement; In the locking slot of the block muscle of described gland from described V groove fuse, insert in described extruding space, the thickness of the end of described block muscle is greater than the thickness in described extruding space, the described unsteady muscle of end extruding of described block muscle after described gland engaging, make the aperture position skew of the past described fiber alignment passage in surface of described unsteady muscle compress docking optical fiber.
Optionally, a side of described rubber-insulated wire cold joint lower casing and described rubber-insulated wire cold joint upper casing is respectively equipped with the breach of dodging that the block muscle of allowing described gland passes, and the described breach of dodging is corresponding with the position of the locking slot of described V groove fuse.
Optionally, the two ends inner channel of described rubber-insulated wire cold joint lower casing is provided with unsteady tooth, the upper and lower rubber-insulated wire block face that respectively has an optical cable that prevents from penetrating to run out of of described unsteady tooth; The inside of described rubber-insulated wire cold joint lower casing is provided with the locating slot of fixing described inner assembly, and described rubber-insulated wire cold joint lower casing two ends also are provided with external thread;
Described locking back cover in a tubular form, internal thread is opened and be provided with to the one end, the other end is provided with wears fine mouthful, described locking back cover is provided with internal thread and locking face, the external thread of the internal thread of described locking back cover and described rubber-insulated wire cold joint lower casing is threaded connection, the locking face of described locking back cover bears against the unsteady tooth of described rubber-insulated wire cold joint lower casing, makes the inboard interlock of unsteady teeth directional of described rubber-insulated wire cold joint lower casing and clamps optical cable.
Optionally, described rubber-insulated wire cold joint lower casing two ends also are provided with the optical cable confined planes;
Described external assembly also comprises the guiding flexible pipe, and described guiding flexible pipe, for fixed fiber, is sheathed on the unsteady tooth the inside at described rubber-insulated wire cold joint lower casing two ends and is resisted against described optical cable confined planes; Described guiding flexible pipe inside is provided with guide section, fillet, the hydraucone be interconnected successively, and described guiding flexible pipe outside has guiding fillet and lateral surface;
Described locking back cover in a tubular form, internal thread is opened and be provided with to the one end, the other end is provided with wears fine mouthful, described locking back cover is provided with internal thread and locking face, the external thread of the internal thread of described locking back cover and described rubber-insulated wire cold joint lower casing is threaded connection, the locking face of described locking back cover bears against the unsteady tooth of described rubber-insulated wire cold joint lower casing, makes the inboard interlock of unsteady teeth directional of described rubber-insulated wire cold joint lower casing and clamps optical cable.
Optionally, described first wears fine guidepost and described second wears fine guidepost inside and is provided with successively respectively hydraucone and the guide cylinder section be interconnected, described first wears fine guidepost and described second wears fine guidepost outside and is provided with successively respectively cylindrical section, step and inserting section, described the first inserting section of wearing fine guidepost penetrates wearing in fine fixed orifice of described V groove fuse, and described the second inserting section of wearing fine guidepost penetrates in the lock pin fixed orifice of described V groove fuse.
Optionally, described external assembly also comprises opening board, described opening board cross section is concave character type, described opening board inside is provided with the unlatching muscle, be respectively equipped with and be suitable for the breach that described unlatching muscle passes on described rubber-insulated wire cold joint lower casing, a described rubber-insulated wire cold joint upper casing side relative with dodging breach, described unlatching muscle from this breach, penetrate described rubber-insulated wire cold joint lower casing inside and with the guiding rib end butt of described gland.
Optionally, the outside of described rubber-insulated wire cold joint upper casing middle-end is provided with four button bit holes, and the outside of middle-end is provided with four button bits, and described four button bit holes and described four button bits are interlocked and fix described rubber-insulated wire cold joint upper casing and described rubber-insulated wire cold joint lower casing.
The utility model has been realized following beneficial effect: two fiber alignments are to realize pinpoint by the V-type slotted vane, because the cross section of V-type slotted vane is triangle, in the middle of process, the precision of fiber alignment passage is accurately controlled, realize high precision, the fiber alignment passage of high smooth degree, added the lateral surface compressing mechanism of fine setting effect, just can realize the accurate docking of optical fiber according to the principle of 3 definite circles, have simple in structure, cost of manufacture is low, the advantages such as the execute-in-place time is short, but the difficulty of decrease fibre junction Cheng Duan, increase substantially the accuracy and reliability of fiber alignment, and insertion loss can be less than 0.1dB.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Figure 1A 1, Figure 1A 2 wear fine guidepost schematic diagram for the utility model single-core fiber mechanical type connector first;
Figure 1B 1, Figure 1B 2 wear fine guidepost schematic diagram for the utility model single-core fiber mechanical type connector second;
Fig. 1 C is the utility model single-core fiber mechanical type connector guide cylinder schematic diagram;
Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 D, Fig. 2 E are this practical single-core fiber mechanical type connector V groove fuse schematic diagram;
Fig. 3 A, Fig. 3 B are the utility model single-core fiber mechanical type connector guiding flexible pipe schematic diagram;
Fig. 4 A, Fig. 4 B are the utility model single-core fiber mechanical type connector rubber-insulated wire cold joint upper casing schematic diagram;
Fig. 5 A, Fig. 5 B are the utility model single-core fiber mechanical type connector rubber-insulated wire cold joint lower casing schematic diagram;
Fig. 6 A, Fig. 6 B are the utility model single-core fiber mechanical type connector locking back cover schematic diagram;
Fig. 7 is the utility model single-core fiber mechanical type connector latch schematic diagram;
Fig. 8 is the utility model single-core fiber mechanical type connector V-type slotted vane schematic diagram;
Fig. 9 A, Fig. 9 B, Fig. 9 C are this practical single-core fiber mechanical type connector gland schematic diagram;
Figure 10 is the utility model single-core fiber mechanical type connector opening board schematic diagram;
The explosive view that Figure 11 is the utility model single-core fiber mechanical type connector;
The cut-open view that Figure 12 A, Figure 12 B are the utility model single-core fiber mechanical type connector;
The side pressure action cut-open view that Figure 13 is the utility model single-core fiber mechanical type connector;
The docking groove cut-open view that Figure 14 is the utility model single-core fiber mechanical type connector.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not paying under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Be preferred embodiment of the utility model as shown in Figure 13, Figure 14, a kind of single-core fiber mechanical type connector that adopts the V-type slotted vane is provided.Comprise for the built-in assembly of fixed fiber with for the fixing external assembly of optical cable.Built-in assembly comprises that first wears fine guidepost 1A, second and wear fine guidepost 1B, guide cylinder 1C, latch 7, gland 9, V groove fuse 2, V-type slotted vane 8, external assembly has rubber-insulated wire cold joint upper casing 4, rubber-insulated wire cold joint lower casing 5, guiding flexible pipe 3 and locking back cover 6, opening board 10, wherein V-type slotted vane 8 is positions of fiber alignment, is the core of whole product.
The locating slot that the V groove fuse 2 of built-in assembly snaps in rubber-insulated wire cold joint lower casing 5 the insides of external assembly links together built-in assembly and external assembly, just forms one and can make two optical fiber docking accurate location and a reliable fixing passage smoothly.
Concrete, as shown in Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 D, Fig. 2 E, V groove fuse (2) is rectangle, its head end is provided with one and wears fine fixed orifice 2-12, be used for penetrating first and wear fine guidepost 1A, wear fine fixed orifice 2-12 mono-side and be provided with square hole 2-3, be used for penetrating a latch 7, the groove 1A-51 that this latch 7 and first is worn above fine guidepost 1A matches, and wears fine guidepost 1A to first and is fixed on above V groove fuse 2; The tail end of V groove fuse 2 is provided with a lock pin fixed orifice 2-5, be used for penetrating second and wear fine guidepost 1B, be provided with another square hole 2-1 in lock pin fixed orifice 2-5 mono-side, be used for penetrating another latch 7, the groove 1B-51 that this another latch 7 and second is worn fine guidepost 1B mono-side matches, and wears fine guidepost 1B to second and is fixed on above V groove fuse 2.
For another example shown in Fig. 2 A, Fig. 2 B, Fig. 2 C, Fig. 2 D, Fig. 2 E, lock pin fixed orifice 2-5 with wear fine fixed orifice 2-12 and be connected by docking groove 2-8, docking groove 2-8 can pass for optical fiber, and docking groove 2-8 mono-end is provided with guide angle 2-9, is convenient to V-type slotted vane 8 and inserts in docking groove 2-8.Be provided with along its length a cantilever-shaped unsteady muscle 2-6 who stretches out in docking groove 2-8, float, above muscle 2-6, a slope 2-10 with guide effect is arranged.The muscle 2-6 that floats is divided into docking groove 2-8 to wear fine space 2-81 and extruding space 2-82.Being parallel to the muscle 2-6 that the floats direction that overhangs on a side of V groove fuse 2 offers and the locking slot 2-2 that pushes space 2-83 and communicate.Be provided with a button bit muscle 2-7 on V groove fuse 2 another sides.Wherein, a side and the another side of said V groove fuse 2 are adjacent here.
As shown in Figure 11, Figure 12 A, Figure 12 B, Figure 13, Figure 14, the docking groove 2-8 of V groove fuse 2 wear fine space 2-81 in insert and be fixed with V-type slotted vane 8.Be carved with V-shaped fiber alignment passage 8-1 on V-type slotted vane 8, fiber alignment passage 8-1 is carved with both sides the optical fiber guide channel 8-2 be connected mutually with fiber alignment passage 8-1, and optical fiber guide channel 8-2 is the hydraucone amplified gradually outward, to facilitate penetrating of optical fiber.The preferred quartz glass material of V-type slotted vane 8, and form by precision cutting, can reach splendid surfaceness and linearity requirement, while making it wear fibre, import smooth and easy, optical fiber slides at smooth glass surface, optical fiber is difficult for injured, can not produce broken end, pollute matching fluid, repeatedly repeats the stable performance that continues.The utility model V-type slotted vane technology is to adopt in type section bar to form with high-precision equipment cutting, and the product of moulding can guarantee never to be out of shape.V-type slotted vane 8 be fixed on V groove fuse 2 docking groove 2-8 wear fine space 2-81 in after, the opening of fiber alignment passage 8-1 is towards unsteady muscle 2-6, and and the surface of unsteady muscle 2-6 between leave gap under normality, can guarantee that when there is no side pressure optical fiber penetrates the process of fiber alignment passage 8-1 smooth and easy.
As shown in Figure 1A 1, Figure 1A 2, first wears fine guidepost 1A inside is provided with hydraucone 1A-1 successively, hydraucone 1A-1 plays a guide effect in the middle of wearing fine process, first wears fine guidepost 1A outside is provided with cylindrical section 1A-3, step 1A-4 and inserting section 1A-5 successively, is provided with groove 1A-51 on inserting section 1A-5.Also have guide cylinder section 1A-2, be used for importing and positioning and guiding cylinder 1C.As above, the first inserting section 1A-5 that wears fine guidepost 1A penetrates set the wearing in fine fixed orifice 2-12 of head end of V groove fuse 2, another latch 8 penetrates from the square hole 2-3 of V groove fuse 2, then match with the first groove 1A-51 worn above fine guidepost 1A, be fixed on V groove fuse 2 thereby wear fine guidepost 1A to first.
As shown in Figure 1B 1, Figure 1B 2, second wears fine guidepost 1B inside has been provided with hydraucone 1B-1 successively, hydraucone 1B-1 plays a guide effect in the middle of wearing fine process, second wears fine guidepost 1B outside is provided with cylindrical section 1B-3, step 1B-4 and inserting section 1B-5 successively, is provided with groove 1B-51 on inserting section 1B-5.Also have guide cylinder section 1B-2, be used for importing and positioning and guiding cylinder 1C.As above, the second inserting section 1B-5 that wears fine guidepost 1B penetrates set the wearing in fine fixed orifice 2-12 of head end of V groove fuse 2, another latch 8 penetrates from the square hole 2-3 of V groove fuse 2, then match with the second groove 1A-51 worn above fine guidepost 1B, be fixed on V groove fuse 2 thereby wear fine guidepost 1B to second.
As shown in Figure 1 C, guide cylinder inside is provided with guide section 1C-1, fillet 1C-2 and the hydraucone 1C-3 be interconnected successively, guide section 1C-1 plays the effect of a protection after optical fiber penetrates, prevent that optical fiber from fractureing, fillet 1C-2 and hydraucone 1C-3 play a guide effect in the middle of wearing fine process; There are guiding fillet 1C-4 and lateral surface 1C-5 in outside;
As shown in Fig. 3 A, 3B; guiding flexible pipe post inside is provided with guide section 3-1, fillet 3-2 and the hydraucone 3-3 be interconnected successively; guide section 3-1 plays the effect of a protection after optical cable penetrates, and fillet 3-2 and hydraucone 3-3 play a guide effect in the middle of wearing fine process.; There are guiding fillet 3-4 and lateral surface 3-5 in outside;
As shown in Fig. 4 A, 4B, rubber-insulated wire cold joint upper casing 4 one sides are provided with dodges breach 4-1, dodges with this side that breach 4-1 is relative and is provided with small gap 4-4, and the outside of middle-end has 4-2， both sides, four button bit holes that uvula 4-3 is arranged.
As shown in Fig. 5 A, Fig. 5 B, rubber-insulated wire cold joint lower casing 5 one sides are provided with dodges breach 5-1, dodges with this side that breach 5-1 is relative and is provided with small gap 5-4, and there are four button bit 5-2 in the outside of middle-end; There is locating slot 5-3 inboard; Each is provided with the unsteady tooth 5-9 that a pair is opened rubber-insulated wire cold joint lower casing 5 two ends, the relative face of tooth 5-9 that floats is provided with a pair of upper retaining surface 5-5 and a pair of lower retaining surface 5-6, the tooth 5-9 root position that floats is provided with and stops breach 5-7, stops that the breach 5-7 front end outside is provided with external thread 5-8.
As shown in Fig. 9 A, Fig. 9 B, Fig. 9 C, Figure 11, Figure 12 A, Figure 12 B, Figure 13, Figure 14, gland 9 comprises acupressure probe 9-4 and the block muscle 9-1 and the guiding rib 9-2 that vertically extend and be parallel to each other from acupressure probe 9-4, offers the short slot 9-3 corresponding with button bit muscle 2-7 on guiding rib 9-2.After optical fiber interts and to put in place, gland 9 is pressed down, make the short slot 9-3 of guiding rib 9-2 engage respectively with the button bit muscle 2-7 on V groove fuse 2, building the end of muscle 9-1 inserts in extruding space 2-82, because the thickness of the end of building muscle 9-1 is greater than the thickness of extruding space 2-82, make the end of building muscle 9-1 can push the muscle 2-6 that floats, force the surface of the muscle 2-6 that floats toward the skew of fiber alignment access portal position, according to the principle of a circle of three-point fix, make optical fiber form accurate docking.
The above-mentioned optical fiber alignment structure be comprised of V groove fuse 2, V-type slotted vane 8, optical fiber and gland 9, have docking accurately, uses for a long time on-deformable advantage.
Locking back cover 6, as shown in Fig. 6 A, Fig. 6 B, its in a tubular form, internal thread 6-3 open and is provided with to the one end, the other end is provided with wears fine mouthful of 6-2, locking back cover 6 outside surfaces are provided with the position of bone 6-1 that rubs, and are provided with interior compressive plane 6-4 on inside surface.
When using, covered wire cable penetrates from the fine mouthful 6-8 of wearing of locking back cover 6, and the unsteady tooth 5-4 of process rubber-insulated wire cold joint lower casing 5, optical fiber continuation is wherein passed from stopping breach 5-7 inside, by wearing fine guidepost 1A, introduce in V-type slotted vane 8, the optical cable crust peeled is limited in floating in tooth 5-4 and contact and stopping above breach 5-7 again.Specifically, the internal thread 6-3 of locking back cover 6 and the external thread 5-8 of sheath body 5 are threaded connection, and the interior compressive plane 6-4 of locking back cover 6 starts to bear against the unsteady tooth 5-4 of sheath body 5, make the unsteady tooth 5-4 of sheath body 5 gradually to internal gearing, stop that breach 5-7 restriction optical cable crust is toward more depths motion, a pair of upper retaining surface 5-5 and a pair of lower retaining surface 5-6 limit the optical cable crust, and assurance optical cable crust is not run out of the tooth 5-4 that floats.
The opening board cross section is concave character type, and inside is provided with the unlatching muscle, and the side that rubber-insulated wire cold joint lower casing 5 is relative with dodging breach is provided with small gap, open muscle from small gap, penetrate rubber-insulated wire cold joint lower casing 4 inside and with the guiding rib end butt of gland.
Optical fiber for the ease of dismounting to connecting, as shown in figure 10, also be provided with opening board 10, opening board 10 cross sections are concave character type, inside is provided with opens muscle 10-1, open muscle 10-1 can from the small gap 5-4 of rubber-insulated wire cold joint lower casing 5, penetrate rubber-insulated wire cold joint lower casing 5 inside and can with the end butt of the guiding rib 9-2 of gland 9, rely on and open muscle 10-1 and the guiding rib 9-2 incompatible unlatching docking point that matches, the body section both sides of opening board 10 also are provided with the location locating notch 10-2 used when opening.During unlatching, locating notch 10-2 is stuck in the outside of external assembly, opens muscle 10-1 and withstands on above guiding rib 9-2, slightly firmly by the opening board bottom, just can eject tightening cover.After ejecting, need to regain this opening board 10.
In sum, the beneficial effects of the utility model embody in the following areas:
Have the fiber alignment passage in the middle of the V-type slotted vane, the optical fiber guide channel be connected mutually with the fiber alignment passage is carved with in fiber alignment passage both sides, the optical fiber guide channel is the bell mouth shape amplified gradually outward, wearing so fine difficulty reduces greatly, and the above is provided with pressing groove, by the two the cooperation of gland, V groove fuse, form the action of a side pressure, realize the accurate docking of two optical fiber according to 3 principles of determining circles;
V-type slotted vane of the present utility model is made by special process by the exceptional hardness inorganic material, can reach splendid surfaceness and linearity requirement, machining precision can reach the 1um left and right, while wearing fibre, import smooth and easy, optical fiber slides at smooth pottery or inorganic material surface, optical fiber is difficult for injured, can not produce broken end, pollute matching fluid, repeatedly repeats the stable performance that continues; V-type slotted vane technology is to adopt once to cut and form with high-precision equipment in type exceptional hardness inorganic material, and the product of moulding can guarantee never to be out of shape;
Gland of the present utility model is provided with guiding rib and builds muscle, and by coordinating of the unsteady muscle with above V groove fuse and locking slot, a side pressure action of formation can be used for compressing the fiber alignment point in described V-type slotted vane.The above also is provided with the rubbing surface that increases friction force, increases the convenience of construction one line operation;
Opening board of the present utility model is provided with the unlatching muscle, and this unlatching muscle acts on the guiding rib of gland just can open described gland;
V-type slotted vane of the present utility model adopts and silica glass material or the similar inorganic material of optical fiber similar properties, and when expanding with heat and contract with cold, both coefficients are the same, so structure is not subject to temperature variation, material aging and affects the quality continued.
The scene of the utility model single-core fiber mechanical type connector is used and is comprised the following steps:
1, the covered wire cable that stripping is not good is passed to locking back cover 6.
2, the optical fiber prepared is penetrated to single-core fiber mechanical type connector, the covered wire cable otch is adjacent to and stops breach 5-7 above rubber-insulated wire cold joint lower casing 5.
3, tighten locking back cover 6, covered wire cable is fixed; The step that repeats 1-3 has also continued the optical cable of an other end;
4, press lower cover 9, complete connection.
The scene of the utility model single-core fiber mechanical type connector is opened and is comprised the following steps:
1, open gland 9 with opening board 10.
2, locking back cover 6 is unscrewed and taken off above rubber-insulated wire cold joint lower casing 5.
3, take out optical cable, complete unlatching.
The utlity model has simple in structurely, the advantage such as cost of manufacture is low, and the execute-in-place time is short, but the difficulty of decrease fibre junction Cheng Duan, increase substantially the accuracy and reliability of fiber alignment, and insertion loss can be less than 0.1dB.
One of ordinary skill in the art will appreciate that: accompanying drawing is the schematic diagram of an embodiment, and the module in accompanying drawing or flow process might not be that enforcement the utility model is necessary.
One of ordinary skill in the art will appreciate that: the module in the device in embodiment can be described and be distributed in the device of embodiment according to embodiment, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing previous embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of the utility model embodiment technical scheme.
Claims (9)
1. a single-core fiber mechanical type connector, it is characterized in that, comprise for the built-in assembly of fixed fiber with for the fixing external assembly of optical cable, described built-in assembly comprises that first wears fine guidepost, second and wear fine guidepost, guide cylinder, V groove fuse, V-type slotted vane, described external assembly comprises rubber-insulated wire cold joint upper casing, rubber-insulated wire cold joint lower casing and locking back cover, wherein:
Described V groove fuse is bar shaped, is provided with along its length docking groove in it, and the fine fixed orifice of wearing of described V groove fuse head end penetrates and fixes described first and wears fine guidepost, and the lock pin fixed orifice of described V groove fuse tail end penetrates and fixes described second and wears fine guidepost; Described V-type slotted vane is the quartz glass material, is carved with V-shaped fiber alignment passage on it, and described V-type slotted vane inserts the docking groove of described V groove fuse;
Described guide cylinder is inserted in described first and wears fine guidepost and described second and wear fine guidepost inside, and described guide cylinder inside is provided with guide section, fillet, the hydraucone be interconnected successively, and described guide cylinder outside is provided with guiding fillet and lateral surface;
Described rubber-insulated wire cold joint lower shell is located at outside described V groove fuse, and described rubber-insulated wire cold joint lower casing has the fixedly position of optical cable of fixing described built-in assembly and two ends; Described rubber-insulated wire cold joint upper shell is located on described rubber-insulated wire cold joint lower casing, and fastens by button bit;
Above the rubber-insulated wire cold joint lower casing of described external assembly, be provided with float tooth and external thread respectively with the locking back cover on the face that screws and the fixing optical cable of screw-internal thread fit, be suitable for the realization when fixing optical cable of described single-core fiber mechanical type connector and repeat unlatching and repeat to continue.
2. single-core fiber mechanical type connector according to claim 1, it is characterized in that, described built-in assembly also comprises the first latch and the second latch, describedly wear fine fixed orifice one side and be provided with first hole, described the first latch penetrates described first hole, described the first latch matches with the described first groove of wearing fine guidepost one side, wears fine guidepost by described first and is fixed on described V groove fuse; Described lock pin fixed orifice one side is provided with second hole, and described the second latch penetrates described second hole, and described the second latch matches with the described second groove of wearing fine guidepost one side, wears fine guidepost by described second and is fixed on described V groove fuse.
3. single-core fiber mechanical type connector according to claim 1, is characterized in that, is provided with along its length a cantilever-shaped unsteady muscle stretched out in the docking groove of described V groove fuse, and described unsteady muscle is divided into described docking groove to wear fine space and extruding space; Be parallel to the described unsteady muscle direction that overhangs and offer the locking slot communicated with described extruding space on a side of described V groove fuse, on described V groove fuse another side, be provided with a button bit muscle, a described side and described another side are adjacent;
Described V-type slotted vane is plugged in the fine space of wearing of described docking groove, and the opening of described fiber alignment passage is towards described unsteady muscle, and under normal conditions and leave gap between the surface of described unsteady muscle so that the penetrating of optical fiber;
Described built-in assembly also comprises gland, described gland comprises acupressure probe and the block muscle and the guiding rib that vertically extend and be parallel to each other from described acupressure probe, offer a line short slot on described guiding rib, described short slot engages with the button bit muscle on described V groove fuse, secures the above gland and makes it not produce movement; In the locking slot of the block muscle of described gland from described V groove fuse, insert in described extruding space, the thickness of the end of described block muscle is greater than the thickness in described extruding space, the described unsteady muscle of end extruding of described block muscle after described gland engaging, make the aperture position skew of the past described fiber alignment passage in surface of described unsteady muscle compress docking optical fiber.
4. single-core fiber mechanical type connector according to claim 3, it is characterized in that, one side of described rubber-insulated wire cold joint lower casing and described rubber-insulated wire cold joint upper casing is respectively equipped with the breach of dodging that the block muscle of allowing described gland passes, and the described breach of dodging is corresponding with the position of the locking slot of described V groove fuse.
5. single-core fiber mechanical type connector according to claim 1, is characterized in that, the two ends inner channel of described rubber-insulated wire cold joint lower casing is provided with unsteady tooth, the upper and lower rubber-insulated wire block face that respectively has an optical cable that prevents from penetrating to run out of of described unsteady tooth; The inside of described rubber-insulated wire cold joint lower casing is provided with the locating slot of fixing described inner assembly, and described rubber-insulated wire cold joint lower casing two ends also are provided with external thread;
Described locking back cover in a tubular form, internal thread is opened and be provided with to the one end, the other end is provided with wears fine mouthful, described locking back cover is provided with internal thread and locking face, the external thread of the internal thread of described locking back cover and described rubber-insulated wire cold joint lower casing is threaded connection, the locking face of described locking back cover bears against the unsteady tooth of described rubber-insulated wire cold joint lower casing, makes the inboard interlock of unsteady teeth directional of described rubber-insulated wire cold joint lower casing and clamps optical cable.
6. single-core fiber mechanical type connector according to claim 1, is characterized in that, described rubber-insulated wire cold joint lower casing two ends also are provided with the optical cable confined planes;
Described external assembly also comprises the guiding flexible pipe, and described guiding flexible pipe, for fixed fiber, is sheathed on the unsteady tooth the inside at described rubber-insulated wire cold joint lower casing two ends and is resisted against described optical cable confined planes; Described guiding flexible pipe inside is provided with guide section, fillet, the hydraucone be interconnected successively, and described guiding flexible pipe outside has guiding fillet and lateral surface;
Described locking back cover in a tubular form, internal thread is opened and be provided with to the one end, the other end is provided with wears fine mouthful, described locking back cover is provided with internal thread and locking face, the external thread of the internal thread of described locking back cover and described rubber-insulated wire cold joint lower casing is threaded connection, the locking face of described locking back cover bears against the unsteady tooth of described rubber-insulated wire cold joint lower casing, makes the inboard interlock of unsteady teeth directional of described rubber-insulated wire cold joint lower casing and clamps optical cable.
7. single-core fiber mechanical type connector according to claim 1, it is characterized in that, described first wears fine guidepost and described second wears fine guidepost inside and is provided with successively respectively hydraucone and the guide cylinder section be interconnected, described first wears fine guidepost and described second wears fine guidepost outside and is provided with successively respectively cylindrical section, step and inserting section, described the first inserting section of wearing fine guidepost penetrates wearing in fine fixed orifice of described V groove fuse, and described the second inserting section of wearing fine guidepost penetrates in the lock pin fixed orifice of described V groove fuse.
8. single-core fiber mechanical type connector according to claim 4, it is characterized in that, described external assembly also comprises opening board, described opening board cross section is concave character type, described opening board inside is provided with the unlatching muscle, be respectively equipped with and be suitable for the breach that described unlatching muscle passes on described rubber-insulated wire cold joint lower casing, a described rubber-insulated wire cold joint upper casing side relative with dodging breach, described unlatching muscle from this breach, penetrate described rubber-insulated wire cold joint lower casing inside and with the guiding rib end butt of described gland.
9. single-core fiber mechanical type connector according to claim 1, it is characterized in that, the outside of described rubber-insulated wire cold joint upper casing middle-end is provided with four button bit holes, the outside of middle-end is provided with four button bits, and described four button bit holes and described four button bits are interlocked and fix described rubber-insulated wire cold joint upper casing and described rubber-insulated wire cold joint lower casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320384436 CN203350487U (en) | 2013-06-28 | 2013-06-28 | Single-core fiber mechanical joint terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320384436 CN203350487U (en) | 2013-06-28 | 2013-06-28 | Single-core fiber mechanical joint terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350487U true CN203350487U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320384436 Expired - Lifetime CN203350487U (en) | 2013-06-28 | 2013-06-28 | Single-core fiber mechanical joint terminal |
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| CN (1) | CN203350487U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372765A (en) * | 2015-07-31 | 2016-03-02 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN105372764A (en) * | 2015-07-31 | 2016-03-02 | 中航光电科技股份有限公司 | Supporting sleeve and optical fiber connector using supporting sleeve |
-
2013
- 2013-06-28 CN CN 201320384436 patent/CN203350487U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372765A (en) * | 2015-07-31 | 2016-03-02 | 中航光电科技股份有限公司 | Optical fiber connector |
| CN105372764A (en) * | 2015-07-31 | 2016-03-02 | 中航光电科技股份有限公司 | Supporting sleeve and optical fiber connector using supporting sleeve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NINGBO ZHANTONG TELECOM EQUIPMENT CO., LTD. Free format text: FORMER NAME: NINGBO ZHANTONG TELECOM EQUIPMENT INDUSTRIAL CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 315456 Fumin Industrial Zone, Mou Shan town, Ningbo, Zhejiang, Yuyao Patentee after: NINGBO ZHANTONG TELECOM EQUIPMENT Co.,Ltd. Address before: 315456 Fumin Industrial Zone, Mou Shan town, Ningbo, Zhejiang, Yuyao Patentee before: NINGBO ZHANTONG TELECOM EQUIPMENT INDUSTRIAL Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |