CN103135178B - Anti-compression optical fiber air-tight-seal interconnecting box body - Google Patents
Anti-compression optical fiber air-tight-seal interconnecting box body Download PDFInfo
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- CN103135178B CN103135178B CN201310081474.9A CN201310081474A CN103135178B CN 103135178 B CN103135178 B CN 103135178B CN 201310081474 A CN201310081474 A CN 201310081474A CN 103135178 B CN103135178 B CN 103135178B
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Abstract
The invention provides an anti-compression optical fiber air-tight-seal interconnecting box body which comprises a glue filling body, a plurality of bare fiber components, a first optical fiber plug board and a second optical fiber plug board, the first optical fiber plug board and the second optical fiber plug board are arranged on the two sides of the glue filling body, and optical fiber connectors are distributed and installed on each optical fiber plug board. A plurality of glue filling cylinders are symmetrically arranged on the glue filling body along the center axis and penetrate through the glue filling body, and the bare fiber components penetrate through the glue filling cylinders and connected with the optical fiber connectors on the first optical fiber plug board and the second optical fiber plug board to form optical fiber multi-taps. Liquid seal glue is injected into the glue filling cylinders by several times to achieve the sealing of the bare optical fiber components, so that air passages at the two ends of the bare optical fiber components are separated, and optical fiber protective cylinders are arranged outside the bare optical fiber components and connected with the outer walls on the inner side and the outer side of the glue filling body. The problems that when an optical fiber interconnecting device is used for introducing optical fibers in a sealed high-pressure container, signal transmission attenuation is overlarge, and after the device is impacted by high pressure, gas sealing is affected are solved, and the anti-compression optical fiber air-tight-seal interconnecting box body has the advantages of being low in signal transmission attenuation and reliable in sealing performance.
Description
Technical field
The present invention relates to a kind of resistance to compression optical fiber airtight switching box body.Especially can resist the resistance to compression optical fiber airtight switching box body of gases at high pressure impact pressure.
Background technology
Fiber core structure and fibre core material of main part have determined that optical fiber in use has easy essence, not resistance to extruding, the feature such as not shock-resistant as signal transmssion line, therefore, normally used optical fiber all arranges inside and outside protective seam and cushion outward with protection fibre core at its fibre core; The setting of fibre core protective seam, for the optical fiber of needs sealing introducing place, the gap between gap, inner protective layer and fibre core between its inside and outside protective seam becomes the main leakage path after optical fiber seal.For avoiding this two places leakage path, existing a kind of solution route is to take the mode of cutting or chemical solvent to remove fiber optic protection layer directly to fiber core encapsulation process, as " direct-pass type optical fiber sealing device and manufacture method thereof " (CN101697025A), another kind of approach is to adopt the mode of ceramic contact pin plug docking to connect the fiber-optic signal transmission channel of water-tight equipment both sides, and ceramic contact pin or ceramic contact pin joint are carried out to encapsulation process, realize optical fiber seal switching, as " a kind of optical fiber airtight transfer socket " (CN102411172A), " seal socket for wall penetration optical fibers " (CN101634732A), " a kind of isolated optical fiber seal switching device and job operation thereof " (CN101697026A).
" direct-pass type optical fiber sealing device and manufacture method thereof " (CN101697025A) and " a kind of isolated optical fiber seal switching device and job operation thereof " (CN101697026A) two kinds of sealing means introduce the sealing of pressure vessel for optical fiber.CN101697025A is owing to adopting optical fiber metallization welded seal, its sealing property is reliable, under gases at high pressure impact pressure, there is good sealing effectiveness, but metallized optical fibre and metal cylinder solder technology are difficult to accurate grasp, in welding process, very easily damage fibre core, cause light signal to increase in the excess loss of this place's transmission; CN101697026A adopts glass-to-metal seal window by infrared optical fiber isolation in container, signal light transmission route optical glass connects, strengthen packoff and impacted the ageing of less situation lower seal at container inner pressure, but optical glass makes light signal form larger coupling loss in junction adding in transmission channel, these two kinds of sealing means all cause light signal in the time that sealing station transmits, to have loss in various degree, can not control reliably the signal attenuation of switching place, and the anti-gases at high pressure impact capacity of optical glass-metal sealing window relatively a little less than.
" seal socket for wall penetration optical fibers " (CN101634732A), " a kind of optical fiber airtight transfer socket " (CN102411172A) sealing means for drawing the sealing of optical fiber in wall penetration optical fibers sealing or pipeline.These two kinds of sealing means all adopt optical fiber to connect the light path of mode communication seals switching place of ceramic contact pin docking, and injecting glue inside and outside ceramic contact pin are realized to the sealing of optical fibre channel.Owing to connecting now, the ceramic contact pin of optical fiber is made and end surface grinding technique is relatively perfect, the light transmission attenuation of packoff is little, but because ceramic contact pin effective sealing section is short, a little less than causing the impact resistance of device, the effective sealing time is short, only can be used for body of wall both sides or pipeline inside and outside without the seal isolation in pressure difference or the less situation of pressure difference, can not be applied under closed pressure vessel inner high voltage gas impact pressure and introduce optical fiber.
Therefore,, if directly existing optical fiber sealing device design is introduced to the hermetic seal switching device design of optical fiber for closed pressure vessel, can not take into account the sealing property after the optical transmission performance of device and gases at high pressure impact.Be unfavorable for that in closed pressure vessel, light signal is complete, be transferred to safely container and be accepted outward.
Summary of the invention
The object of the present invention is to provide a kind of resistance to compression optical fiber airtight switching box body, the integrality of seal switching device to signal transmission and the sealing problem after gases at high pressure impact while introducing optical fiber as signal transmssion line to solve closed pressure vessel under gases at high pressure impact pressure.
Resistance to compression optical fiber airtight switching box body of the present invention, be characterized in, described switching box body comprises circular encapsulating body, identical bare fibre assembly, the first fiber-optical socket plate, the second fiber-optical socket plate, column, the first fiber optic protection cylinder, the second fiber optic protection cylinder of number nested structure; Its annexation is that described encapsulating body is symmetrically arranged with and runs through encapsulating body and the identical several encapsulating cylinders of structure along central shaft; On described the first fiber-optical socket plate, the second fiber-optical socket plate, be respectively arranged with several joints of optical fibre, the first fiber-optical socket plate, the second fiber-optical socket plate are symmetrical arranged dorsad in encapsulating body both sides; Described bare fibre assembly comprises that two Optical fiber plugs are connected the bare fibre of two Optical fiber plugs with one section, and bare fibre assembly is respectively through encapsulating cylinder and the corresponding connection of the joints of optical fibre on the first fiber-optical socket plate, the second fiber-optical socket plate; In described encapsulating cylinder, be perfused with liquid sealant, liquid sealant fills up encapsulating cylinder inner space and in seal isolation bare fibre assembly two ends, bare fibre assembly middle part; Between described encapsulating body and the first fiber-optical socket plate, the second fiber-optical socket plate, connect respectively by the identical column of several structures, the column of encapsulating body both sides and bare fibre assembly are outside equipped with the first fiber optic protection cylinder and the second fiber optic protection cylinder that are connected with encapsulating body both sides outer wall.
In described encapsulating cylinder, comprise the first fiber orientation ring, the second fiber orientation ring, the first optical fiber pressure ring, the second optical fiber pressure ring, fluid sealant baffle plate, pad; Described encapsulating cylinder closes up and forms the first interior ring and the second interior ring of encapsulating cylinder near port at its two ends respectively; The first interior ring and the second interior ring are respectively arranged with the first fiber orientation ring and the second fiber orientation ring outward, be embedded in the first optical fiber pressure ring at the first fiber orientation ring, the first optical fiber pressure ring is outside equipped with the fluid sealant baffle plate for sealing encapsulating cylinder medial extremity, be outside equipped with the pad of fixing seal glue baffle plate at fluid sealant baffle plate, pad is arranged in the pad groove arranging on the first fiber orientation ring outer face and by screw and is fixedly connected with the first fiber orientation ring; Be embedded in the second optical fiber pressure ring at the second fiber orientation ring, on the outside end face of the second fiber orientation ring, be provided with the pad of fixing the second optical fiber pressure ring.
Described the first fiber orientation ring, the second fiber orientation ring have included small-bore section and large aperture section; One end of the small-bore section of described the first fiber orientation ring in fiber orientation ring end radially extension form not care about one's appearance being connected by screw with the first interior ring of encapsulating cylinder, the other end of the small-bore section formation positioning step that inwardly closes up; The straight cylindrical of the large aperture Duan Weiyi section thin-walled of the first fiber orientation ring, large aperture section puts in the first interior ring in encapsulating cylinder.
The axis direction that described the first fiber orientation ring is parallel to the first fiber orientation ring at the inwall of positioning step and small-bore section is provided with several fiber orientation grooves; The bottom land of fiber orientation groove is semi-circular shape, and bottom land is identical with pore radius in the section of large aperture apart from the distance of the first fiber orientation annulate shaft heart; Described the second fiber orientation ring is identical with the basic structure of the first fiber orientation ring.
The bare fibre at described bare fibre assembly two ends inside and outside encapsulating cylinder is fixed in the first fiber orientation ring, the corresponding fiber orientation groove of the second fiber orientation ring by the first optical fiber pressure ring, the second optical fiber pressure ring respectively.
Described the first fiber-optical socket plate, the second fiber-optical socket plate structure are identical, are provided with connector mounting hole on it, and the described joints of optical fibre are fixed by screws on connector mounting hole.
The two ends of described column are respectively arranged with short thread and long screw thread, the uniform several column connecting holes that connect for column that are provided with of both sides end face of encapsulating body, on the column connecting hole position of described the first fiber-optical socket plate, the corresponding encapsulating body of the second fiber-optical socket plate both sides end face, be respectively arranged with the several through holes that insert for column, the short thread end of column is screwed into encapsulating body and is connected by column connecting hole, and the long thread end of column passes respectively the through hole of the first fiber-optical socket plate and the second fiber-optical socket plate; Be respectively arranged with the nut for clamping the first fiber-optical socket plate and the second fiber-optical socket plate in through hole both sides.
The external wall of described encapsulating middle part is provided with the mounting flange connecting with corresponding high pressure vessel flange, and mounting flange is provided with seal groove on the side coordinating with flange, and built-in O-ring seal is tightly connected with realization and high pressure vessel flange.
The quantity of described encapsulating cylinder be set to one or more than; The quantity that described encapsulating body both sides connect the column of the first fiber-optical socket plate and the second fiber-optical socket plate be set to respectively three or more than.
Described liquid sealant injects by the second optical fiber pressure ring center gradation of each encapsulating cylinder outboard end, and liquid sealant adopts shrinkage factor lower than 1% epoxy resin assembly adhesive.
Described the first fiber orientation ring, the first optical fiber pressure ring, the second fiber orientation ring, the second optical fiber pressure ring, fluid sealant baffle plate, pad are made by polytetrafluoroethylmaterial material.
the invention has the beneficial effects as follows:
1. the fluid sealant in the encapsulating cylinder in the present invention adopts shrinkage factor lower than the bare fibre in the middle part of 1% epoxy resin assembly adhesive sealing bare fibre assembly, according to seal length, gradation completes its encapsulating process, control each sealant pouring and sealing length, can avoid colloid in fluid sealant process of setting to shrink the internal stress producing to bare fibre formation damage; Due to the complete existence of bare fibre overlay, the effect that it plays elastic cord breaker between glass of fiber core body and fluid sealant, has further reduced the internal stress in sealing glue solidifying process, glass of fiber core body being produced simultaneously; In packoff design, use ring in fiber orientation ring cooperation encapsulating cylinder by inner encapsulating cylinder bare fibre and the isolation of encapsulating cylinder inwall, to avoid, in the installation of bare fibre assembly and encapsulating process, the wiping of bare fibre is hung to damage.Use above-mentioned four kinds of technological approaches simultaneously, main body---glass of fiber core body is in the harmless perforation of encapsulating body both sides to have ensured the transmission of signal in bare fibre assembly, the inside and outside optical fiber transmission signal of closed pressure vessel is only decayed for ordinary optic fibre plug connects in the decay at resistance to compression optical fiber airtight switching box body place, reduced to greatest extent the decay of seal switching device to transmitting optical signal.
2. encapsulating body is provided with several encapsulating cylinders, can be by restriction encapsulating cylinder internal diameter size, increase encapsulating cylinder quantity simultaneously, avoid in the time that more bare fibre assembly carries out sealant pouring and sealing by single encapsulating cylinder, because encapsulating cylinder internal diameter is excessive, so that the fluid sealant internal stress radially producing at encapsulating cylinder inwall place is greater than the bounding force of fluid sealant and encapsulating cylinder inwall, thereby make seal failure at encapsulating cylinder inwall place formation crackle after causing sealing glue solidifying in sealing glue solidifying contraction process.
3. resistance to compression optical fiber airtight switching box body of the present invention can be according to gas pressure intensity in the closed pressure vessel of practical application, design encapsulating cylinder and seal section bare fibre length, so that the fluid sealant of effective sealing segment length can be resisted corresponding gases at high pressure impact pressure, reach the measuring body object of resistance to compression optical fiber airtight switching box body safety completely.
4. bare fibre assembly adopts one section of bare fibre two ends connection Optical fiber plug to be formed by connecting, and therefore in practicality, can make bare fibre assembly by conventional technical matters.
5. encapsulating cylinder sealant pouring and sealing bare fibre stage casing, to the bare fibre sealing with overlay, has avoided the leakage-gap between oversheath and between inner sheath and fibre core in ordinary optic fibre due to directly, has reduced the technical difficulty of sealing.
6. resistance to compression optical fiber airtight switching box body of the present invention is owing to adopting easy-to-mount socket seal box body form, be very easy to the hermetic seal switching of infrared optical fiber in closed pressure vessel, the engineering difficulty and the workload that have reduced optical fiber introducing container, improved work efficiency.
Brief description of the drawings
Fig. 1 is resistance to compression optical fiber airtight interconnecting device body structure schematic diagram of the present invention;
Fig. 2 a is the encapsulating body front view in the present invention;
Fig. 2 b is that the I-I of Fig. 2 a is to cut-open view;
Fig. 3 is the structural representation after the encapsulating wound packages in the present invention is joined;
Fig. 4 is the bare fibre modular construction schematic diagram in the present invention;
Fig. 5 a is the first fiber-optical socket plate front view in the present invention;
Fig. 5 b is that the I-I of Fig. 5 a is to cut-open view;
Fig. 6 a is the first fiber orientation ring front view in the present invention;
Fig. 6 b is that the I-I of Fig. 5 a is to cut-open view;
Fig. 7 is the pillar construction schematic diagram in the present invention.
In figure: 1. the long screw thread of encapsulating body 2. encapsulating cylinder 3. bare fibre assembly 4. first fiber-optical socket plate 5. joints of optical fibre interior ring 8. fluid sealant baffle plate 9. first optical fiber pressure ring 10. first fiber orientation ring 11. second fiber orientation ring 12. column 13. nut 14. second fiber-optical socket plate interior ring 18. pad 19. second optical fiber pressure ring 20. O-ring seal 101. mounting flange 102. seal groove 103. column connecting hole 301. Optical fiber plug 302. bare fibre 401. connector mounting hole 402. through hole 1001. not care about one's appearance 1002. positioning step 1003. fiber orientation groove 1004. pad groove 1201. short thread 1202. of 16. second fiber optic protection cylinder 17. second of 6. first fiber optic protection cylinder 7. first.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
As shown in Fig. 1～7, resistance to compression optical fiber airtight switching box body of the present invention comprises circular encapsulating body 1, number cover bare fibre assembly, the first fiber-optical socket plate 4, the second fiber-optical socket plate 14, column, the first fiber optic protection cylinder 6, the second fiber optic protection cylinder 16; Its annexation is that described encapsulating body 1 is symmetrically arranged with and runs through encapsulating body 1 and the identical several encapsulating cylinders of structure along central shaft; Described the first fiber-optical socket plate 4, the second fiber-optical socket plate 14 are symmetrical arranged dorsad in encapsulating body 1 both sides, on the first fiber-optical socket plate 4 and the second fiber-optical socket plate 14, are respectively arranged with identical several joints of optical fibre; Described bare fibre assembly is respectively through encapsulating cylinder and the corresponding connection of the joints of optical fibre on the first fiber-optical socket plate 4, the second fiber-optical socket plate 14; Liquid sealant is injected in gradation in described encapsulating cylinder, and liquid sealant fills up encapsulating cylinder inner space and in seal isolation bare fibre assembly two ends, bare fibre assembly middle part; Between described encapsulating body 1 and the first fiber-optical socket plate 4, the second fiber-optical socket plate 14, connect by the identical several columns of structure respectively.The column of described encapsulating body 1 both sides and bare fibre assembly are outside equipped with the first fiber optic protection cylinder 6 and the second fiber optic protection cylinder 16 that are connected with encapsulating body 1 inside and outside both sides outer wall.
In the present embodiment, be provided with four encapsulating cylinders that structure is identical on described encapsulating body 1, encapsulating cylinder 2 is one of them; Encapsulating body 1 both sides are respectively arranged with four columns that structure is identical, and column 12 is one of them; Be provided with 40 cover bare fibre assemblies, bare fibre assembly 3 is wherein a set of; Bare fibre assembly 3 comprises one section of bare fibre 302 and two Optical fiber plugs that are connected with bare fibre two ends dorsad, and Optical fiber plug 301 is one of them; On the first fiber-optical socket plate 4, the second fiber-optical socket plate 14, be respectively arranged with 40 joints of optical fibre, the joints of optical fibre 5 are one of them; The respectively corresponding connector mounting hole of each joints of optical fibre, connector mounting hole 401 is one of them.
The Optical fiber plug using in the present embodiment is FC Optical fiber plug, and correspondence is installed the FC joints of optical fibre on the first fiber-optical socket plate and the second fiber-optical socket plate.
In described encapsulating cylinder 2, comprise the first fiber orientation ring 10, the second fiber orientation ring 11, the first optical fiber pressure ring 9, the second optical fiber pressure ring 19, fluid sealant baffle plate 8, pad 18, described encapsulating cylinder 2 closes up and forms the first interior ring 7 and the second interior ring 17 of encapsulating cylinder near port at its two ends respectively, outer the first fiber orientation ring 10 and the second fiber orientation ring 11 of arranging respectively of the first interior ring 7 and the second interior ring 17, be embedded in the first optical fiber pressure ring 9 at the first fiber orientation ring 10, the first optical fiber pressure ring 9 is outside equipped with the fluid sealant baffle plate 8 for sealing encapsulating cylinder 2 medial extremitys, be outside equipped with the pad of fixing seal glue baffle plate at fluid sealant baffle plate 8, specifically, on the first fiber orientation ring 10 outer faces, be provided with several pad grooves exactly, pad one end is arranged in pad groove and by screw and is fixedly connected with the first fiber orientation ring 10, the other end is pushed down fluid sealant baffle plate 8 edge fixing seal glue baffle plates, be embedded in the second optical fiber pressure ring 19 at the second fiber orientation ring 11, on the outside end face of the second fiber orientation ring 11, be provided with the pad of fixing the second optical fiber pressure ring 19.In the present embodiment, be provided with five pads of fixing the second optical fiber pressure ring 19 on the outside end face of the second fiber orientation ring 11, be outside equipped with the pad of five fixing seal glue baffle plates at fluid sealant baffle plate 8, pad 18 is one of them.Each pad is installed in a pad groove, and pad groove 1004 is one of them
The first fiber orientation ring 10 in described encapsulating cylinder 2, the second fiber orientation ring 11 are all divided into small-bore section and large aperture section by its diameter of bore size; One end of the small-bore section of described the first fiber orientation ring 10 in fiber orientation ring end radially extension form not care about one's appearance 1001 and be fixedly connected with by screw with the outer wall end face of the first interior ring 7 of encapsulating cylinder 2, the other end of small-bore section inwardly closes up and forms positioning step 1002; The straight cylindrical of the large aperture Duan Weiyi section thin-walled of the first fiber orientation ring 10, large aperture section puts in the first interior ring 7 in encapsulating cylinder 2, make the first interior ring 7 and the 2 inner space isolation of encapsulating cylinder, to avoid bare fibre and the damage of encapsulating cylinder inwall wiping extension in the installation of bare fibre assembly and encapsulating process.The axis direction that is parallel to the first fiber orientation ring 10 at the positioning step 1002 of the first fiber orientation ring 10 and the inwall of small-bore section is provided with several fiber orientation grooves, the bottom land of fiber orientation groove is semi-circular shape, and bottom land is identical with pore radius in the section of large aperture apart from the distance in the first fiber orientation ring 10 axle center.In the present embodiment, on described the first fiber orientation ring 10, be provided with ten fiber orientation grooves, fiber orientation groove 1003 is one of them.Described the second fiber orientation ring 11 is identical with the structure of the first fiber orientation ring 10, and the second fiber orientation ring 11 is fixedly connected with by screw with the outer wall end face of the second interior ring 17.After described bare fibre assembly two ends Optical fiber plug is connected with corresponding connectors on the first fiber-optical socket plate 4, the second fiber-optical socket plate 14 respectively, enter corresponding fiber orientation groove at the first fiber orientation ring 10 and second fiber orientation ring 11 place's bare fibres, and be fixed in fiber orientation groove by the first optical fiber pressure ring 9, the second optical fiber pressure ring 19; In fiber orientation groove, cram glass cement with the gap between shutoff bare fibre and fiber orientation groove.
The first fiber-optical socket plate 4 and the second fiber-optical socket plate 14 that structure is identical are symmetrical arranged dorsad in encapsulating body 1 both sides, on the first fiber-optical socket plate 4, the connector that the Optical fiber plug grafting configuring on corresponding 40 cover bare fibre assemblies is used is provided with 40 connector mounting holes, and 40 joints of optical fibre are fixed by screws in respectively on connector mounting hole; The connector mounting hole position arranging on the second fiber-optical socket plate 14 is corresponding identical with the first fiber-optical socket plate 4 with the connector of quantity and installation.
The two ends of described column 12 are respectively arranged with short thread 1201 and long screw thread 1202, the uniform column connecting holes that are provided with the connection of four confession columns of both sides end face of encapsulating body 1, column connecting hole 103 is one of them, described the first fiber-optical socket plate 4, on the column connecting hole position of the corresponding encapsulating body 1 both sides end face of the second fiber-optical socket plate 14, be respectively arranged with four through holes that insert for column, through hole 402 is one of them, the short thread end of column is screwed into encapsulating body 1 and is connected by column connecting hole, the long thread end of column passes respectively the through hole of the first fiber-optical socket plate 4 or the second fiber-optical socket plate 14, be respectively arranged with the nut for clamping the first fiber-optical socket plate 4 or the second fiber-optical socket plate 14 in each through hole both sides.In the present embodiment, nut 13 is one of them.The setting of long thread end and nut, make in the time that the first fiber-optical socket plate 4 is connected with encapsulating body 1 by column with the second fiber-optical socket plate 14, can make the medial and lateral end face distance of the first fiber-optical socket plate 4 and the second fiber-optical socket plate 14 and encapsulating body 1 suitably so that bare fibre assembly is installed by adjusting the nut location of the first fiber-optical socket plate 4 and the second fiber-optical socket plate 14 through hole both sides.
Described the first fiber optic protection cylinder 6 is the straight cylinder that structure is identical with the second fiber optic protection cylinder 16; its internal diameter is identical with the external diameter of the first fiber-optical socket plate 4, the second fiber-optical socket plate 14, encapsulating body 1 both ends of the surface, and the first fiber optic protection cylinder 6 is fixedly connected with the second fiber-optical socket plate 14 with encapsulating body 1 both sides outer wall and the first fiber-optical socket plate 4 by screw respectively with the second fiber optic protection cylinder 16.
The outer wall middle part of described encapsulating body 1 is provided with the mounting flange 101 connecting with corresponding high pressure vessel flange, mounting flange is provided with seal groove 102 on the side coordinating with flange, and built-in O-ring seal 20 is tightly connected with realization and high pressure vessel flange.
Described liquid sealant injects by the second optical fiber pressure ring center gradation of each encapsulating cylinder outboard end, and liquid sealant adopts shrinkage factor lower than 1% epoxy resin assembly adhesive.
Described fiber orientation ring, optical fiber pressure ring, fluid sealant baffle plate, pad by ageing-resistant, engineering properties is softer, the polytetrafluoroethylmaterial material of surperficial low-friction coefficient is made.
Embodiment 2
The present embodiment is identical with the basic structure of embodiment 1, difference is, on described encapsulating body axis, be provided with an encapsulating cylinder that runs through encapsulating body, ten cover bare fibre assemblies are set, bare fibre assembly is connected with the joints of optical fibre on the first fiber-optical socket plate and the second fiber-optical socket plate through encapsulating cylinder, in encapsulating cylinder, liquid sealant sealing isolation bare fibre assembly two ends are injected in gradation, the first fiber-optical socket plate and the second fiber-optical socket plate of corresponding encapsulating body both sides are respectively arranged with ten connector mounting holes, ten joints of optical fibre are installed, maximum salable switching ten road optical fiber on airtight switching hyperbar container.
Claims (8)
1. a resistance to compression optical fiber airtight switching box body, is characterized in that: described switching box body comprises circular encapsulating body (1), identical bare fibre assembly, the first fiber-optical socket plate (4), the second fiber-optical socket plate (14), column, the first fiber optic protection cylinder (6), the second fiber optic protection cylinder (16) of number nested structure; Its annexation is: described encapsulating body (1) is symmetrically arranged with and runs through encapsulating body (1) and the identical several encapsulating cylinders of structure along central shaft; On described the first fiber-optical socket plate (4), the second fiber-optical socket plate (14), be respectively arranged with several joints of optical fibre, the first fiber-optical socket plate (4), the second fiber-optical socket plate (14) are symmetrical arranged dorsad in encapsulating body (1) both sides; Described bare fibre assembly comprises that two Optical fiber plugs are connected the bare fibre of two Optical fiber plugs with one section, and bare fibre assembly is respectively through encapsulating cylinder and the corresponding connection of the joints of optical fibre on the first fiber-optical socket plate (4), the second fiber-optical socket plate (14); In described encapsulating cylinder, be perfused with liquid sealant, liquid sealant fills up encapsulating cylinder inner space and in seal isolation bare fibre assembly two ends, bare fibre assembly middle part; Between described encapsulating body (1) and the first fiber-optical socket plate (4), the second fiber-optical socket plate (14), connect respectively by the identical column of several structures, the column of encapsulating body (1) both sides and bare fibre assembly are outside equipped with the first fiber optic protection cylinder (6) and the second fiber optic protection cylinder (16) that are connected with both sides, encapsulating inside and outside outer wall; Described encapsulating cylinder comprises the first fiber orientation ring, the second fiber orientation ring, the first optical fiber pressure ring, the second optical fiber pressure ring, fluid sealant baffle plate, pad; Described encapsulating cylinder closes up and forms the first interior ring and the second interior ring of encapsulating cylinder near port at its two ends respectively; The first interior ring and the second interior ring are respectively arranged with the first fiber orientation ring and the second fiber orientation ring outward, be embedded in the first optical fiber pressure ring at the first fiber orientation ring, the first optical fiber pressure ring is outside equipped with the fluid sealant baffle plate for sealing encapsulating cylinder medial extremity, be outside equipped with several pads of fixing seal glue baffle plate at fluid sealant baffle plate, pad is arranged in the pad groove arranging on the first fiber orientation ring outer face and by screw and is fixedly connected with the first fiber orientation ring; Be embedded in the second optical fiber pressure ring at the second fiber orientation ring, on the outside end face of the second fiber orientation ring, be provided with several pads of fixing the second optical fiber pressure ring; The two ends of described column are respectively arranged with short thread and long screw thread, the uniform several column connecting holes that connect for column that are provided with of both sides end face of encapsulating body (1), on the column connecting hole position of described the first fiber-optical socket plate (4), the second corresponding encapsulating body of fiber-optical socket plate (14) (1) both sides end face, be respectively arranged with the several through holes that insert for column, the short thread end of column is screwed into encapsulating body (1) and is connected by column connecting hole, and the long thread end of column passes respectively the through hole of the first fiber-optical socket plate (4) and the second fiber-optical socket plate (14); Be respectively arranged with the nut for clamping the first fiber-optical socket plate (4), the second fiber-optical socket plate (14) in through hole both sides.
2. resistance to compression optical fiber airtight switching box body according to claim 1, is characterized in that: described the first fiber orientation ring, the second fiber orientation ring have included small-bore section and large aperture section; One end of the small-bore section of described the first fiber orientation ring in fiber orientation ring end radially extension form not care about one's appearance being connected with the first interior ring of encapsulating cylinder, the other end of the small-bore section formation positioning step that inwardly closes up; The straight cylindrical of the large aperture Duan Weiyi section thin-walled of the first fiber orientation ring, large aperture section puts in the first interior ring in the first encapsulating cylinder.
3. resistance to compression optical fiber airtight switching box body according to claim 1 and 2, is characterized in that: the axis direction that described the first fiber orientation ring is parallel to the first fiber orientation ring at the inwall of positioning step and small-bore section is provided with several fiber orientation grooves; The bottom land of fiber orientation groove is semi-circular shape, and bottom land is identical with pore radius in the section of large aperture apart from the distance of the first fiber orientation annulate shaft heart; Described the second fiber orientation ring is identical with the basic structure of the first fiber orientation ring.
4. resistance to compression optical fiber airtight switching box body according to claim 1, is characterized in that: the bare fibre at described bare fibre assembly two ends inside and outside encapsulating cylinder is fixed in the first fiber orientation ring, the corresponding fiber orientation groove of the second fiber orientation ring by the first optical fiber pressure ring, the second optical fiber pressure ring respectively.
5. resistance to compression optical fiber airtight switching box body according to claim 1, it is characterized in that: described the first fiber-optical socket plate (4), the second fiber-optical socket plate (14) structure are identical, on it, be respectively arranged with several connector mounting holes, the described joints of optical fibre are fixed by screws on connector mounting hole.
6. resistance to compression optical fiber airtight switching box body according to claim 1, it is characterized in that: described liquid sealant injects by the second optical fiber pressure ring center gradation of each encapsulating cylinder outboard end, liquid sealant adopts shrinkage factor lower than 1% epoxy resin assembly adhesive.
7. resistance to compression optical fiber airtight switching box body according to claim 1, is characterized in that: described the first fiber orientation ring, the second fiber orientation ring, the first optical fiber pressure ring, the second optical fiber pressure ring, fluid sealant baffle plate, pad are made by polytetrafluoroethylmaterial material.
8. resistance to compression optical fiber airtight according to claim 1 switching box body, is characterized in that: the quantity of described encapsulating cylinder be set to one or more than; The quantity that described encapsulating body (1) both sides connect the column of the first fiber-optical socket plate (4) and the second fiber-optical socket plate (14) be set to respectively three or more than.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310081474.9A CN103135178B (en) | 2013-03-15 | 2013-03-15 | Anti-compression optical fiber air-tight-seal interconnecting box body |
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| CN201310081474.9A CN103135178B (en) | 2013-03-15 | 2013-03-15 | Anti-compression optical fiber air-tight-seal interconnecting box body |
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| CN103135178A CN103135178A (en) | 2013-06-05 |
| CN103135178B true CN103135178B (en) | 2014-11-19 |
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|---|---|---|---|---|
| CN103472550B (en) * | 2013-09-09 | 2015-07-08 | 国家电网公司 | Cable interconnecting device for high-voltage transmission line |
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| CN102736188B (en) * | 2012-07-02 | 2014-06-18 | 南京全信传输科技股份有限公司 | Sintered gas-sealed optical fiber socket |
| CN203164473U (en) * | 2013-03-15 | 2013-08-28 | 中国工程物理研究院核物理与化学研究所 | Anti-compression optical fiber hermetic seal switching box body |
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2013
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