CN103135178A - 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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- CN103135178A CN103135178A CN2013100814749A CN201310081474A CN103135178A CN 103135178 A CN103135178 A CN 103135178A CN 2013100814749 A CN2013100814749 A CN 2013100814749A CN 201310081474 A CN201310081474 A CN 201310081474A CN 103135178 A CN103135178 A CN 103135178A
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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 anti-extruding, the characteristics such as not shock-resistant as signal transmssion line, therefore, normally used optical fiber all arranges inside and outside protective seam and cushion with the protection fibre core outside 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 namely 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 to cut or the mode of chemical solvent is removed the fiber optic protection layer directly to the fiber core encapsulation process, as " direct-pass type optical fiber sealing device and manufacture method thereof " (CN101697025A), another kind of approach is the fiber-optic signal transmission channel that the mode of employing ceramic contact pin plug docking connects the water-tight equipment both sides, and ceramic contact pin or ceramic contact pin joint are carried out encapsulation process, realize the 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 be used for the sealing that optical fiber is introduced pressure vessel.CN101697025A is owing to adopting optical fiber metallization welded seal, its sealing property is reliable, has sealing effectiveness preferably under the gases at high pressure impact pressure, but metallized optical fibre and metal cylinder solder technology are difficult to accurate grasp, very easily damage fibre core in welding process, cause light signal to increase in the excess loss of this place's transmission; CN101697026A adopts the glass-to-metal seal window with 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 the junction adding in transmission channel, these two kinds of sealing means all cause light signal to have in various degree loss when sealing station transmits, 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 be used for drawing in wall penetration optical fibers sealing or pipeline the sealing of optical fiber.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 the sealing of optical fibre channel.Because the ceramic contact pin making and the end surface grinding technique that connect now optical fiber are 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 to introduce optical fiber under closed pressure vessel inner high voltage gas impact pressure.
Therefore, if directly existing optical fiber sealing device design is used for the hermetic seal switching device design that closed pressure vessel is introduced optical fiber, can not take into account the optical transmission performance of device and the sealing property after the 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, integrality and the sealing problem through gases at high pressure impact after of seal switching device to the signal transmission when introducing optical fiber as signal transmssion line to solve closed pressure vessel under the 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 along central shaft and runs through encapsulating body and several identical encapsulating cylinders of structure; Be respectively arranged with several joints of optical fibre on described the first fiber-optical socket plate, the second fiber-optical socket plate, 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 and the section of connect the bare fibre of two Optical fiber plugs, and the bare fibre assembly passes respectively the corresponding connection of the joints of optical fibre on encapsulating cylinder and the first fiber-optical socket plate, the second fiber-optical socket plate; Be perfused with liquid sealant in described encapsulating cylinder, liquid sealant fills up encapsulating cylinder inner space and in seal isolation bare fibre assembly two ends, bare fibre assembly middle part; Connect by the identical column of several structures respectively between described encapsulating body and the first fiber-optical socket plate, the second fiber-optical socket plate, 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 is connected with encapsulating body both sides outer wall.
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 in described encapsulating cylinder; Described encapsulating cylinder closes up near the port at its two ends respectively and forms the first interior ring and the second interior ring of encapsulating cylinder; 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 the fluid sealant baffle plate, pad is arranged in the pad groove that arranges on the first fiber orientation ring outer face and is fixedly connected with the first fiber orientation ring by screw; Be embedded in the second optical fiber pressure ring at the second fiber orientation ring, be provided with the pad of fixing the second optical fiber pressure ring on the outside end face of the second fiber orientation 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 and be 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, the large aperture section puts in the first interior ring in the encapsulating cylinder.
Described the first fiber orientation ring is provided with several fiber orientation grooves at the axis direction that the inwall of positioning step and small-bore section is parallel to the first fiber orientation ring; 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 the encapsulating cylinder is fixed in the first fiber orientation ring, the second corresponding fiber orientation groove of 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, uniform several column connecting holes that connect for column that are provided with of the both sides end face of encapsulating body, be respectively arranged with several through holes that insert for column on the column connecting hole position of described the first fiber-optical socket plate, the second corresponding encapsulating body of fiber-optical socket plate both sides end face, the short thread end of column is screwed into the encapsulating body by the column connecting hole and is connected, 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 for the nut that clamps 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 that connects with corresponding high pressure vessel flange, mounting flange with side that flange coordinates on be provided with seal groove, built-in O-ring seal is to realize and being tightly connected of 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, its encapsulating process according to seal length gradation complete, control each sealant pouring and sealing length, can avoid the internal stress that in the fluid sealant process of setting, the colloid contraction produces to form damage to bare fibre; Due to the complete existence of bare fibre overlay, it plays the effect of elastic cord breaker between glass of fiber core body and fluid sealant simultaneously, has further reduced the internal stress that in the sealing glue solidifying process, the glass of fiber core body is produced; Use in the packoff design in fiber orientation ring cooperation encapsulating cylinder and encircle the inner bare fibre of encapsulating cylinder and the isolation of encapsulating cylinder inwall, avoided in the installation of bare fibre assembly and encapsulating process, the wiping of bare fibre being hung and damaged.Use simultaneously above-mentioned four kinds of technological approaches, main body---the glass of fiber core body is in the harmless perforation of encapsulating body both sides to have guaranteed signal transmission in the bare fibre assembly, the decay of the inside and outside optical fiber transmission signal of closed pressure vessel in resistance to compression optical fiber airtight switching box body place only decayed for the ordinary optic fibre plug connects, reduced to greatest extent the decay of seal switching device to transmitting optical signal.
2. the encapsulating body is provided with several encapsulating cylinders, can be by restriction encapsulating cylinder internal diameter size, increase simultaneously encapsulating cylinder quantity, avoid when 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 that radially produces at encapsulating cylinder inwall place in the sealing glue solidifying contraction process is greater than the bounding force of fluid sealant and encapsulating cylinder inwall, thereby makes seal failure at encapsulating cylinder inwall place's formation crackle after causing sealing glue solidifying.
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 purpose of resistance to compression optical fiber airtight switching box body safety fully.
4. the bare fibre assembly adopts one section bare fibre two ends connection Optical fiber plug to be formed by connecting, and therefore can make the bare fibre assembly by conventional technical matters in practicality.
5. encapsulating cylinder sealant pouring and sealing bare fibre stage casing, to the bare fibre sealing with overlay, avoided reaching between oversheath in ordinary optic fibre the leakage-gap between inner sheath and fibre core due to directly, 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, reduce engineering difficulty and the workload of optical fiber introducing container, improved work efficiency.
Description of 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.
Figure: .. .. .. 1 2 Glue tube filling colloidal bare fiber assembly 3 4 5 first fiber optical fiber connector receptacle plate first fiber protection tube 6 7 8 sealant first inner baffle 9. The first optical fiber ferrules 10. first fiber positioning ring 11 second optical fiber positioning ring 12. uprights 13. nut 14 second optical fiber socket board 16 second fiber protection tube 17 second inner ring 18. pressure pin 19 The second optical fiber ferrules 20. seal 101. mounting flange 102. seal groove 103. uprights connecting hole 301. Fibre plug 302. bare optical fiber 401. connector mounting holes 402. through Hole 1001. margins 1002. positioning step 1003 optical fiber positioning groove 1004. pressure pin slot 1201. short thread 1202., long thread.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
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 along central shaft and runs through encapsulating body 1 and several identical encapsulating cylinders of structure; 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, are respectively arranged with several identical joints of optical fibre on the first fiber-optical socket plate 4 and the second fiber-optical socket plate 14; Described bare fibre assembly passes respectively the corresponding connection of the joints of optical fibre on encapsulating cylinder and 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; Connect by the identical several columns of structure respectively between described encapsulating body 1 and the first fiber-optical socket plate 4, the second fiber-optical socket plate 14.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 is connected with encapsulating body 1 inside and outside both sides outer wall.
In the present embodiment, be provided with four identical encapsulating cylinders of structure on described encapsulating body 1, encapsulating cylinder 2 is one of them; Encapsulating body 1 both sides are respectively arranged with four identical columns of structure, and column 12 is one of them; Be provided with 40 cover bare fibre assemblies, bare fibre assembly 3 is covers wherein; Bare fibre assembly 3 comprises one section bare fibre 302 and is connected dorsad the Optical fiber plug that is connected with bare fibre two ends, and Optical fiber plug 301 is one of them; Be respectively arranged with 40 joints of optical fibre on the first fiber-optical socket plate 4, the second fiber-optical socket plate 14, 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 that uses in the present embodiment is the FC Optical fiber plug, the corresponding FC joints of optical fibre of installing on the first fiber-optical socket plate and the second fiber-optical socket plate.
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 in described encapsulating cylinder 2, described encapsulating cylinder 2 closes up near the port at its two ends respectively and forms the first interior ring 7 and the second interior ring 17 of encapsulating cylinder, 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, be provided with several pad grooves exactly on the first fiber orientation ring 10 outer faces, pad one end is arranged in the 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, be provided with the pad of fixing the second optical fiber pressure ring 19 on the outside end face of the second fiber orientation ring 11.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, the second fiber orientation ring 11 in described encapsulating cylinder 2 all are 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, the 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 inwall of the positioning step 1002 of the first fiber orientation ring 10 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 in the first fiber orientation ring 10 axle center.In the present embodiment, be provided with ten fiber orientation grooves on described the first fiber orientation ring 10, 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.Described bare fibre assembly two ends Optical fiber plug is respectively with after corresponding connectors on the first fiber-optical socket plate 4, the second fiber-optical socket plate 14 is connected, 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 the fiber orientation groove by the first optical fiber pressure ring 9, the second optical fiber pressure ring 19; Cram glass cement in the fiber orientation groove with the gap between shutoff bare fibre and fiber orientation groove.
The first fiber-optical socket plate 4 that structure is identical and 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, the connector that the Optical fiber plug grafting that configures 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 that arranges 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 both sides end face of encapsulating body 1 is uniform is provided with four for the column connecting hole of column connection, column connecting hole 103 is one of them, described the first fiber-optical socket plate 4, be respectively arranged with four through holes that insert for columns on the column connecting hole position of the second corresponding encapsulating body 1 both sides end face of fiber-optical socket plate 14, through hole 402 is one of them, the short thread end of column is screwed into encapsulating body 1 by the column connecting hole and is connected, 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 for the nut that clamps 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 the first fiber-optical socket plate 4 be connected fiber-optical socket plate 14 when being connected with encapsulating body 1 by column, can make by the nut location of adjusting the first fiber-optical socket plate 4 and the second fiber-optical socket plate 14 through hole both sides 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 the bare fibre assembly is installed.
Described the first fiber optic protection cylinder 6 is the identical straight cylinder of structure 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.
Be provided with the mounting flange 101 that connects with corresponding high pressure vessel flange in the middle part of the outer wall of described encapsulating body 1, mounting flange with side that flange coordinates on be provided with seal groove 102, built-in O-ring seal 20 is to realize and being tightly connected of 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.
the present embodiment is identical with the basic structure of embodiment 1, difference is, be provided with an encapsulating cylinder that runs through the encapsulating body on described encapsulating body axis, ten cover bare fibre assemblies are set, the bare fibre assembly passes encapsulating cylinder and the first fiber-optical socket plate and is connected with the joints of optical fibre of being connected on the fiber-optical socket plate, the liquid sealant sealing isolation bare fibre assembly of gradation injection two ends in the encapsulating cylinder, 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 (10)
1. resistance to compression optical fiber airtight switching box body, it 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 structures; Its annexation is: described encapsulating body (1) is symmetrically arranged with along central shaft and runs through encapsulating body (1) and several identical encapsulating cylinders of structure; Be respectively arranged with several joints of optical fibre on described the first fiber-optical socket plate (4), the second fiber-optical socket plate (14), 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 and the section of connect the bare fibre of two Optical fiber plugs, and the bare fibre assembly passes respectively the corresponding connection of the joints of optical fibre on encapsulating cylinder and the first fiber-optical socket plate (4), the second fiber-optical socket plate (14); Be perfused with liquid sealant in described encapsulating cylinder, liquid sealant fills up encapsulating cylinder inner space and in seal isolation bare fibre assembly two ends, bare fibre assembly middle part; Connect by the identical column of several structures respectively between described encapsulating body (1) and the first fiber-optical socket plate (4), the second fiber-optical socket plate (14), column and the bare fibre assembly of encapsulating body (1) both sides are outside equipped with the first fiber optic protection cylinder (6) and the second fiber optic protection cylinder (16) that is connected with both sides, encapsulating inside and outside outer wall.
2. resistance to compression optical fiber airtight according to claim 1 switching box body, it is characterized in that: 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 near the port at its two ends respectively and forms the first interior ring and the second interior ring of encapsulating cylinder; 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 the fluid sealant baffle plate, pad is arranged in the pad groove that arranges on the first fiber orientation ring outer face and is fixedly connected with the first fiber orientation ring by screw; Be embedded in the second optical fiber pressure ring at the second fiber orientation ring, be provided with several pads of fixing the second optical fiber pressure ring on the outside end face of the second fiber orientation ring.
3. resistance to compression optical fiber airtight according to claim 2 switching box body, it 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 and be 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, the large aperture section puts in the first interior ring in the first encapsulating cylinder.
4. according to claim 2 or 3 described resistance to compression optical fiber airtights switching box bodys is characterized in that: described the first fiber orientation ring is provided with several fiber orientation grooves at the axis direction that the inwall of positioning step and small-bore section is parallel to the first fiber orientation ring; 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.
5. resistance to compression optical fiber airtight according to claim 1 and 2 switching box body is characterized in that: the bare fibre at described bare fibre assembly two ends inside and outside the encapsulating cylinder is fixed in the first fiber orientation ring, the second corresponding fiber orientation groove of fiber orientation ring by the first optical fiber pressure ring, the second optical fiber pressure ring respectively.
6. resistance to compression optical fiber airtight according to claim 1 switching box body, it is characterized in that: described the first fiber-optical socket plate (4), the second fiber-optical socket plate (14) structure are identical, be respectively arranged with several connector mounting holes on it, the described joints of optical fibre are fixed by screws on connector mounting hole.
7. resistance to compression optical fiber airtight according to claim 1 switching box body, it is characterized in that: the two ends of described column are respectively arranged with short thread and long screw thread, uniform several column connecting holes that connect for column that are provided with of the both sides end face of encapsulating body (1), described the first fiber-optical socket plate (4), be respectively arranged with several through holes that insert for column on the column connecting hole position of the second corresponding encapsulating body of fiber-optical socket plate (14) (1) both sides end face, the short thread end of column is screwed into encapsulating body (1) by the column connecting hole and is connected, 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 for the nut that clamps the first fiber-optical socket plate (4), the second fiber-optical socket plate (14) in through hole both sides.
8. resistance to compression optical fiber airtight according to claim 1 and 2 switching box body, it is characterized in that: 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.
9. resistance to compression optical fiber airtight according to claim 2 switching box body, it 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.
10. 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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| 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 true CN103135178A (en) | 2013-06-05 |
| CN103135178B CN103135178B (en) | 2014-11-19 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN105675167A (en) * | 2016-02-03 | 2016-06-15 | 昆明理工光智检测科技有限公司 | Fiber monitoring through device for oil-immersed transformer, and preparation method for fiber monitoring through device |
| CN106340372A (en) * | 2015-07-14 | 2017-01-18 | 深圳先进技术研究院 | Closed type optical fiber pass-through device and processing method thereof |
| CN106610516A (en) * | 2015-10-23 | 2017-05-03 | 中国科学院沈阳自动化研究所 | Optical fiber watertight wall-through member |
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| CN111175921A (en) * | 2020-02-14 | 2020-05-19 | 中国工程物理研究院核物理与化学研究所 | Protection architecture of long line row close-packed fiber array |
| CN113917641A (en) * | 2021-12-14 | 2022-01-11 | 中国飞机强度研究所 | Aircraft test communication system installation method |
| CN115236805A (en) * | 2022-07-12 | 2022-10-25 | 延边大学 | Optical fiber switching device for communication engineering |
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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 |
| CN106340372A (en) * | 2015-07-14 | 2017-01-18 | 深圳先进技术研究院 | Closed type optical fiber pass-through device and processing method thereof |
| CN106610516A (en) * | 2015-10-23 | 2017-05-03 | 中国科学院沈阳自动化研究所 | Optical fiber watertight wall-through member |
| CN105675167A (en) * | 2016-02-03 | 2016-06-15 | 昆明理工光智检测科技有限公司 | Fiber monitoring through device for oil-immersed transformer, and preparation method for fiber monitoring through device |
| CN107643567A (en) * | 2017-11-08 | 2018-01-30 | 长沙湘计海盾科技有限公司 | The excessively fine sealing structure of stifled core and sealing assembly method of a kind of watertight connector |
| CN107643567B (en) * | 2017-11-08 | 2023-05-09 | 长沙湘计海盾科技有限公司 | Plugging core fiber-passing sealing structure of watertight connector and sealing assembly method |
| CN111175921A (en) * | 2020-02-14 | 2020-05-19 | 中国工程物理研究院核物理与化学研究所 | Protection architecture of long line row close-packed fiber array |
| CN113917641A (en) * | 2021-12-14 | 2022-01-11 | 中国飞机强度研究所 | Aircraft test communication system installation method |
| CN115236805A (en) * | 2022-07-12 | 2022-10-25 | 延边大学 | Optical fiber switching device for communication engineering |
| CN115236805B (en) * | 2022-07-12 | 2024-03-19 | 延边大学 | Optical fiber switching device for communication engineering |
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