CN203164473U - Anti-compression optical fiber hermetic seal switching box body - Google Patents
Anti-compression optical fiber hermetic seal switching box body Download PDFInfo
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- CN203164473U CN203164473U CN 201320116312 CN201320116312U CN203164473U CN 203164473 U CN203164473 U CN 203164473U CN 201320116312 CN201320116312 CN 201320116312 CN 201320116312 U CN201320116312 U CN 201320116312U CN 203164473 U CN203164473 U CN 203164473U
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Abstract
The utility model provides an anti-compression optical fiber hermetic seal switching box body. The switching box body comprises a glue poring body, multiple sets of bare fiber assemblies, and a first optical fiber socket board and a second optical fiber socket board which are disposed on two sides of the glue porting body. Optical fiber connectors are uniformly distributed on each optical fiber socket board. The glue porting body is symmetrically provided with multiple glue poring cylinders penetrating through the glue porting body along the central axis. The bare optical fiber assemblies penetrate through the glue porting cylinders and are connected with the optical fiber connectors on the first optical fiber socket board and the second optical fiber socket board so that an optical fiber switching socket is formed. The sealing of the bare fiber assemblies is realized by injecting liquid sealants into the glue poring cylinders by several times, and thus air channels across two ends of the bare fiber assemblies are cut off. An optical fiber protective cylinder is arranged outside every bare optical fiber assembly, and is connected with an inner wall and an outer wall of the glue poring body. The anti-compression optical fiber hermetic seal switching box body solves a problem that signal transmission attenuation is too large when optical fibers are lead into a sealed high-pressure container by using the optical fiber switching arrangement and a problem of hermetic seal of the optical fiber switching arrangement after high-voltage impact, and the anti-compression optical fiber hermetic seal switching box body has the advantages of low signal transmission attenuation and reliable sealing performance.
Description
Technical field
The utility model relates to a kind of resistance to compression optical fiber hermetic seal switching box body.Especially can resist the resistance to compression optical fiber hermetic seal switching box body of gases at high pressure impact pressure.
Background technology
Fiber core structure and fibre core material of main part have determined optical fiber in use to have easy essence, not anti-extruding, 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 behind the 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 butt joint connects the water-tight equipment both sides; and ceramic contact pin or ceramic contact pin joint carried out encapsulation process; the switching of realization optical fiber seal, as " a kind of optical fiber hermetic seal multi-tap " (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 adopt optical fiber metallization welded seal, its sealing property is reliable, under the gases at high pressure impact pressure, has sealing effectiveness preferably, but metallization optical fiber and metal cylinder solder technology are difficult to accurate grasp, very easily damage fibre core in the welding process, cause light signal to increase in the excess loss of this place's transmission; CN101697026A adopts the glass-to-metal seal window that infrared optical fiber in the container is isolated, signal light transmission route optical glass connects, strengthen packoff and impacted the ageing of less situation lower seal at container inner pressure, but the adding of optical glass in transmission channel makes light signal form bigger coupling loss in the junction, these two kinds of sealing means all cause light signal to have in various degree loss when sealing station transmits, can not control the signal attenuation of switching place reliably, 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 hermetic seal multi-tap " (CN102411172A) sealing means be used for drawing in wall penetration optical fibers sealing or the pipeline 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 butt joint, and injecting glue inside and outside the ceramic contact pin are realized the sealing of optical fibre channel.The ceramic contact pin of optical fiber is made and end surface grinding technology is more perfect relatively owing to connect now, the light transmission attenuation of packoff is little, but because the effective seal section of ceramic contact pin is short, cause a little less than the impact resistance of device, effectively the sealing time is short, only can be used for the seal isolation under the inside and outside no pressure difference of body of wall both sides or pipeline or the less situation of pressure difference, can not be applied to introduce optical fiber under the 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 light signal is complete in the closed pressure vessel, be transferred to container safely and be accepted outward.
Summary of the invention
The purpose of this utility model is to provide a kind of resistance to compression optical fiber hermetic seal switching box body, and seal switching device is to integrality and the sealing problem after gases at high pressure impact of 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 hermetic seal switching box body of the present utility model, be characterized in that 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 tube, the second fiber optic protection tube 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 tubes of structure; Be respectively arranged with several joints of optical fibre on the described 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 two Optical fiber plugs and one section bare fibre that is connected two Optical fiber plugs, and the bare fibre assembly passes the corresponding connection of the joints of optical fibre on encapsulating tube and the first fiber-optical socket plate, the second fiber-optical socket plate respectively; Be perfused with liquid sealant in the described encapsulating tube, liquid sealant fills up encapsulating tube 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 tube and the second fiber optic protection tube 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 the described encapsulating tube; Described encapsulating tube respectively its two ends close up to form near the port encapsulating tube first in encircle in the ring and second; The outer first fiber orientation ring and the second fiber orientation ring of being respectively arranged with of ring in the ring and second in first, 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 tube medial extremity, be outside equipped with the pad of fixing seal glue baffle plate at the fluid sealant baffle plate, pad is installed in the pad groove that arranges on the first fiber orientation ring outer face and by screw fixedlys connected with the first fiber orientation ring; Be embedded in the second optical fiber pressure ring at the second fiber orientation ring, the outside end face of the second fiber orientation ring is provided with the pad of fixing the second optical fiber pressure ring.
The described 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 the described first fiber orientation ring fiber orientation ring end radially extension form not care about one's appearance and with the encapsulating tube first in encircle and be connected by screw, 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 put in ring in first in the encapsulating tube.
The described 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; The described 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 tube 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.
The described first fiber-optical socket plate, the second fiber-optical socket plate structure are identical, are provided with the connector mounting hole on it, and the described joints of optical fibre are fixed on the connector mounting hole by screw.
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 the described first fiber-optical socket plate, the corresponding encapsulating body of second 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 the through hole of the first fiber-optical socket plate and the second fiber-optical socket plate respectively; Be respectively arranged with for the nut that clamps the first fiber-optical socket plate and the second fiber-optical socket plate in the 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, and the side that mounting flange cooperates with flange is provided with seal groove, and built-in O-ring seal is tightly connected with realization and high pressure vessel flange.
The quantity of described encapsulating tube 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 tube outboard end, and liquid sealant adopts shrinkage factor to be lower than 1% epoxy resin assembly adhesive.
The described 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 beneficial effects of the utility model are:
1. the fluid sealant in the encapsulating tube in the utility model adopts shrinkage factor to be lower than the bare fibre at 1% epoxy resin assembly adhesive sealing bare fibre assembly middle part, its encapsulating process according to seal length gradation finish, control each sealant pouring and sealing length, can avoid the internal stress that the colloid contraction produces in the fluid sealant process of setting that bare fibre is formed damage; Owing to the complete existence of bare fibre overlay, it plays elastic cord breaker between glass of fiber core body and fluid sealant effect has further reduced the internal stress that in the sealing glue solidifying process glass of fiber core body is produced simultaneously; Use the fiber orientation ring to cooperate in the encapsulating tube ring that the inner bare fibre of encapsulating tube is isolated with encapsulating tube inwall in the packoff design, avoided the bare fibre assembly install and the encapsulating process in the wiping of bare fibre hung damage.Use above-mentioned four kinds of technological approaches simultaneously, 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 hermetic seal switching box body place only decayed for the ordinary optic fibre plug connects, reduced the decay of seal switching device to transmitting optical signal to greatest extent.
2. the encapsulating body is provided with several encapsulating tubes, can be by restriction encapsulating tube internal diameter size, increase encapsulating tube quantity simultaneously, avoid when more bare fibre assembly carries out sealant pouring and sealing by single encapsulating tube, because encapsulating tube internal diameter is excessive, so that the fluid sealant internal stress that radially produces at encapsulating tube inwall place in the sealing glue solidifying contraction process is greater than the bounding force of fluid sealant and encapsulating tube inwall, thereby makes seal failure at encapsulating tube inwall place formation crackle after causing sealing glue solidifying.
3. resistance to compression optical fiber hermetic seal switching box body of the present utility model can be according to gas pressure intensity in the closed pressure vessel of practical application, design encapsulating tube and seal section bare fibre length, so that effectively the fluid sealant of seal section length can be resisted corresponding gases at high pressure impact pressure, reach the measuring body purpose of resistance to compression optical fiber hermetic seal 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 tube sealant pouring and sealing bare fibre stage casing owing to directly to the bare fibre sealing of band overlay, avoided between the interior oversheath of ordinary optic fibre and the leakage-gap between inner sheath and fibre core, has reduced the technical difficulty of sealing.
6. resistance to compression optical fiber hermetic seal switching box body of the present utility model is owing to adopt easy-to-mount socket seal box body form, be very easy to the hermetic seal switching of infrared optical fiber in the 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 hermetic seal interconnecting device body structure synoptic diagram of the present utility model;
Fig. 2 a is the encapsulating body front view in the utility model;
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 utility model is joined;
Fig. 4 is the bare fibre modular construction synoptic diagram in the utility model;
Fig. 5 a is the first fiber-optical socket plate front view in the utility model;
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 utility model;
Fig. 6 b is that the I-I of Fig. 5 a is to cut-open view;
Fig. 7 is the pillar construction synoptic diagram in the utility model.
Figure: 1. Filling colloid,,,, 2. Glue tube,,,,, 3. Bare fiber optic components,,,,, 4 first optical fiber socket board,,,,, 5. Fiber Optic Connector,, ,,, 6 first optical fiber protection tube,,,,, 7 first inner ring,,,,, 8. sealant baffle,,,,, 9 first optical fiber ferrules,,,,, 10 The first optical fiber positioning ring,,,,, 11 second optical fiber positioning ring,,,,, 12. uprights,,,,, 13. nuts,,,,, 14 second optical fiber socket board,,,, , 16 second optical fiber protection tube,,,,, 17 second inner ring,,,,, 18. pressure off,,,,, 19 second optical fiber ferrules,,,,, 20. seals, ,,,, 101. mounting flange,,,,, 102. sealing groove,,,,, 103. uprights connecting hole,,,,, 301. Fibre plugs,,,,, 302. bare Fiber,,, ,, 401. connector mounting holes,,,,, 402. through Hole,,,,, 1001. margins,,,,, 1002. positioning step,,,,, 1003. fiber positioning groove,,,,, 1004 . pressure pin slot,,,,, 1201. short thread,,,,, 1202, long thread.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Shown in Fig. 1～7, resistance to compression optical fiber hermetic seal switching box body of the present utility model 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 tube 6, the second fiber optic protection tube 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 tubes of structure; The described 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 at the first fiber-optical socket plate 4 with the second fiber-optical socket plate 14; Described bare fibre assembly passes the corresponding connection of the joints of optical fibre on encapsulating tube and the first fiber-optical socket plate 4, the second fiber-optical socket plate 14 respectively; Liquid sealant is injected in gradation in the described encapsulating tube, and liquid sealant fills up encapsulating tube 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 tube 6 and the second fiber optic protection tube 16 that is connected with encapsulating body 1 inside and outside both sides outer wall.
In the present embodiment, described encapsulating body 1 is provided with four identical encapsulating tubes of structure, and encapsulating tube 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 two Optical fiber plugs that are connected with the bare fibre two ends dorsad, 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, and is corresponding to the first fiber-optical socket plate and the second fiber-optical socket plate installation FC joints of optical fibre.
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 the described encapsulating tube 2; Described encapsulating tube 2 respectively its two ends close up to form near the port encapsulating tube first in encircle 17 in the ring 7 and second; The ring 17 outer first fiber orientation ring 10 and the second fiber orientation rings 11 of arranging respectively in the ring 7 and second in first, 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 tube 2 medial extremitys, be outside equipped with the pad of fixing seal glue baffle plate at fluid sealant baffle plate 8, specifically, the first fiber orientation ring, 10 outer faces are provided with several pad grooves exactly, pad one end is installed in the pad groove and by screw fixedlys connected with the first fiber orientation ring 10, and the other end is pushed down fluid sealant baffle plate 8 edge fixing seal glue baffle plates; The outside end face that is embedded in the second optical fiber pressure ring, 19, the second fiber orientation rings 11 at the second fiber orientation ring 11 is provided with the pad of fixing the second optical fiber pressure ring 19.In the present embodiment, the outside end face of the second fiber orientation ring 11 is provided with five pads of fixing the second optical fiber pressure ring 19, is outside equipped with the pad of five fixing seal glue baffle plates at fluid sealant baffle plate 8, and pad 18 is one of them.Each pad is installed in the pad groove, and pad groove 1004 is one of them
The first fiber orientation ring 10, the second fiber orientation ring 11 in the described encapsulating tube 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 the described first fiber orientation ring 10 fiber orientation ring end radially extension form not care about one's appearance 1001 and with encapsulating tube 2 first in the outer wall end face of ring 7 fixedly connected the other end of the small-bore section formation positioning step 1002 that inwardly closes up by screw; 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 ring 7 in first in encapsulating tube 2, ring 7 is isolated with encapsulating tube 2 inner spaces, with avoid the bare fibre assembly install and the encapsulating process in bare fibre wipe to hang with encapsulating tube inwall and damage.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, the described first fiber orientation ring 10 is provided with ten fiber orientation grooves, and fiber orientation groove 1003 is one of them.The described second fiber orientation ring 11 is identical with the structure of the first fiber orientation ring 10, and the outer wall end face of ring 17 is fixedlyed connected by screw in the second fiber orientation ring 11 and second.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 the 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 the 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 of disposing on the corresponding 40 cover bare fibre assemblies is used is provided with 40 connector mounting holes, and 40 joints of optical fibre are fixed on the connector mounting hole by screw respectively; The connector position of mounting hole 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 to be provided with four for the column connecting hole of column connection, column connecting hole 103 is one of them, the described first fiber-optical socket plate 4, be respectively arranged with four on the column connecting hole position of the second fiber-optical socket plate, 14 corresponding encapsulating body 1 both sides end faces for the through hole of column insertion, 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, and the long thread end of column passes the through hole of the first fiber-optical socket plate 4 or the second fiber-optical socket plate 14 respectively; 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 when 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 first fiber-optical socket plate 4 and the second fiber-optical socket plate 14 and the medial and lateral end face distance of encapsulating body 1 suitable so that the bare fibre assembly is installed 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 described first fiber optic protection tube 6 is the identical straight cylinder of structure with the second fiber optic protection tube 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 tube 6 is fixedlyed 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 tube 16.
The outer wall middle part of described encapsulating body 1 is provided with the mounting flange 101 that connects with corresponding high pressure vessel flange, the side that mounting flange cooperates with flange is provided with seal groove 102, 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 tube outboard end, and liquid sealant adopts shrinkage factor to be 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.
Present embodiment is identical with the basic structure of embodiment 1, difference is, described encapsulating body axis is provided with an encapsulating tube that runs through the encapsulating body, ten cover bare fibre assemblies are set, the bare fibre assembly passes encapsulating tube and the first fiber-optical socket plate and is connected with the joints of optical fibre on the second fiber-optical socket plate, liquid sealant seal isolation bare fibre assembly two ends are injected in gradation in the encapsulating tube, 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 hermetic seal 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 tube (6), the second fiber optic protection tube (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 tubes of structure; Be respectively arranged with several joints of optical fibre on the described 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 two Optical fiber plugs and one section bare fibre that is connected two Optical fiber plugs, and the bare fibre assembly passes the corresponding connection of the joints of optical fibre on encapsulating tube and the first fiber-optical socket plate (4), the second fiber-optical socket plate (14) respectively; Be perfused with liquid sealant in the described encapsulating tube, liquid sealant fills up encapsulating tube 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), the column of encapsulating body (1) both sides and bare fibre assembly are outside equipped with the first fiber optic protection tube (6) and the second fiber optic protection tube (16) that is connected with both sides, encapsulating inside and outside outer wall.
2. resistance to compression optical fiber hermetic seal according to claim 1 switching box body, it is characterized in that: described encapsulating tube 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 tube respectively its two ends close up to form near the port encapsulating tube first in encircle in the ring and second; The outer first fiber orientation ring and the second fiber orientation ring of being respectively arranged with of ring in the ring and second in first, 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 tube medial extremity, be outside equipped with several pads of fixing seal glue baffle plate at the fluid sealant baffle plate, pad is installed in the pad groove that arranges on the first fiber orientation ring outer face and by screw fixedlys connected with the first fiber orientation ring; Be embedded in the second optical fiber pressure ring at the second fiber orientation ring, the outside end face of the second fiber orientation ring is provided with several pads of fixing the second optical fiber pressure ring.
3. resistance to compression optical fiber hermetic seal according to claim 2 switching box body, it is characterized in that: the described 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 the described first fiber orientation ring fiber orientation ring end radially extension form not care about one's appearance and with the encapsulating tube first in encircle and be connected, 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 put in ring in first in the first encapsulating tube.
4. according to claim 2 or 3 described resistance to compression optical fiber hermetic seals switching box bodys, it is characterized in that: the described 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; The described second fiber orientation ring is identical with the basic structure of the first fiber orientation ring.
5. resistance to compression optical fiber hermetic seal according to claim 1 and 2 switching box body, it is characterized in that: the bare fibre at described bare fibre assembly two ends inside and outside the encapsulating tube 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.
6. resistance to compression optical fiber hermetic seal according to claim 1 switching box body, it is characterized in that: the described first fiber-optical socket plate (4), 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 on the connector mounting hole by screw.
7. resistance to compression optical fiber hermetic seal 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), the described 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) the both sides end face, the short thread end of column is screwed into encapsulating body (1) by the column connecting hole and is connected, and the long thread end of column passes the through hole of the first fiber-optical socket plate (4) and the second fiber-optical socket plate (14) respectively; Be respectively arranged with for the nut that clamps the first fiber-optical socket plate (4), the second fiber-optical socket plate (14) in the through hole both sides.
8. resistance to compression optical fiber hermetic seal 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 tube outboard end, and liquid sealant adopts shrinkage factor to be lower than 1% epoxy resin assembly adhesive.
9. resistance to compression optical fiber hermetic seal according to claim 2 switching box body, it is characterized in that: the described 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 hermetic seal according to claim 1 switching box body is characterized in that: the quantity of described encapsulating tube 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116312 CN203164473U (en) | 2013-03-15 | 2013-03-15 | Anti-compression optical fiber hermetic seal switching box body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320116312 CN203164473U (en) | 2013-03-15 | 2013-03-15 | Anti-compression optical fiber hermetic seal switching box body |
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| Publication Number | Publication Date |
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| CN203164473U true CN203164473U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320116312 Expired - Fee Related CN203164473U (en) | 2013-03-15 | 2013-03-15 | Anti-compression optical fiber hermetic seal switching box body |
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| Country | Link |
|---|---|
| CN (1) | CN203164473U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135178A (en) * | 2013-03-15 | 2013-06-05 | 中国工程物理研究院核物理与化学研究所 | Anti-compression optical fiber air-tight-seal interconnecting box body |
| CN105425345A (en) * | 2015-11-23 | 2016-03-23 | 中航光电科技股份有限公司 | Sealed optical fiber connector |
-
2013
- 2013-03-15 CN CN 201320116312 patent/CN203164473U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135178A (en) * | 2013-03-15 | 2013-06-05 | 中国工程物理研究院核物理与化学研究所 | Anti-compression optical fiber air-tight-seal interconnecting box body |
| CN105425345A (en) * | 2015-11-23 | 2016-03-23 | 中航光电科技股份有限公司 | Sealed optical fiber connector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20190315 |