CN113589459A - 5.0mm round cable optical fiber assembly and manufacturing method thereof - Google Patents
5.0mm round cable optical fiber assembly and manufacturing method thereof Download PDFInfo
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- CN113589459A CN113589459A CN202110859190.2A CN202110859190A CN113589459A CN 113589459 A CN113589459 A CN 113589459A CN 202110859190 A CN202110859190 A CN 202110859190A CN 113589459 A CN113589459 A CN 113589459A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4483—Injection or filling devices
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
- G02B6/4486—Protective covering
Abstract
The invention discloses a 5.0mm round cable optical fiber assembly and a manufacturing method thereof, wherein the optical fiber assembly comprises an optical cable main body and a connector which is prefabricated and connected to the end part of the optical cable main body and forms an optical signal transmission passage; the optical cable main body comprises an optical fiber and a protective layer arranged outside the optical fiber; the connector comprises a long tail handle inserting core and a white inner sleeve, the long tail handle inserting core is arranged inside the white inner sleeve, the optical cable main body is connected to the tail end of the white inner sleeve through a connecting piece, an optical fiber in the optical cable main body penetrates through and is connected to the inside of the long tail handle inserting core, and an outer sheath used for splicing is arranged outside the white inner sleeve. Most parts of the connector are nonstandard parts, and the optical cable and the connector have stronger rotation resistance and tensile resistance through the customization processes of thread riveting, glue dispensing and the like, and meanwhile, the optical cable has stronger water resistance, compression resistance, tensile resistance and the like, can bear long-time construction, resists tensile and pressure and provides an optical energy channel for FTTX in some special scenes.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to a 5.0mm round cable optical fiber component and a manufacturing method thereof.
Background
With the development of FTTX engineering, optical fiber cables have entered 86 faceplates on desks and walls of every family, so optical cable connectors for FTTX are indispensable, where the optical cable connectors are devices for connecting optical cable terminals and switches, and are channels for transmitting optical signals, simplifying the optical fiber splicing technology, improving the splicing quality, and playing a positive role in expanding the application field of optical fibers. In the construction process of the existing FTTX engineering, an optical cable connector is mainly assembled on site, namely, the optical cable connector is directly terminated by adopting a mechanical splicing or thermal welding method on the construction site, the connector can be widely applied to the occasions of rapidly terminating and interconnecting optical fibers or optical cables, has the same splicing performance as standard SC, LC and FC connectors, and is compatible with the standard SC, LC and FC connectors and sockets; however, the connector needs to be constructed on site by using a specific tool, is troublesome to carry and complex in process, has high requirements on the technical proficiency of constructors, and most importantly, the optical cable corresponding to the on-site finished optical cable connector has short relative total length, poor torsion resistance, bending resistance, tensile resistance and pressure resistance, is not suitable for the scene of overhead wiring, and has large limitation, so that an optical cable product which has better torsion resistance, bending resistance, tensile resistance and pressure resistance and can be led indoors by overhead wiring is urgently needed to be provided.
Disclosure of Invention
The invention aims to solve the technical problem of providing an optical cable assembly which has torsion resistance, bending resistance, tensile resistance and pressure resistance, can be used for overhead wiring and can be introduced indoors outdoors, and realizes the functions of introducing, wiring, plug and play and the like in a specific scene.
In order to solve the technical problem, the invention provides a 5.0mm round cable optical fiber component and a manufacturing method thereof;
a5.0 mm round cable optical fiber assembly comprises an optical cable main body, a connector which is prefabricated and connected to the end part of the optical cable main body and forms an optical signal transmission passage;
the optical cable main body comprises an optical fiber and a protective layer arranged outside the optical fiber;
the connector comprises a long tail handle inserting core and a white inner sleeve, the long tail handle inserting core is arranged inside the white inner sleeve, the optical cable main body is connected to the tail end of the white inner sleeve through a connecting piece, an optical fiber in the optical cable main body penetrates through and is connected to the inside of the long tail handle inserting core, and an outer sheath used for splicing is arranged outside the white inner sleeve.
As a further improvement of the invention, the protective layer comprises a tight sleeve layer, an inner protective layer, a reinforcing layer and an outer protective layer which are sequentially arranged outside the optical fiber from inside to outside, and an ointment layer is arranged between the tight sleeve layer and the inner protective layer.
As a further improvement of the invention, the reinforcing layer is made of water-blocking aramid fiber.
As a further improvement of the invention, the connecting end of the optical cable main body is stripped to form a step-shaped optical fiber section, a tight sleeve section and a sub-cable section, a reinforcing layer with a specified length is reserved after stripping to serve as a clamping section, the optical fiber section is a bare optical fiber, the tight sleeve section comprises an optical fiber and a tight sleeve layer from inside to outside, and the sub-cable section comprises an optical fiber, a tight sleeve layer, an oil paste layer and an inner protective layer from inside to outside.
As a further improvement of the invention, the white inner sleeve is internally provided with a mounting part for mounting the long tail handle insertion core, and the mounting part is provided with a circular step hole which penetrates through the white inner sleeve along the axial direction.
As a further improvement of the invention, the long-tail handle insertion core is of a rotary body structure and comprises an insertion core body at the front end, a positioning part at the middle section and a connecting handle at the tail end, an insertion core hole penetrating along the axis of the insertion core body is formed in the insertion core body, a tight sleeve hole penetrating along the axis of the connecting handle is formed in the connecting handle, the insertion core hole and the tight sleeve hole are coaxially communicated through a connecting hole in the positioning part, and a plurality of positioning notches are formed in the outer edge of the positioning part.
As a further improvement of the invention, the connector is cylindrical, the outer end of the connector is inserted into the white inner sleeve along the inner end of the white inner sleeve, the outer surface of the connector is provided with a plurality of positioning convex strips, the positioning convex strips correspondingly extend into and are positioned in glue dispensing holes arranged on the white inner sleeve in a matching manner, the glue adhered between the white inner sleeve and the connector is filled in the glue dispensing holes, one side of each positioning convex strip is provided with an inverted inclined surface for guiding installation, and the outer circumferential surface of the inner end of the connector is provided with a plurality of circles of annular positioning grooves which are parallel to each other.
As a further improvement of the invention, the ferrule body of the long-tail handle ferrule penetrates through the mounting part of the white inner sleeve and extends outwards, the part of the ferrule body extending outwards is sleeved with a dustproof cap matched with the ferrule body, the positioning part of the long-tail handle ferrule is matched and mounted in the stepped hole and is axially pressed on the stepped hole through a spring, the side wall of the stepped hole is provided with a positioning block matched and correspondingly extending into the positioning notch, and the other end of the spring is supported on a stepped surface arranged on the inner wall of the connecting body.
As a further improvement of the invention, the connecting end of the optical cable body is connected with the connecting body through a crimping pipe which is sleeved outside the connecting end and the connecting body, the outside of the crimping pipe is provided with a heat shrink pipe which is wrapped between the crimping pipe and the optical cable body, one end of the crimping pipe is compressed and connected with the corresponding optical cable body through screw thread riveting, the other end of the crimping pipe deforms the pipe body through screw thread riveting and extends inwards to the corresponding positioning groove on the connecting body to form axial positioning, the optical cable body is reserved in a stripping layer as a reinforcing layer of a clamping section and is clamped between the connecting body and the crimping pipe, the optical fiber section of the connecting end of the optical cable body is inserted into the ferrule hole of the long tail handle ferrule in a matching way and is fixed in the ferrule hole in an adhering way, the tight sleeve section of the connecting end of the optical cable body is inserted into the tight sleeve hole of the long tail handle ferrule in a matching way and is fixed in the tight sleeve hole in an adhering way, the sub-cable section of the optical cable body connecting end is inserted into the rubber guide tube in a matching mode, the other end of the rubber guide tube is coaxially sleeved and fixedly bonded on the outer portion of the connecting handle, and a distance for redundant movement of the long tail handle inserting core is preset between the end face of the sub-cable section and the end face of the connecting handle.
A method for making a 5.0mm round cable optical fiber assembly as described above, comprising the steps of:
stripping a connecting end of an optical cable main body to form a step-shaped optical fiber section, a tight sleeve section and a sub-cable section, and reserving a reinforcing layer with a specified length as a clamping section after stripping;
inserting the long tail handle inserting core on the installing part of the white inner sleeve correspondingly, sleeving the spring on the outer part of the connecting handle at the tail part of the long tail handle inserting core, extending the corresponding end of the connecting piece into the white inner sleeve and positioning the connecting piece, supporting the spring between the positioning part of the long tail handle inserting core and the connecting piece, sleeving the rubber guide pipe on the connecting handle of the long tail handle inserting core and bonding and fixing the long tail handle inserting core and the connecting handle through glue;
thirdly, the heat-shrinkable tube and the crimping tube are all sleeved outside the optical cable body, glue is injected into the through hole inside the long tail handle inserting core, the optical fiber section of the optical cable body and the tight sleeve section are inserted into the inside of the long tail handle inserting core, the optical fiber section is bonded in the optical fiber hole through the glue, the tight sleeve section is bonded in the tight sleeve hole through the glue, the sub-cable section of the optical cable body is matched and inserted into the glue guide tube, and the distance for redundant activity of the long tail handle inserting core is preset between the end face of the sub-cable section and the end face of the connecting handle.
Sliding the crimping pipe to the joint of the connecting piece and the optical cable body, pressing and connecting one end of the crimping pipe to the corresponding optical cable body through screw riveting, deforming the body of the crimping pipe through screw riveting at the other end of the crimping pipe, extending the body inwards to the corresponding positioning groove on the connecting body and forming axial positioning, and clamping the reinforcing layer reserved as a clamping section in the stripping layer of the optical cable body between the connecting body and the crimping pipe;
sliding the heat-shrinkable tube to the joint of the crimping tube and the optical cable body, wrapping the heat-shrinkable tube outside the crimping tube and the optical cable body by heating, then injecting glue into the glue dispensing hole of the white inner sleeve to fix the white inner sleeve and the connecting piece together through the solidified glue, finally installing the outer sheath outside the white inner sleeve, and sleeving the dustproof cap on the ferrule body of the long-tail-handle ferrule, thus completing the manufacture.
The invention has the beneficial effects that:
the invention relates to a 5.0mm round cable optical fiber assembly and a manufacturing method thereof, and the optical fiber assembly comprises an optical fiber main body, wherein an oil paste layer is arranged between a tight sleeve layer and an inner protection layer of the optical fiber main body, oil is filled to enable the structure of the optical fiber main body to be more stable, the optical fiber has more allowance space inside, and a reinforcing layer can ensure that the optical fiber main body has good tensile and flattening capabilities and also has certain waterproof capability; secondly, the optical cable main body and the connector are riveted through a crimping pipe, the assembly can bear larger traction force and torsional force in the construction process, and the pulling-out force between the connector and the optical cable main body is ensured; moreover, a rubber guide tube is arranged between the long tail handle inserting core and the sub-cable section of the optical cable main body, and the arrangement of the rubber guide tube ensures that optical fibers are redundantly moved in the optical fiber main body and cannot be ejected out of a moving space to cause fiber breakage; finally, the optical cable main body and the connector are prefabricated integrally, so that the mechanical environmental performance of the main cable is perfectly inherited, and reliable optical energy transmission is provided; in a word, most parts of the connector are nonstandard parts, the optical cable and the connector have stronger rotation resistance and tensile resistance through customizing processes such as thread riveting, dispensing and the like, meanwhile, the optical cable has stronger water resistance, compression resistance, tensile resistance and the like, and the manufactured optical fiber assembly is mainly applied to scenes such as overhead scenes, indoor introduction and the like, can bear long-time construction, resists tensile and pressure and provides an optical energy channel for FTTX (fiber to the x) in some special scenes.
Drawings
FIG. 1 is a schematic perspective view of a 5.0mm round cable optical fiber assembly;
FIG. 2 is an axial cross-sectional view of a 5.0mm round cable fiber optic assembly;
FIG. 3 is an enlarged view of A in FIG. 2;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 2;
FIG. 6 is a schematic perspective view of a long tail handle ferrule;
FIG. 7 is an axial cross-sectional view of the shank insert;
FIG. 8 is a perspective view of the connector;
FIG. 9 is a schematic perspective view of the white inner sleeve;
FIG. 10 is a perspective axial cross-sectional view of the inner sleeve;
FIG. 11 is an axial cross-sectional view of the main body of the cable (the connectorized end has been stripped in sections);
FIG. 12 is a cross-sectional view taken along line D-D of FIG. 11;
the reference numbers in the figures illustrate:
11. a connector; 12. a cable main body; 13. an optical fiber; 14. a tight-fitting layer; 15. an ointment layer; 16. an inner protective layer; 17. a reinforcing layer; 18. an outer jacket; 19. an optical fiber section; 20. a tight sleeving section; 21. a sub-cable segment; 221. a clamping section; 22. a long tail handle is inserted into the core; 23. the ferrule body; 24. a positioning part; 25. a connecting handle; 26. a plug hole; 27. connecting holes; 28. tightly sleeving the hole; 29. positioning the notch; 30. a white inner sleeve; 31. an installation part; 32. a stepped bore; 33. dispensing holes; 34. positioning blocks; 35. a spring; 36. a connecting member; 37. positioning the convex strip; 38. chamfering; 39. positioning a groove; 40. an outer sheath; 41. a dust cap; 42. crimping the tube; 43. heat shrink tubing; 44. a rubber guide tube.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
First embodiment, referring to fig. 1 to 12, the present invention is a round cable optical fiber 13 assembly including a cable main body 12, a connector 11 prefabricated and connected to an end of the cable main body 12 and forming an optical signal transmission path; the connector 11 of the invention adopts non-standard SC/APC part model and special technology to make into a standard SC/APC connector 11, compatible with SC standard adapter;
the optical cable main body 12 comprises an optical fiber 13 and a protective layer arranged outside the optical fiber 13; the connector 11 comprises a long-tail-handle insertion core 22 and a white inner sleeve 30, the long-tail-handle insertion core 22 is arranged inside the white inner sleeve 30, the optical cable main body 12 is connected to the tail end of the white inner sleeve 30 through a connecting piece 36, the total length of the connecting piece 36 in the embodiment is 20mm, the optical fiber 13 in the optical cable main body 12 penetrates through and is connected inside the long-tail-handle insertion core 22, an outer sheath 40 used for splicing is arranged outside the white inner sleeve 30, and the long-tail-handle insertion core 22, the white inner sleeve 30 and the outer sheath 40 in the embodiment are all standard pieces.
The protective layer includes from inside to outside sets gradually tight jacket layer 14, interior sheath 16, enhancement layer 17 and the outer jacket 18 outside optic fibre 13, be equipped with grease layer 15 between tight jacket layer 14 and the interior sheath 16. The ointment layer 15 enables the structure of the optical cable main body 12 to be more stable, and the optical fiber 13 has more allowance space inside;
in a specific embodiment of the present invention, the reinforcing layer 17 is made of water-blocking aramid fiber. The reinforcing layer can ensure that the optical cable main body 12 has good tensile flattening capability and certain waterproof capability.
The connecting end of the optical cable main body 12 forms a step-shaped optical fiber section 19, a tight sleeve section 20 and a sub-cable section 21 after stripping, a reinforcing layer 17 with a specified length is reserved after stripping to serve as a clamping section 221, the optical fiber section 19 is the bare optical fiber 13, the tight sleeve section 20 comprises the optical fiber 13 and the tight sleeve layer 14 from inside to outside, and the sub-cable section 21 comprises the optical fiber 13, the tight sleeve layer 14, an ointment layer 15 and an inner protective layer 16 from inside to outside.
The white inner sleeve 30 is internally provided with a mounting part 31 for mounting the long tail handle insertion core 22, and the mounting part 31 is provided with a circular step hole 32 which is axially communicated along the white inner sleeve 30.
The long-tail handle ferrule 22 is of a rotary structure and comprises a ferrule body 23 at the front end, a positioning part 24 at the middle section and a connecting handle 25 at the tail end, a ferrule hole 26 penetrating along the axis of the ferrule body 23 is formed in the ferrule body 23, a tight sleeve hole 28 penetrating along the axis of the connecting handle 25 is formed in the connecting handle 25, the ferrule hole 26 and the tight sleeve hole 28 are coaxially communicated through a connecting hole 27 in the positioning part 24, and a plurality of positioning notches 29 are formed in the outer edge of the positioning part 24.
The connector is cylindric, it is inside that the inner end of white endotheca 30 is inserted along the outer end of connector, the surface of connector is equipped with a plurality of location sand grips 37, location sand grip 37 corresponds the matching and stretches into and fixes a position in the point gluey hole 33 that sets up on white endotheca 30, and the point gluey downthehole 33 intussuseption is filled with the glue that bonds between white endotheca 30 and connector, bonds through glue and then guarantees to combine more firmly between white endotheca 30 and the connector, prevents to rotate easily to damage connector 11, and all glues that are used for bonding fixed in this embodiment are 353ND glue, one side of location sand grip 37 is equipped with the chamfer 38 that is used for the direction installation, be equipped with many rings of ring form constant head tank 39 that are parallel to each other on the outer periphery of connector inner end.
The ferrule body 23 of the long-tail-handle ferrule 22 penetrates through the mounting part 31 of the white inner sleeve 30 and extends outwards, the part of the ferrule body 23 extending outwards is sleeved with a dustproof cap 41 matched with the ferrule body, the positioning part 24 of the long-tail-handle ferrule 22 is installed in the stepped hole 32 in a matched mode and is axially pressed on the stepped hole 32 through a spring 35, a positioning block 34 which correspondingly extends into the positioning notch 29 in a matched mode is arranged on the side wall of the stepped hole 32, and the other end of the spring 35 is supported on a stepped surface arranged on the inner wall of the connecting body.
The connecting end of the optical cable body is connected with the connecting body through a crimping pipe 42 which is sleeved outside the connecting end and the connecting body, a heat shrinkable pipe 43 which is wrapped between the crimping pipe 42 and the optical cable body is arranged outside the crimping pipe 42, the heat shrinkable pipe 43 is used as a tail sleeve to ensure the appearance of a product, one end of the crimping pipe 42 is pressed and connected with the corresponding optical cable body through screw thread riveting, the other end of the crimping pipe 42 deforms the pipe body through screw thread riveting and extends inwards to a corresponding positioning groove 39 on the connecting body to form axial positioning, a reinforcing layer 17 which is reserved in a stripping layer as a clamping section 221 of the optical cable body is clamped between the connecting body and the crimping pipe 42 to ensure the tensile resistance between the optical cable main body 12 and the connector 11, an optical fiber section 19 of the connecting end of the optical cable body is inserted into the inserting core hole 26 of the long tail handle inserting core 22 in a matching way, and the optical fiber section 19 is fixedly bonded in the inserting core hole 26, the tight sleeve section 20 of the optical cable body connecting end is inserted into the tight sleeve hole 28 of the long tail handle insertion core 22 in a matching mode, the tight sleeve section 20 is fixedly adhered in the tight sleeve hole 28, the sub-cable section 21 of the optical cable body connecting end is inserted into the rubber guide tube 44 in a matching mode, in the embodiment, the rubber guide tube 44 is a plastic sleeve with the inner diameter of 2.1mm and the wall thickness of 0.2mm, the optical fiber 13 is guaranteed to move redundantly in the inner portion without being pushed out of an activity space to cause fiber breakage due to the fact that the rubber guide tube 44 is arranged, the other end of the rubber guide tube 44 is coaxially sleeved and adhered and fixed on the outer portion of the connecting handle 25, and a distance for redundant movement of the long tail handle insertion core 22 is preset between the end face of the sub-cable section 21 and the end face of the connecting handle 25.
Embodiment two, referring to fig. 1-12, a method for making a round cable optical fiber 13 assembly as described in embodiment one above, the method comprising the steps of:
firstly, stripping the connecting end of the optical cable main body 12 to form a step-shaped optical fiber section 19, a tight sleeve section 20 and a sub-cable section 21, and reserving a reinforcing layer 17 with a specified length as a clamping section 221 after stripping;
correspondingly inserting the long tail handle insertion core 22 on the mounting part 31 of the white inner sleeve 30, sleeving the spring 35 outside the tail connecting handle 25 of the long tail handle insertion core 22, extending the corresponding end of the connecting piece 36 into the white inner sleeve 30 and positioning the connecting piece 36 inside, supporting the spring 35 between the positioning part 24 of the long tail handle insertion core 22 and the connecting piece 36, sleeving the rubber guide pipe 44 on the connecting handle 25 of the long tail handle insertion core 22 and bonding and fixing the connecting handle 25 and the connecting handle by glue;
thirdly, the heat shrinkable tube 43 and the crimping tube 42 are sleeved outside the optical cable body, glue is injected into a through hole inside the long tail handle insertion core 22, the optical fiber section 19 and the tight sleeve section 20 of the optical cable body are inserted into the long tail handle insertion core 22, the optical fiber section 19 is bonded in the optical fiber 13 hole through the glue, the tight sleeve section 20 is bonded in the tight sleeve hole 28 through the glue, the sub-cable section 21 of the optical cable body is matched and inserted into the rubber guide tube 44, and a distance for redundant activity of the long tail handle insertion core 22 is preset between the end face of the sub-cable section 21 and the end face of the connecting handle 25.
Sliding the crimping pipe 42 to the joint of the connecting piece 36 and the optical cable body, wherein one end of the crimping pipe 42 is pressed and connected to the corresponding optical cable body through screw riveting, the other end of the crimping pipe 42 deforms the body through screw riveting and extends inwards to the corresponding positioning groove 39 on the connecting body to form axial positioning, and the reinforcing layer 17 reserved in the stripping layer as the clamping section 221 of the optical cable body is clamped between the connecting body and the crimping pipe 42;
sliding the heat-shrinkable tube 43 to the joint of the crimping tube 42 and the optical cable body, wrapping the heat-shrinkable tube 43 outside the crimping tube 42 and the optical cable body by heating, injecting glue into the glue dispensing hole 33 of the white inner sleeve 30 to fix the white inner sleeve 30 and the connecting piece 36 together by the solidified glue, finally installing the outer sheath 40 outside the white inner sleeve 30, and sleeving the dustproof cap 41 on the ferrule body 23 of the long-tail-handle ferrule 22 to complete the manufacturing. The characteristics of various aspects of a 5.0mm round cable optical fiber assembly of the present invention are further illustrated by the relevant test parameters below:
component performance index technical parameter table
Mechanical and environmental performance technical parameter table of component connector
The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.
Claims (10)
1. A5.0 mm round cable optical fiber assembly is characterized by comprising an optical cable main body, a connector which is prefabricated and connected to the end part of the optical cable main body and forms an optical signal transmission passage;
the optical cable main body comprises an optical fiber and a protective layer arranged outside the optical fiber;
the connector comprises a long tail handle inserting core and a white inner sleeve, the long tail handle inserting core is arranged inside the white inner sleeve, the optical cable main body is connected to the tail end of the white inner sleeve through a connecting piece, an optical fiber in the optical cable main body penetrates through and is connected to the inside of the long tail handle inserting core, and an outer sheath used for splicing is arranged outside the white inner sleeve.
2. The 5.0mm round cable optical fiber assembly of claim 1, wherein the protective layer comprises a tight sleeve layer, an inner protective layer, a reinforcing layer and an outer protective layer which are arranged outside the optical fiber from inside to outside in sequence, and an oil paste layer is arranged between the tight sleeve layer and the inner protective layer.
3. A 5.0mm round cable optical fiber assembly according to claim 2, wherein the reinforcing layer is made of water-blocking aramid.
4. The 5.0mm round cable optical fiber assembly as claimed in claim 3, wherein the connecting end of the optical cable main body is stripped to form a stepped optical fiber section, a tight-buffered section and a sub-cable section, and a reinforcing layer with a specified length is reserved as a clamping section after stripping, the optical fiber section is a bare optical fiber, the tight-buffered section comprises an optical fiber from inside to outside and a tight-buffered layer, and the sub-cable section comprises an optical fiber from inside to outside, a tight-buffered layer, an ointment layer and an inner protection layer.
5. The 5.0mm round cable optical fiber assembly of claim 4, wherein the white inner sleeve is provided with a mounting portion for mounting the long tail stem insert core therein, and the mounting portion is provided with a circular step hole axially penetrating along the white inner sleeve.
6. The 5.0mm round cable optical fiber assembly of claim 5, wherein the long tail handle ferrule is of a revolving body structure and comprises a ferrule body at the front end, a positioning portion at the middle section and a connecting handle at the tail end, a ferrule hole penetrating along the axis of the ferrule body is formed inside the ferrule body, a tight sleeve hole penetrating along the axis of the connecting handle is formed inside the connecting handle, the ferrule hole and the tight sleeve hole are coaxially communicated through a connecting hole in the positioning portion, and a plurality of positioning notches are formed in the outer edge of the positioning portion.
7. The 5.0mm round cable optical fiber assembly of claim 6, wherein the connector is cylindrical, the outer end of the connector is inserted into the white inner sleeve along the inner end thereof, the outer surface of the connector is provided with a plurality of positioning ribs, the positioning ribs correspondingly and fittingly extend into and are positioned in glue dispensing holes formed in the white inner sleeve, the glue dispensing holes are filled with glue adhered between the white inner sleeve and the connector, one side of the positioning ribs is provided with an inverted slope for guiding installation, and the outer circumferential surface of the inner end of the connector is provided with a plurality of circles of annular positioning grooves which are parallel to each other.
8. The 5.0mm round cable optical fiber assembly of claim 7, wherein the ferrule body of the long-tail stem ferrule extends through the mounting portion of the white inner sleeve and extends outward, the outward extending portion of the ferrule body is sleeved with a matching dust cap, the positioning portion of the long-tail stem ferrule is mounted in the stepped hole in a matching manner and is axially pressed against the stepped hole through a spring, a positioning block is disposed on a side wall of the stepped hole and correspondingly extends into the positioning notch in a matching manner, and the other end of the spring is supported on a stepped surface disposed on the inner wall of the connector.
9. The 5.0mm round cable optical fiber assembly of claim 8, wherein the connecting end of the optical cable body is connected with the connecting body through a crimping pipe which is sleeved outside the connecting end and the connecting body, and the exterior of the crimping pipe is provided with a heat shrink tube wrapped between the crimping pipe and the optical cable body, one end of the crimping pipe is pressed and connected with the corresponding optical cable body through screw riveting, the other end of the crimping pipe deforms the pipe body through screw riveting and extends inwards to the corresponding positioning groove on the connecting body to form axial positioning, and the optical cable body is reserved in the stripping layer as a reinforcing layer of a clamping section and clamped between the connecting body and the crimping pipe, the optical fiber section of the connecting end of the optical cable body is inserted into the insertion hole of the long tail handle insertion core in a matching way and is fixed in the insertion hole, the tight sleeve section of the connecting end of the optical cable body is inserted into the tight sleeve hole of the long tail handle insertion core in a matching way and is fixed in the tight sleeve hole in a bonding way, the sub-cable section of the optical cable body connecting end is inserted into the rubber guide tube in a matching mode, the other end of the rubber guide tube is coaxially sleeved and fixedly bonded on the outer portion of the connecting handle, and a distance for redundant movement of the long tail handle inserting core is preset between the end face of the sub-cable section and the end face of the connecting handle.
10. A method for making a 5.0mm round cable optical fiber assembly of claim 9, comprising the steps of:
stripping a connecting end of an optical cable main body to form a step-shaped optical fiber section, a tight sleeve section and a sub-cable section, and reserving a reinforcing layer with a specified length as a clamping section after stripping;
inserting the long tail handle inserting core on the installing part of the white inner sleeve correspondingly, sleeving the spring on the outer part of the connecting handle at the tail part of the long tail handle inserting core, extending the corresponding end of the connecting piece into the white inner sleeve and positioning the connecting piece, supporting the spring between the positioning part of the long tail handle inserting core and the connecting piece, sleeving the rubber guide pipe on the connecting handle of the long tail handle inserting core and bonding and fixing the long tail handle inserting core and the connecting handle through glue;
thirdly, the heat-shrinkable tube and the crimping tube are all sleeved outside the optical cable body, glue is injected into the through hole inside the long tail handle inserting core, the optical fiber section of the optical cable body and the tight sleeve section are inserted into the inside of the long tail handle inserting core, the optical fiber section is bonded in the optical fiber hole through the glue, the tight sleeve section is bonded in the tight sleeve hole through the glue, the sub-cable section of the optical cable body is matched and inserted into the glue guide tube, and the distance for redundant activity of the long tail handle inserting core is preset between the end face of the sub-cable section and the end face of the connecting handle.
Sliding the crimping pipe to the joint of the connecting piece and the optical cable body, pressing and connecting one end of the crimping pipe to the corresponding optical cable body through screw riveting, deforming the body of the crimping pipe through screw riveting at the other end of the crimping pipe, extending the body inwards to the corresponding positioning groove on the connecting body and forming axial positioning, and clamping the reinforcing layer reserved as a clamping section in the stripping layer of the optical cable body between the connecting body and the crimping pipe;
sliding the heat-shrinkable tube to the joint of the crimping tube and the optical cable body, wrapping the heat-shrinkable tube outside the crimping tube and the optical cable body by heating, then injecting glue into the glue dispensing hole of the white inner sleeve to fix the white inner sleeve and the connecting piece together through the solidified glue, finally installing the outer sheath outside the white inner sleeve, and sleeving the dustproof cap on the ferrule body of the long-tail-handle ferrule, thus completing the manufacture.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859250A (en) * | 2021-01-14 | 2021-05-28 | 深圳市恒捷光通讯技术有限公司 | Method for mounting armored optical fiber, ferrule tail handle and connector |
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Effective date of registration: 20220825 Address after: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Applicant after: HENGTONG OPTIC-ELECTRIC Co.,Ltd. Address before: 215200 No. 168 Jiaotong North Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Applicant before: JIANGSU HENGTONG OPTICAL NETWORK TECHNOLOGY Co.,Ltd. Applicant before: HENGTONG OPTIC-ELECTRIC Co.,Ltd. |