CN115437080B - Optical cable node connecting device - Google Patents
Optical cable node connecting device Download PDFInfo
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- CN115437080B CN115437080B CN202211223159.0A CN202211223159A CN115437080B CN 115437080 B CN115437080 B CN 115437080B CN 202211223159 A CN202211223159 A CN 202211223159A CN 115437080 B CN115437080 B CN 115437080B
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- waterproof
- dustproof
- connector
- head end
- optical fiber
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Classifications
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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
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- 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
- G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
-
- 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
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The application discloses an optical cable node connecting device which comprises a dustproof and waterproof box and a standard optical fiber connector, wherein the standard optical fiber connector is arranged in the dustproof and waterproof box, the end part of an optical cable to be connected is connected with the dustproof and waterproof optical fiber connector in advance, a plurality of mounting holes are formed in the box wall of the dustproof and waterproof box, each mounting hole is internally provided with a matched adapter, an interface of the matched adapter facing the inside of the dustproof and waterproof box can be connected with the standard optical fiber connector, an interface of the matched adapter facing the outside of the dustproof and waterproof box can be quickly connected with the dustproof and waterproof optical fiber connector, and an optical signal transmission path is formed after the optical cable to be connected with the dustproof and waterproof optical fiber connector, the matched adapter and the standard optical fiber connector are connected. According to the application, all nodes are pre-provided with the dustproof and waterproof box with the special matched adapter, and the dustproof and waterproof box can be quickly deployed by plug and play on a construction site, so that the construction efficiency is improved, the construction cost is saved, the construction quality is improved, and meanwhile, the later maintenance is convenient.
Description
Technical Field
The application belongs to the technical field of optical cables, and particularly relates to an optical cable node connecting device.
Background
The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Fiber To The Home (FTTH) is a transmission method for optical fiber communication. In particular, FTTH refers to installing an Optical Network Unit (ONU) at a home subscriber or an enterprise subscriber. Similar to the "hand-over distribution" of communications all-plastic telephone cables, fiber-to-the-home (FTTH) Optical Distribution Networks (ODNs) are divided into a trunk cable subsystem, a distribution cable subsystem, and a drop cable termination subsystem. The trunk optical cable subsystem refers to an optical cable distribution system connected between the subscriber optical cable cross-connect boxes from the office optical distribution rack ODF connected to the optical fiber access device OLT. In the optical fiber distribution equipment at the two ends, the optical cables are formed into ends in a hot melting mode, and the optical cables are in jumper connection with each other through optical cable tail fibers. The distribution cable subsystem refers to the fiber optic cable from the optical distribution box to the "fiber drop box" within the customer's building. This is an optical distribution panel where the input and output cables are directly connected "back-to-back", typically with the splitter equipment also disposed therein. The optical splitter is an optical fiber multiplexing device for multiplexing channels of a core optical cable into multiple channels, and the general branching ratio is 1:16;1:32 and 1: 64. The optical splitters (OBD) can be considered to be of different types according to the placed positions, and mainly comprise a box type fiber-out optical splitter, a tray type optical splitter and a plug-in type end-forming optical splitter; the types of the optical cable tail fiber plugs are SC-type square-head optical fiber plugs.
In the prior art, the beam splitter is generally installed in a tapping box, and the tapping box generally has the functions of dust prevention and water prevention. Before the optical cable is welded with the optical cable tail fiber, the tapping box needs to be opened, the optical cable is sent into the tapping box from the central hole at the bottom of the tapping box to be welded, and after the optical cable is welded with the optical cable tail fiber, the tapping box needs to be closed. The following problems exist in actual welding: firstly, for construction convenience, some constructors omit the step of feeding the optical cable into the tapping box from the central hole at the bottom of the tapping box, so that the tapping box cannot be closed after welding, and even if the problems are not caused, the tapping box cannot be closed because of more wire harnesses in the tapping box and more disorder; secondly, because different constructors carry out welding operation at different time periods, the problems of accidental breaking of the previously welded optical cable and the like are likely to be caused; thirdly, during later maintenance, the wire bundles in the tapping box are scattered, and a one-knife cutting mode is generally adopted to cut off the wire bundles; fourth, the welding/quick-connection has a certain technical content and time investment, and the overall performance varies from person to person, so that the construction cost is high, the efficiency is low, and the maintenance difficulty is high. How to solve the technical problems is a technical problem to be solved in the field.
Disclosure of Invention
Therefore, the technical problem to be solved by the application is to provide the optical cable node connecting device which reduces the construction cost and the construction time, improves the performance and the protection of the pup joint and is more convenient for the later link maintenance.
In order to solve the technical problems, the application provides an optical cable node connecting device which comprises a dustproof and waterproof box and a standard optical fiber connector, wherein the standard optical fiber connector is arranged in the dustproof and waterproof box, the end part of an optical cable to be connected is connected with the dustproof and waterproof optical fiber connector in advance, a plurality of mounting holes are formed in the box wall of the dustproof and waterproof box, a matched adapter is arranged in each mounting hole, an interface of the matched adapter facing the inside of the dustproof and waterproof box can be connected with the standard optical fiber connector, an interface of the matched adapter facing the outside of the dustproof and waterproof box can be quickly connected with the dustproof and waterproof optical fiber connector, and an optical signal transmission path is formed after the optical cable to be connected, the dustproof and waterproof optical fiber connector, the matched adapter and the standard optical fiber connector are connected.
In one embodiment of the application, the dustproof and waterproof optical fiber connector comprises a connector main body, a first waterproof ring, an inner core, a middle sleeve, a first spring, a stop ring, an insertion core, a second spring, a bottom cover, a second waterproof ring and a tail sleeve;
the connector body, the first waterproof ring, the inner core, the middle sleeve, the first spring, the stop ring, the ferrule, the second spring, the bottom cover, the second waterproof ring and the tail sleeve are respectively provided with a head end which is consistent with the direction of the free end of the optical cable to be connected, a tail end which is opposite to the direction of the free end of the optical cable to be connected and a central hole for the optical cable to be connected to pass through;
the connector body is provided with an annular inner cavity which penetrates through the head end of the connector body and is arranged around the central hole of the connector body;
the first waterproof ring is arranged at the bottom of the annular inner cavity;
the tail end of the inner core stretches into the annular inner cavity, the first waterproof ring is pressed on the cavity bottom of the annular inner cavity by the tail end of the inner core, the tail end of the inner core is fixedly connected with the connector main body, and the head end of the inner core is an elastically deformable clamping lug;
the tail end of the middle sleeve can be connected to the outer side of the head end of the connector main body, the middle sleeve can slide relative to the connector main body, the head end of the middle sleeve cannot be separated from the connector main body, the head end of the middle sleeve is a convex piece, when the middle sleeve slides towards the direction of the head end of the middle sleeve, the convex piece contacts with the clamping lug and limits the deformation of the clamping lug, and when the middle sleeve slides towards the direction of the tail end of the middle sleeve, the convex piece is separated from the clamping lug and allows the deformation of the clamping lug;
the elastic restoring force of the first spring drives the middle sleeve to slide towards the direction of the head end of the middle sleeve;
the head end of the stop ring is limited outside the head end of the connector main body and is positioned in the central hole of the inner core, the tail end of the stop ring stretches into the central hole of the connector main body, and the outer protective layer, the reinforcing piece and the buffer layer of the optical cable to be connected are compressed between the tail end of the stop ring and the inner wall of the central hole of the connector main body;
the head end of the ferrule is positioned outside the head end of the inner core, the tail end of the ferrule extends into the central hole of the stop ring, the ferrule can slide relative to the inner core and the stop ring, the ferrule cannot be separated from the inner core and the stop ring, and an optical fiber of an optical cable to be connected extends into the central hole of the ferrule from the tail end of the ferrule;
the elastic restoring force of the second spring drives the lock pin to slide towards the direction of the head end of the lock pin;
the head end of the bottom cover is fixedly connected to the outer side of the tail end of the connector main body;
the tail end of the second waterproof ring is arranged between the tail end of the bottom cover and the outer protective layer of the optical cable to be connected, and the head end of the second waterproof ring is pressed between the tail end of the connector main body and the outer protective layer of the optical cable to be connected;
the tail end of the tail sleeve is tightly attached to the outer protective layer of the optical cable to be connected, and the head end of the tail sleeve is fixedly connected to the outer side of the tail end of the bottom cover.
In one embodiment of the application, the outer side wall of the tail end of the inner core is in threaded connection with the connector main body, the bottom cover is in threaded connection with the connector main body, and the tail sleeve is in concave-convex fit clamping connection with the bottom cover.
In one embodiment of the application, a snap spring groove is arranged on the outer side of the head end of the connector body, a snap spring is arranged in the snap spring groove, and the snap spring limits the middle sleeve to be separated from the connector body.
In one embodiment of the application, a convex key is arranged at the middle section of the insert core along the circumferential interval distance, the convex key limits the insert core to be separated from the inner core and the stop ring, and one convex key is provided with a mark for positioning foolproof.
In one embodiment of the present application, the tail end of the connector body is provided with a plurality of cuts sequentially arranged along the circumferential direction thereof, the cuts extend to the tail end of the connector body along the direction of the generatrix of the central hole of the connector body, and the tail end of the connector body extends between the tail end of the bottom cover and the tail end of the second waterproof ring.
In one embodiment of the present application, the middle section of the connector body and the outer side of the head end of the bottom cover are both provided with vertical grain structures.
In one embodiment of the present application, the dustproof and waterproof optical fiber connector further includes a dustproof plug, in a non-working state, the dustproof plug seals the head end of the ferrule, a first annular groove is further provided on the outer side of the tail end of the bottom cover, a first sealing ring is provided in the first annular groove, the first sealing ring is sealed between the head end of the bottom cover and the head end of the tail sleeve, and the first sealing ring is connected with the dustproof plug through a string.
In one embodiment of the application, the mating adapter comprises an adapter body, a third waterproof ring, a ceramic tube, a standard fiber optic adapter interface, and a nut,
the adapter body comprises a first joint part and a second joint part, wherein the first joint part is provided with a first accommodating hole, the second joint part is provided with a second accommodating hole, and the inner side wall of the first accommodating hole is provided with a clamping ear groove;
the third waterproof ring is arranged at the bottom of the first accommodating hole;
two ends of the ceramic tube extend into the first accommodating hole and the second accommodating hole respectively;
the standard optical fiber adapter interface is arranged in the second accommodating hole and is connected with the ceramic tube;
the nut is fixedly connected to the outer side of the second joint part;
the head end of the inner core extends into the first accommodating hole, the third waterproof ring is pressed at the bottom of the first accommodating hole, the clamping lugs are clamped into the clamping lug grooves after being deformed, and the head end of the inserting core is inserted into the ceramic tube.
In one embodiment of the application, the matching adapter further comprises a dustproof cap, the dustproof cap is sleeved on the first joint part in a non-working state, the first joint part is provided with a second annular groove, a second sealing ring is arranged in the second annular groove and is connected with the dustproof cap through a rope, the installation hole of the dustproof and waterproof box is a stepped hole, the second joint part stretches into a small hole section of the stepped hole, the nut is positioned on the inner side of the dustproof and waterproof box, the first joint part is positioned in a large hole section of the stepped hole, and the second sealing ring is further connected with the inner wall of the large hole section of the stepped hole in a sealing mode.
Due to the application of the technical scheme, compared with the prior art, the application has the following advantages: the optical cable node connecting device disclosed by the application has the advantages that the dustproof and waterproof optical fiber connector is prefabricated at the end part of the optical cable, the plurality of matched adapters are prefabricated in the dustproof and waterproof box, the matched adapters are connected with the optical fiber connector of the optical splitter, when wiring is needed, the box door of the dustproof and waterproof box is not required to be opened, the optical cable and the optical splitter can be connected by only inserting the dustproof and waterproof optical fiber connector into the mounting hole, the 'plug and play' characteristic of the application greatly reduces the construction cost and the construction time, improves the terminating performance and the protection, is more convenient for the later-period link maintenance, and provides an effective and simple terminating scheme for FTTH wiring.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application.
FIG. 1 is an overall schematic of a node-connection arrangement of an optical cable of the present disclosure;
FIG. 2 is an assembled schematic view of a node-connection device of the fiber optic cable disclosed in the present application;
FIG. 3 is a perspective view of a standard fiber optic connector of the present disclosure;
FIG. 4 is an assembled cross-sectional view of a standard fiber optic connector of the present disclosure;
FIG. 5 is an exploded view of a standard fiber optic connector of the present disclosure;
FIG. 6 is an exploded view of a standard fiber optic connector of the present disclosure;
FIG. 7 is a perspective view of the disclosed core;
FIG. 8 is a cross-sectional view of the disclosed core;
FIG. 9 is a perspective view of a ferrule of the present disclosure;
FIG. 10 is a perspective view of a mating adapter of the present disclosure;
FIG. 11 is an assembled cross-sectional view of the mating adapter of the present disclosure;
FIG. 12 is an exploded view of the mating adapter of the present disclosure;
fig. 13 is an exploded view of the mating adapter of the present disclosure.
100 parts of a dustproof waterproof box;
200. a standard fiber optic connector;
300. an optical cable to be connected;
400. dustproof and waterproof optical fiber connector; 401. a connector body; 4011. a notch; 402. a first waterproof ring; 403. an inner core; 4031. clamping ears; 404. a middle sleeve; 4041. a male member; 405. a first spring; 406. a stop ring; 407. a core insert; 4071. a convex key; 4072. fool-proof marks; 408. a second spring; 409. a bottom cover; 410. a second waterproof ring; 411. a tail sleeve; 412. an annular inner cavity; 413. clamping springs; 414. a dust plug; 415. a first seal ring;
500. a mating adapter; 501. an adapter body; 5011. a first accommodation hole; 5012. a second accommodation hole; 502. a third waterproof ring; 503. a ceramic tube; 504. a standard fiber optic adapter interface; 505. a nut; 506. a dust cap; 507. and a second seal ring.
Detailed Description
The following describes in further detail the embodiments of the present application with reference to the drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the application as a modification. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof. In the present disclosure, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, are merely relational terms determined for convenience in describing structural relationships of the various elements or components of the present disclosure, and do not denote any one of the elements or components of the present disclosure, and are not to be construed as limiting the present disclosure. In the present disclosure, terms such as "fixedly coupled," "connected," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the disclosure may be determined according to circumstances, and should not be interpreted as limiting the disclosure, for relevant scientific research or a person skilled in the art.
The following are illustrative of the preferred embodiments of the application, but are not intended to limit the scope of the application.
Example 1
Referring to fig. 1 and 2, as shown in the drawings, an optical cable node connection device includes a dustproof and waterproof box 100 and a standard optical fiber connector 200, wherein the standard optical fiber connector 200 is disposed in the dustproof and waterproof box 100, an end portion of an optical cable 300 to be connected is connected with the dustproof and waterproof optical fiber connector 400 in advance, a plurality of mounting holes are formed in a wall of the dustproof and waterproof box 100, a mating adapter 500 is mounted in each of the mounting holes, an interface of the mating adapter 500 facing the inside of the dustproof and waterproof box 100 may be connected with the standard optical fiber connector 200, an interface of the mating adapter 500 facing the outside of the dustproof and waterproof box 100 may be connected with the dustproof and waterproof optical fiber connector 400 quickly, and the optical cable 300 to be connected, the dustproof and waterproof optical fiber connector 400, the mating adapter 500, and the standard optical fiber connector 200 may be connected to form an optical signal transmission path.
The application relates to a prefabricated standard optical fiber connector and a matched adapter, comprising an optical cable, a dustproof and waterproof optical fiber connector which is prefabricated and connected at the end part of an optical cable main body and forms an optical signal transmission path, and a matched adapter matched with the waterproof assembly. One end of the matched adapter can be matched with a prefabricated standard optical fiber connector, and the other end of the matched adapter is a standard SC matched adapter which can be connected with a standard SC/APC connector. In the application, the dustproof and waterproof optical fiber connector is prefabricated at the end part of the optical cable, a plurality of matched adapters are prefabricated in the dustproof and waterproof box, the matched adapters are connected with the optical fiber connector of the optical splitter, when wiring is needed, the box door of the dustproof and waterproof box is not required to be opened, and the optical cable and the optical splitter can be connected by inserting the dustproof and waterproof optical fiber connector into the mounting hole.
Referring to fig. 3 to 9, as shown in the drawings, the dustproof and waterproof optical fiber connector according to the preferred embodiment of the present embodiment includes a connector body 401, a first waterproof ring 402, an inner core 403, a middle sleeve 404, a first spring 405, a stop ring 406, a ferrule 407, a second spring 408, a bottom cover 409, a second waterproof ring 410, and a tail sleeve 411;
the connector body 401, the first waterproof ring 402, the inner core 403, the middle sleeve 404, the first spring 405, the stop ring 406, the ferrule 407, the second spring 408, the bottom cover 409, the second waterproof ring 410, and the tail sleeve 411 each have a head end facing the free end of the optical cable 300 to be connected, a tail end facing away from the free end of the optical cable to be connected, and a center hole through which the optical cable to be connected passes;
the connector body 401 is provided with an annular inner cavity 412 penetrating the head end and surrounding the central hole;
the first waterproof ring 402 is disposed at the bottom of the annular cavity 412;
the tail end of the inner core 403 extends into the annular inner cavity 412, the tail end of the inner core 403 compresses the first waterproof ring 402 at the cavity bottom of the annular inner cavity 412, the tail end of the inner core 403 is fixedly connected with the connector main body 401, and the head end of the inner core 403 is an elastically deformable clamping ear 4031;
the tail end of the middle sleeve 404 may be connected to the outside of the head end of the connector body 401, the middle sleeve 404 may slide relative to the connector body 401, the middle sleeve 404 may not be separated from the connector body 401, the head end of the middle sleeve 404 may be a protruding member 4041, when the middle sleeve 404 slides in the direction of the head end, the protruding member 4041 may contact the clamping ear 4031 and limit the deformation of the clamping ear 4031, and when the middle sleeve 404 slides in the direction of the tail end, the protruding member 4041 may be separated from the clamping ear 4031 and allow the deformation of the clamping ear 4031;
the elastic restoring force of the first spring 405 drives the middle sleeve 404 to slide in the direction of the head end;
the front end of the stop ring 406 is limited outside the front end of the connector main body 401 and is located in the central hole of the inner core 403, the tail end of the stop ring 406 extends into the central hole of the connector main body 401, and the outer sheath, the reinforcement member and the buffer layer of the optical cable 300 to be connected are pressed between the tail end of the stop ring 406 and the inner wall of the central hole of the connector main body 401;
the head end of the ferrule 407 is located outside the head end of the inner core 403, the tail end of the ferrule 407 extends into the central hole of the stop ring 406, the ferrule 407 can slide relative to the inner core 403 and the stop ring 406, the ferrule 407 cannot be separated from the inner core 403 and the stop ring 406, and the optical fiber of the optical cable 300 to be connected extends into the central hole of the ferrule 407 from the tail end of the ferrule 407;
the elastic restoring force of the second spring 408 drives the ferrule 407 to slide in the direction of the head end;
the head end of the bottom cover 409 is fixedly connected to the outer side of the tail end of the connector body 401;
the tail end of the second waterproof ring 410 is disposed between the tail end of the bottom cover 409 and the outer sheath of the optical cable 300 to be connected, and the head end of the second waterproof ring 410 is pressed between the tail end of the connector body 401 and the outer sheath of the optical cable 300 to be connected;
the tail end of the tail sleeve 411 is closely attached to the outer sheath of the optical cable 300 to be connected, and the head end of the tail sleeve 411 is fixedly connected to the outer side of the tail end of the bottom cover 409.
Above, the ear has with the head end that waits to connect the direction unanimous of the free end of optical cable and with wait to connect the free end of optical cable and the tail end that is opposite to the direction, the head end of inner core is connected to the head end of ear, the unsettled setting of tail end of ear, the tail end of ear is flexible to be close to the inner core and reset, when protruding spare inserts between ear and the inner core, the tail end of ear can not be close to the inner core and warp, when protruding spare leaves the clearance between ear and the inner core, the tail end of ear can be close to the inner core and warp. The convex piece is similar to a fork and can be inserted into and separated from a gap between the clamping lug and the inner core.
The following describes the preparation process of the dustproof and waterproof optical fiber connector:
firstly, preparing each part penetrating through the optical cable, and sequentially: the waterproof connector comprises a tail sleeve, a dustproof plug, a bottom cover, a first waterproof ring, a connector body, a second waterproof ring, a C-shaped clamp spring, a first spring, a middle sleeve and an inner core. The optical cable body of the prefabricated standard optical fiber connector is stripped and separated (not limited to the type of optical cable and meeting implementation conditions, the case is exemplified by a simple round cable), and the optical cable is required to be stripped and separated: the outer sheath, the reinforcement, buffer layer, the cylindric wall in connector main part head end outside is the go-between, and inboard cylindric wall is the crimping ring, carries out the crimping with crimping ring, oversheath, reinforcement, snap ring, and crimping ring part crimping optical cable oversheath, part crimping reinforcement and stop tail end. The crimping can adopt an annular thread crimping mode, the surface area of the crimping surface is reduced as a whole, and meanwhile, the die has stronger tensile resistance. Wherein the stop ring is an FC movable connector standard component. And the buffer layer part of the optical cable which is separated is peeled off, penetrates through the second spring, and is subjected to core insertion solidification grinding.
And then assembling the head end, namely assembling the head end of the middle sleeve with the inner core, wherein the head end and the inner core can be easily plugged and pulled out through reactive force, and the grinded insert core is matched with the inner convex ring in the inner core, so that the head end is assembled.
And then connecting the middle part with the head end, penetrating the first spring into the middle sleeve of the head end, pushing the connector main body towards the head end, and assembling by means of screw thread rotation until the connector main body is turned to the bottom. At this time, the stop ring is in close contact with the connector body. The first spring compresses to resist, and the middle sleeve can be retracted through the first spring at the moment but cannot be pushed forward;
and finally, assembling the tail end, and screwing the bottom cover and the connector main body tightly through mutual threads, so that the tail sleeve is pushed forward.
In one embodiment of the present application, the outer sidewall of the tail end of the inner core 403 is screwed to the connector body 401, the bottom cover 409 is screwed to the connector body 401, and the tail cover 411 is engaged with the bottom cover 409 in a male-female manner. The outer side wall of the tail end of the inner core is provided with external threads, and the inner side wall of the connecting ring is provided with internal threads, so that the threaded connection between the outer side wall of the tail end of the inner core and the connector main body 401 is realized. The inner side wall of the head end of the bottom cover is provided with an inner thread, and the outer side wall of the tail end of the connector body is provided with an outer thread, so that threaded connection between the bottom cover and the connector body is realized. The inside wall of the head end of the tail sleeve is provided with a plurality of grooves, a plurality of bulges are arranged between the grooves, the outside wall of the tail end of the bottom cover is provided with a plurality of grooves, a plurality of bulges are arranged between the grooves, the grooves of the tail sleeve are embedded with the bulges of the bottom cover, and the bulges of the tail sleeve are embedded with the grooves of the bottom cover.
In one embodiment of the present application, a clip spring groove is formed on the outer side of the head end of the connector body 401, a clip spring 413 is formed in the clip spring groove, and the clip spring 413 limits the middle sleeve 404 from being separated from the connector body 401. The clamping spring is a C-shaped clamping spring, the C-shaped clamping spring is convenient to install, and the limiting effect can be achieved.
In one embodiment of the present application, a convex key 4071 is disposed at a middle section of the ferrule 407 and spaced apart from the middle section in a circumferential direction, the convex key 4071 limits the ferrule 407 from separating from the inner core 403 and the stop ring 406, and one of the convex keys 4071 is provided with a mark 4072 for positioning and preventing a dead bolt. One of the four convex keys of the customized ferrule tail handle is provided with an obvious mark, and the mark positioning foolproof effect can be achieved through positioning and grinding of the positioning groove of the bare ferrule grinding disc.
In one embodiment of the present application, the rear end of the connector body 401 is provided with a plurality of slits 4011 sequentially arranged along the circumferential direction thereof, the slits extend to the rear end of the connector body 401 along the direction of the generatrix of the central hole of the connector body 401, and the rear end of the connector body 401 extends between the rear end of the bottom cover 409 and the rear end of the second waterproof ring 410. The part between two adjacent cuts is a pressing claw, and the pressing claw can have certain elasticity and can tightly wrap the optical cable to be connected on the inner side.
In one embodiment of the present application, the middle section of the connector body 401 and the outer side of the head end of the bottom cover 409 are provided with vertical lines. The vertical grain structure can increase the friction force between the vertical grain structure and a tool or a human hand during torsion, and is favorable for disassembly and assembly.
In an embodiment of the present application, the dustproof and waterproof optical fiber connector further includes a dustproof plug 414, wherein the dustproof plug 414 seals the head end of the ferrule 407 in a non-working state, a first annular groove is further disposed at an outer side of the tail end of the bottom cover 409, a first sealing ring 415 is disposed in the first annular groove, the first sealing ring 415 is sealed between the head end of the bottom cover 409 and the head end of the tail cover 411, and the first sealing ring 415 is connected to the dustproof plug 414 through a wire rope. The first sealing ring can play a role in sealing and prevent the dust plug from being lost, and has practicability.
Referring to fig. 10-13, as shown in the illustrations therein, in one embodiment of the present application, the mating adapter 500 includes an adapter body 501, a third waterproof ring 502, a ceramic tube 503, a standard fiber optic adapter interface 504 and a nut 505,
the adapter main body 501 comprises a first joint part and a second joint part, wherein the first joint part is provided with a first accommodating hole 5011, the second joint part is provided with a second accommodating hole 5012, and the inner side wall of the first accommodating hole 5011 is provided with a clamping ear groove;
the third waterproof ring 502 is disposed at the bottom of the first accommodating hole 5011;
both ends of the ceramic tube 503 extend into the first receiving hole 5011 and the second receiving hole 5012, respectively;
the standard fiber optic adapter interface 504 is disposed in the second receiving hole 5012, and the standard fiber optic adapter interface 504 is connected to the ceramic tube 503;
the nut 505 is fixedly connected to the outer side of the second joint part;
the head end of the inner core 403 extends into the first accommodating hole 5011, the third waterproof ring 502 is pressed against the bottom of the first accommodating hole 5011, the clip 4031 is deformed and then is clipped into the clip groove, and the head end of the ferrule 407 is inserted into the ceramic tube 503.
In particular, standard fiber optic adapters are used to connect two standard fiber optic connectors, which generally include two standard fiber optic adapter interfaces at both ends and a ceramic tube connecting the two standard fiber optic adapter interfaces. The matched adapter of the application adopts a standard optical fiber adapter interface and a ceramic tube to realize the connection of the standard optical fiber connector and the dustproof and waterproof optical fiber connector. The prefabricated standard optical fiber connector is connected with the matched adapter, the head end of the inner core is inserted into the first accommodating hole, the inner core clamping lug is propped against the middle sleeve plug-in unit at the moment and clamped into the matched adapter body, and the inner core is matched with the cavity structure inside the first accommodating hole at the moment. If the connection is required to be disassembled, the middle sleeve can be retracted towards the tail end direction, and after the head end of the clamping ear of the inner core exits from the stress release, the clamping ear can deform, so that the dustproof and waterproof optical fiber connector is separated from the matched adapter.
In one embodiment of the present application, the mating adapter 500 further includes a dust cap 506, in a non-operating state, the dust cap 506 is sleeved on the first joint portion, the first joint portion is provided with a second annular groove, a second sealing ring 507 is disposed in the second annular groove, the second sealing ring 507 is connected to the dust cap 506 through a wire rope, a mounting hole of the dust waterproof case 100 is a stepped hole, the second joint portion extends into a small hole section of the stepped hole, the nut 505 is located inside the dust waterproof case, the first joint portion is located in a large hole section of the stepped hole, and the second sealing ring is further connected to an inner wall of the large hole section of the stepped hole in a sealing manner. The second sealing ring can play a role in sealing and preventing the dust cap from being lost, and has practicability.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides an optical cable node connecting device, includes dustproof waterproof case and standard optical fiber connector, standard optical fiber connector locates in the dustproof waterproof case, its characterized in that, the tip of waiting to connect the optical cable is connected dustproof waterproof optical fiber connector in advance, be equipped with a plurality of mounting holes on the wall of dustproof waterproof case, every install supporting adapter in the mounting hole, supporting adapter orientation dustproof waterproof case inside interface can be connected with standard optical fiber connector, supporting adapter orientation dustproof waterproof case outside interface can with dustproof waterproof optical fiber connector quick connect, wait to connect the optical cable dustproof waterproof optical fiber connector, supporting adapter and standard optical fiber connector connects the back and forms the optical signal transmission passageway;
the dustproof and waterproof optical fiber connector comprises a connector main body, a first waterproof ring, an inner core, a middle sleeve, a first spring, a stop ring, an inserting core, a second spring, a bottom cover, a second waterproof ring and a tail sleeve;
the connector body, the first waterproof ring, the inner core, the middle sleeve, the first spring, the stop ring, the ferrule, the second spring, the bottom cover, the second waterproof ring and the tail sleeve are respectively provided with a head end which is consistent with the direction of the free end of the optical cable to be connected, a tail end which is opposite to the direction of the free end of the optical cable to be connected and a central hole for the optical cable to be connected to pass through;
the connector body is provided with an annular inner cavity which penetrates through the head end of the connector body and is arranged around the central hole of the connector body;
the first waterproof ring is arranged at the bottom of the annular inner cavity;
the tail end of the inner core stretches into the annular inner cavity, the first waterproof ring is pressed on the cavity bottom of the annular inner cavity by the tail end of the inner core, the tail end of the inner core is fixedly connected with the connector main body, and the head end of the inner core is an elastically deformable clamping lug;
the tail end of the middle sleeve can be connected to the outer side of the head end of the connector main body, the middle sleeve can slide relative to the connector main body, the head end of the middle sleeve cannot be separated from the connector main body, the head end of the middle sleeve is a convex piece, when the middle sleeve slides towards the direction of the head end of the middle sleeve, the convex piece contacts with the clamping lug and limits the deformation of the clamping lug, and when the middle sleeve slides towards the direction of the tail end of the middle sleeve, the convex piece is separated from the clamping lug and allows the deformation of the clamping lug;
the elastic restoring force of the first spring drives the middle sleeve to slide towards the direction of the head end of the middle sleeve;
the head end of the stop ring is limited outside the head end of the connector main body and is positioned in the central hole of the inner core, the tail end of the stop ring stretches into the central hole of the connector main body, and the outer protective layer, the reinforcing piece and the buffer layer of the optical cable to be connected are compressed between the tail end of the stop ring and the inner wall of the central hole of the connector main body;
the head end of the ferrule is positioned outside the head end of the inner core, the tail end of the ferrule extends into the central hole of the stop ring, the ferrule can slide relative to the inner core and the stop ring, the ferrule cannot be separated from the inner core and the stop ring, and an optical fiber of an optical cable to be connected extends into the central hole of the ferrule from the tail end of the ferrule;
the elastic restoring force of the second spring drives the lock pin to slide towards the direction of the head end of the lock pin;
the head end of the bottom cover is fixedly connected to the outer side of the tail end of the connector main body;
the tail end of the second waterproof ring is arranged between the tail end of the bottom cover and the outer protective layer of the optical cable to be connected, and the head end of the second waterproof ring is pressed between the tail end of the connector main body and the outer protective layer of the optical cable to be connected;
the tail end of the tail sleeve is tightly attached to the outer protective layer of the optical cable to be connected, and the head end of the tail sleeve is fixedly connected to the outer side of the tail end of the bottom cover;
a clamp spring groove is formed in the outer side of the head end of the connector main body, a clamp spring is arranged in the clamp spring groove, and the clamp spring limits the middle sleeve to be separated from the connector main body;
the matched adapter comprises an adapter main body, a third waterproof ring, a ceramic tube, a standard optical fiber adapter interface and a nut,
the adapter body comprises a first joint part and a second joint part, wherein the first joint part is provided with a first accommodating hole, the second joint part is provided with a second accommodating hole, and the inner side wall of the first accommodating hole is provided with a clamping ear groove;
the third waterproof ring is arranged at the bottom of the first accommodating hole;
two ends of the ceramic tube extend into the first accommodating hole and the second accommodating hole respectively;
the standard optical fiber adapter interface is arranged in the second accommodating hole and is connected with the ceramic tube;
the nut is fixedly connected to the outer side of the second joint part;
the head end of the inner core extends into the first accommodating hole, the third waterproof ring is pressed at the bottom of the first accommodating hole, the clamping lugs are clamped into the clamping lug grooves after being deformed, and the head end of the inserting core is inserted into the ceramic tube.
2. The fiber optic cable node connection device of claim 1, wherein the outer sidewall of the tail end of the inner core is threadably connected to the connector body, the bottom cover is threadably connected to the connector body, and the tail sleeve is matingly and non-matingly engageable with the bottom cover.
3. The fiber optic cable node connection device of claim 1, wherein the central section of the ferrule is provided with tabs disposed at circumferentially spaced distances therealong, the tabs limiting the ferrule from disengaging the inner core and the stop ring, wherein one tab is provided with a mark for locating foolproof.
4. The optical cable node connection device according to claim 1, wherein the rear end of the connector body is provided with a plurality of cutouts arranged in sequence along the circumferential direction thereof, the cutouts extending in the direction of the generatrix of the central hole of the connector body to the rear end of the connector body, the rear end of the connector body extending between the rear end of the bottom cover and the rear end of the second waterproof ring.
5. The fiber optic cable node connection device of claim 1, wherein the middle section of the connector body and the outer side of the head end of the bottom cover are each provided with a vertical grain structure.
6. The optical cable node connecting device according to claim 1, wherein the dustproof and waterproof optical fiber connector further comprises a dustproof plug, the dustproof plug seals the head end of the ferrule in a non-working state, a first annular groove is further formed in the outer side of the tail end of the bottom cover, a first sealing ring is arranged in the first annular groove, the first sealing ring is sealed between the head end of the bottom cover and the head end of the tail sleeve, and the first sealing ring is connected with the dustproof plug through a rope.
7. The optical cable node connecting device according to claim 1, wherein the mating adapter further comprises a dust cap, in a non-working state, the dust cap is sleeved on the first joint part, the first joint part is provided with a second annular groove, a second sealing ring is arranged in the second annular groove, the second sealing ring is connected with the dust cap through a rope, a mounting hole of the dust-proof waterproof box is a stepped hole, the second joint part extends into a small hole section of the stepped hole, the nut is positioned on the inner side of the dust-proof waterproof box, the first joint part is positioned in a large hole section of the stepped hole, and the second sealing ring is further connected with the inner wall of the large hole section of the stepped hole in a sealing manner.
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| CN202211223159.0A CN115437080B (en) | 2022-10-08 | 2022-10-08 | Optical cable node connecting device |
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| CN202211223159.0A CN115437080B (en) | 2022-10-08 | 2022-10-08 | Optical cable node connecting device |
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| CN115437080B true CN115437080B (en) | 2023-08-18 |
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|---|---|
| CN115437080A (en) | 2022-12-06 |
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Effective date of registration: 20230925 Address after: 215000 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee after: HENGTONG OPTIC-ELECTRIC Co.,Ltd. Patentee after: JIANGSU HENGTONG PHOTOCONDUCTIVE NEW MATERIALS Co.,Ltd. Address before: 215234 88 Hengtong Road, seven Du Town, Wujiang District, Suzhou, Jiangsu Patentee before: HENGTONG OPTIC-ELECTRIC Co.,Ltd. |
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