CN113917618A - Direct insertion type optical fiber connector - Google Patents
Direct insertion type optical fiber connector Download PDFInfo
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- CN113917618A CN113917618A CN202111029668.5A CN202111029668A CN113917618A CN 113917618 A CN113917618 A CN 113917618A CN 202111029668 A CN202111029668 A CN 202111029668A CN 113917618 A CN113917618 A CN 113917618A
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- pipe section
- sealing
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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
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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
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
- G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
-
- 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
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3851—Ferrules having keying or coding means
-
- 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
- G02B6/3869—Mounting ferrules to connector body, i.e. plugs
- G02B6/387—Connector plugs comprising two complementary members, e.g. shells, caps, covers, locked together
-
- 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
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3891—Bayonet type
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention discloses a direct-insert type optical fiber connector, which comprises a direct-insert type optical fiber connector plug, an SC optical fiber standard connector and an optical fiber adapter, wherein the direct-insert type optical fiber connector plug comprises an SC connector inner core standard suite, a tubular column-shaped inner long handle, an abutting joint sleeve, a sealing sleeve, a limiting ring, a copper pressing ring, a heat shrink tube and a tail sleeve, one end of the SC connector inner core standard suite is connected with the left end of the inner long handle, the other end of the SC connector inner core standard suite is connected with the optical fiber adapter, the right end of the inner long handle is connected with the left end of the copper pressing ring, the right end of the copper pressing ring is connected with the heat shrink tube, the tail sleeve is sleeved on the left end of the copper pressing ring, the left end of the heat shrink tube and the right side of the inner long handle, the abutting joint sleeve is sleeved on the left side of the inner long handle and provided with a buckling mechanism for buckling and connecting with the optical fiber adapter, the sealing sleeve is sleeved on the abutting joint sleeve and provided with a tripping mechanism for releasing the buckling state of the buckling mechanism, and a part between the abutting joint sleeve and the inner long handle, A sealing ring is arranged between the butt sleeve and the sealing sleeve, and a limiting ring is sleeved between the tail sleeve and the butt sleeve.
Description
Technical Field
The invention belongs to the technical field of optical fiber communication, and particularly relates to a direct-insertion type optical fiber connector.
Background
With the advent of 5G technology, optical fiber communication has become more and more intensive, and from FTTC to the time of FTTH, optical fibers are increasingly used and increasingly larger in volume. How to rapidly, stably and low-loss butt-joint optical fibers becomes more and more important, particularly in the field of rapid outdoor optical fiber butt-joint. At present, the butt joint of outdoor optical fibers generally selects the butt joint of a splice box or the splicing of a connector, and the splicing conventionally adopts the rotary clamping or the threaded connection after the splicing, so that the problems of large splicing loss, low construction efficiency and the like caused by insufficient concentricity exist.
Disclosure of Invention
In order to solve the problems of large insertion loss and low construction efficiency in the rotary clamping or threaded connection after the insertion, the invention provides a direct insertion type optical fiber connector.
The invention relates to a direct-insert optical fiber connector, which comprises a direct-insert optical fiber connector plug and an SC optical fiber standard connector, wherein the direct-insert optical fiber connector plug and the SC optical fiber standard connector are connected through an optical fiber adapter, the direct-insert optical fiber connector plug comprises an SC connector inner core standard sleeve formed by combining an optical fiber, an inner sleeve, a phi 2.5 insertion core and an inner sleeve spring, a tubular column-shaped inner long handle, an abutting sleeve, a sealing sleeve, a limiting ring, a copper compression ring, a heat shrinkage pipe and a tail sleeve, one end of the inner sleeve spring of the SC connector inner core standard sleeve is connected with the left end of the inner long handle, the other end of the SC connector inner core standard sleeve is used for being connected with the optical fiber adapter, the right end of the inner long handle is connected with the left end of the copper compression ring, the right end of the copper compression ring is connected with the heat shrinkage pipe, the tail sleeve is sleeved on the left end of the copper compression ring, the left end of the heat shrinkage pipe and the right side of the inner long handle, the abutting sleeve is sleeved on the left side of the inner long handle, the butt joint sleeve is provided with a buckling mechanism for buckling and connecting with the optical fiber adapter, the sealing sleeve is sleeved on the butt joint sleeve, the sealing sleeve is provided with a tripping mechanism for relieving the buckling state of the buckling mechanism, a first sealing ring is arranged between the butt joint sleeve and the inner long handle, a second sealing ring is arranged between the butt joint sleeve and the sealing sleeve, and a limiting ring is sleeved on the inner long handle and positioned between the tail sleeve and the butt joint sleeve;
the clamping mechanism comprises at least two elastic clamping strips and cantilevers, the clamping strips are uniformly distributed on the left side part of the butt joint sleeve, the clamping strips are formed by cutting two notches penetrating through the pipe wall from the left end to the right side along the axial direction of the wall of the butt joint sleeve, the clamping strips are positioned between the two notches, the cantilevers are arranged at the left ends of the clamping strips and vertically extend to the axis for clamping the optical fiber adapter, the left side part of each cantilever is gradually converged towards the right side part on the inner side of the pipe wall, and two side surfaces, which are in the same direction with two cutting surfaces of the clamping strip where the cantilever is positioned, of each cantilever are respectively provided with a first sliding table;
the tripping mechanism is positioned at the left end part of the sealing sleeve and comprises at least two convex lugs which are uniformly distributed, a cover plate arranged on the convex lugs and two second sliding tables arranged on the cover plate, wherein the convex lugs are formed by outwards bulging the pipe wall of the end part of the sealing sleeve and are used for accommodating butt sleeve cantilevers, the number of the convex lugs is the same as that of the butt sleeve cantilevers, the cover plate covers the part where the convex lugs are arranged on the left end part, the cover plate and the convex lugs form a semi-closed cavity, the two second sliding tables are arranged on the side, located on the cavity side, of the cover plate, and the two second sliding tables on one cover plate are respectively matched with the two first sliding tables on one cantilever;
a cantilever buckle comprising an elastic clamping strip and a cantilever is arranged at the right end of the sealing sleeve, and the cantilever of the cantilever buckle is arranged at the right end of the clamping strip and vertically extends to the axis for buckling the right end of the outer pipe of the butt joint sleeve;
when the optical fiber adapter is in butt joint with the optical fiber adapter, the sealing sleeve is pushed to drive the butt joint sleeve to insert the cantilever on the butt joint sleeve into the clamping groove of the optical fiber adapter to complete buckling, when the optical fiber adapter is unbuckled, the sealing sleeve slides towards the tail sleeve, the second sliding table on the sealing sleeve is in contact with the first sliding table on the butt joint sleeve and pushes the first sliding table to slide towards the cavity of the lug, and the cantilever end on the butt joint sleeve is driven to enter the cavity of the lug to complete unbuckling.
Further, the inner long handle comprises an SC lining spring seat and a round bush, the SC lining spring seat is respectively a first pipe section, a second pipe section, a third pipe section and a fourth pipe section from left to right, the outer diameter of the second pipe section is the same as that of the third pipe section, the outer diameter of the fourth pipe section is smaller than that of the third pipe section and larger than that of the first pipe section, the left end of the first pipe section is provided with an inner sleeve spring travel cavity for accommodating an inner sleeve spring of an SC connector inner core standard suite, the outer wall of the inner sleeve spring travel cavity is provided with a clamping bulge and a guide strip axially arranged for being connected and fixed with an inner sleeve of the SC connector inner core standard suite, the second pipe section is connected with the first pipe section, the left end part of the second pipe section is provided with an annular butt joint sleeve limiting boss, a first sealing ring groove is arranged between the second pipe section and the third pipe section for connection, the first sealing ring groove is used for being sleeved with a first sealing ring, and a limiting clamp spring groove is arranged between the third pipe section and the fourth pipe section for connection, spacing jump ring groove is used for the spacing ring cover to establish, carry out the annular with third pipe section right-hand member and cut away and form fifth pipe section, the external diameter of fifth pipe section is the same with the external diameter of fourth pipe section, set up the butt sleeve guide way along the axial at third pipe section outer wall, butt sleeve guide way one end opening is in the outer peripheral face of fifth pipe section, the other end seals, fourth pipe section right-hand member links to each other with the round bush left end, the round bush right-hand member is used for connecting the copper clamping ring, fourth pipe section outer peripheral face is used for the tail cover to establish, the second pipeline section, the outer peripheral face of third pipe section and fifth pipe section is used for butt sleeve cover to establish.
Furthermore, the butt joint sleeve comprises an outer pipe and an inner pipe which are coaxially arranged, a circle of annular bulge is arranged on the inner wall of the outer pipe to divide the outer pipe into a left pipe section and a right pipe section, one end of the inner pipe is connected to the annular bulge, and a second sealing ring groove is arranged on the outer peripheral surface of the right pipe section of the outer pipe for a second sealing ring to be sleeved; a sealing sleeve guide groove is axially formed in the left pipe section from the left end to the right, a third limiting convex strip is axially arranged on the inner wall of the left pipe section and used for being connected with the guide groove on the optical fiber adapter, and a limiting convex block used for being matched with the optical fiber adapter is axially arranged on the annular protrusion towards the left pipe section; the right end head of inner tube is buckled to the axis and is divided into straight tube section and bending section with the inner tube, and the internal diameter of straight tube section cooperatees with the external diameter of interior long handle second pipe section and third pipe section and is used for the cover to establish including long handle second pipe section and third pipe section, and the internal diameter of bending section cooperatees with the external diameter of interior long handle fifth pipe section and is used for the cover to establish including long handle fifth pipe section, sets up the first spacing sand grip of cooperating with above-mentioned butt joint sleeve guide way along the axial on the inner wall of inner tube right side.
Furthermore, a second limiting convex strip matched with the guide groove of the sealing sleeve is axially arranged on the inner wall of the left side part of the sealing sleeve.
Furthermore, an anti-reverse connection boss is arranged on the limit boss of the butt joint sleeve.
Furthermore, the butt-joint sleeve cantilever is triangular prism-shaped, the cross section of the butt-joint sleeve cantilever is a right-angled triangle, and the two first sliding tables on the cantilever are respectively positioned on two end faces of the triangular prism.
Furthermore, two guide strips are symmetrically distributed; the two clamping bulges are symmetrically distributed; the two butt joint sleeve guide grooves are symmetrically distributed; the number of the seal sleeve guide grooves is two, and the two seal sleeve guide grooves are symmetrically distributed; the two limiting lugs are symmetrically distributed; the number of the first limiting convex strips is two, and the first limiting convex strips are symmetrically distributed; the number of the second limiting convex strips is two, and the two second limiting convex strips are symmetrically distributed; the third limit convex strips are two and are symmetrically distributed.
Has the advantages that: the direct-insert optical fiber connector adopts a direct-insert optical fiber connector plug, the direct-insert optical fiber connector plug is provided with a butt joint sleeve of a buckle mechanism and can be directly buckled on an optical fiber adapter, the problems of large insertion loss, low construction efficiency and the like caused by insufficient concentricity existing in the conventional rotary clamping or threaded connection mode are solved, a sealing sleeve with a tripping mechanism is adopted, when tripping is needed, the sealing sleeve slides towards a tail sleeve, a second sliding table on the tripping mechanism is contacted with a first sliding table on the buckle mechanism and pushes the first sliding table to slide towards a cavity of a lug, a cantilever end head of the buckle mechanism is driven to enter the cavity and leave a buckling part of the optical fiber adapter, and therefore the buckling state is relieved; the inner long handle is arranged to be matched with the butt-joint sleeve better; the sealing performance and the positioning stability are improved by arranging the second sealing ring groove, the sealing sleeve guide groove and each limiting component; the sealing sleeve is conveniently connected with the butt sleeve by arranging the second limiting convex strip of the sealing sleeve; the reverse connection prevention boss is arranged to prevent reverse connection when the butting sleeve is aligned; the butt joint sleeve cantilever is designed into a triangular prism shape, and the section of the butt joint sleeve cantilever is a right-angled triangle, so that buckling and tripping are facilitated; by setting each connecting limiting component to be two and symmetrically distributed, the material is saved and the stability is improved.
Drawings
FIG. 1 is an exploded view of an in-line fiber optic connector of the present invention;
FIG. 2 is a cross-sectional view of an in-line fiber optic connector of the present invention;
FIG. 3 is an exploded view of a plug for a direct-insertion fiber optic connector;
FIG. 4 is a cross-sectional view of an in-line fiber optic connector plug;
FIG. 5 is a schematic structural view of the inner long handle; (a) is a perspective view; (b) is a cross-sectional view;
FIG. 6 is a schematic structural view of the docking sleeve; (a) is a perspective view; (b) is a cross-sectional view;
FIG. 7 is a schematic view of the seal cartridge; (a) is a perspective view; (b) is a cross-sectional view;
FIG. 8 is a schematic structural view of an adapter housing;
in the figure, 101, a direct-insertion type optical fiber connector plug; 102. a fiber optic adapter; 103. an SC fiber standard connector; 201. an inner sleeve; 202. phi 2.5 inserting core; 203. an inner sleeve spring; 204. an inner long handle; 205. a first seal ring; 206. butting sleeves; 207. sealing sleeves; 208. a limiting ring; 209. a copper pressure ring; 210. heat shrink tubing; 211. a tail sleeve; t1, first pipe segment; t2, second pipe section; t3, third pipe section; t4, fourth tube segment; t5, fifth tube segment; t6, a straight pipe section; t7, bending section; 501. an SC liner spring seat; 502. a round bushing; 503. an inner sleeve spring travel cavity; 504. a guide strip; 505. clamping the bulges; 506. a butt joint sleeve limiting boss; 507. a first seal ring groove; 508. a docking sleeve guide groove; 509. a limiting clamp spring groove; 510. a reverse connection prevention boss; 602. a cantilever; 603. clamping the strip; 604. a first sliding table; 605. a third limiting convex strip; 606. a seal sleeve guide groove; 607. a second seal ring groove; 608. a first limit convex strip; 609. a limiting bump; 610. a second seal ring; 701. a second limit convex strip; 702. a lug; 703. a chamber; 704. a second sliding table; 705. a cantilever is buckled; 801. the reverse connection prevention bulge is arranged; 802. an axial guide groove; 803. a clamping groove.
Detailed Description
The technical solution of the present invention is described in detail by the following examples, but the scope of the present invention is not limited to the examples.
Examples
As shown in fig. 1 to 8, an in-line optical fiber connector includes an in-line optical fiber connector plug 101 and an SC optical fiber standard connector 103, the in-line optical fiber connector plug 101 and the SC optical fiber standard connector 103 are connected by an optical fiber adapter 102, and the in-line optical fiber connector plug 101 includes an SC connector inner core standard sleeve formed by combining an optical fiber, an inner sleeve 201, a phi 2.5 ferrule (including a tail handle) 202, and an inner sleeve spring 203, a tubular column-shaped inner long handle 204, a butt sleeve 206, a sealing sleeve 207, a limit ring 208, a copper press ring 209, a heat shrink tube 210, and a tail sleeve 211. One end of the inner sleeve spring 203 of the SC connector inner core standard sleeve is connected with the left end of the inner long handle 204, the other end of the SC connector inner core standard sleeve is used for being connected with the optical fiber adapter 102, the right end of the inner long handle 204 is connected with the left end of the copper press ring 209, the right end of the copper press ring 209 is connected with the heat shrink tube 210, and the tail sleeve 211 is sleeved on the copper press ring 209, the left end of the heat shrink tube 210 and the right side of the inner long handle 204. The docking sleeve 206 is sleeved on the left side of the inner long handle 204, and the docking sleeve 206 is provided with a buckling mechanism for buckling and connecting with the optical fiber adapter 102; the sealing sleeve 207 is sleeved on the butting sleeve 206, and the sealing sleeve 207 is provided with a tripping mechanism for releasing the buckling state of the buckling mechanism; a first sealing ring 205 is arranged between the butt sleeve 206 and the inner long handle 204, a second sealing ring 610 is arranged between the butt sleeve 206 and the sealing sleeve 207, and a limiting ring 208 is sleeved on the inner long handle 204 and is positioned between the tail sleeve 211 and the butt sleeve 206.
The clamping mechanism comprises two elastic clamping strips 603 and a cantilever 602, the two clamping strips 603 are symmetrically distributed on the left side part of the butt joint sleeve, the clamping strips 603 are formed by cutting two gaps penetrating through the wall of the butt joint sleeve from the left end to the right in the axial direction, and the clamping strips 603 are positioned between the two gaps; cantilever 602 sets up the left end at gib block 603, and is the triangular prism form, and the cross-section is right triangle, and a right-angle side of triangular prism form cantilever 602 is on a parallel with the left end face of butt joint sleeve 206, and connects perpendicularly on gib block 603, and another right-angle side is located gib block 603 towards the direction of left side extension line, is located the inboard draw-in groove that is used for inserting fiber adapter 102 and withholds by the sharp-end that inclined plane and right-angle side formed of butt joint sleeve inner wall, sets up a first slip table 604 respectively at the both ends face of triangular prism.
The tripping mechanism is located at the left end of the sealing sleeve 207 and comprises two lugs 702 which are symmetrically distributed, a cover plate arranged on the lugs 702 and two second sliding tables 704 arranged on the cover plate, wherein the lugs 702 are used for outwards bulging the pipe wall of the end part of the sealing sleeve to form a cantilever 602 of the butt joint sleeve, the quantity of the lugs 702 is the same as that of the cantilever 602 of the butt joint sleeve, the cover plate covers the part of the lug on the left port, the cover plate and the lugs 702 form a semi-closed chamber 703, the two second sliding tables 704 are arranged on the surface of the cover plate on the chamber side, and the two second sliding tables 704 on one cover plate are respectively matched with the two first sliding tables 604 on one cantilever. Specifically, the second sliding table 704 is a small-angle slope structure, a contact chamfer is arranged at an initial contact position, the radial dimension of the second sliding table 704 after installation is smaller than that of the first sliding table 604, and the rigidity of the second sliding table 704 is stronger than that of the first sliding table 604 due to a cantilever-free structure.
The right end of the sealing sleeve 207 is provided with a cantilever buckle 705 comprising an elastic clamping strip and a cantilever, and the cantilever of the cantilever buckle 705 is arranged at the right end of the clamping strip and vertically extends to the axis to buckle the right end of the outer tube of the butt joint sleeve 206.
When the optical fiber adapter 102 is butted, the sealing sleeve 207 is pushed, the cantilever of the sealing sleeve 207 drives the butting sleeve 206, the butting sleeve cantilever 602 is inserted into the clamping groove of the optical fiber adapter 102 to complete buckling, and at the moment, a gap exists between the first sliding table 604 and the second sliding table 704; when the optical fiber adapter 102 is tripped, the sealing sleeve 207 is slid towards the tail sleeve 211, the second sliding table 704 on the sealing sleeve 207 contacts with the first sliding table 604 on the docking sleeve 206 and pushes the first sliding table 604 to slide into the cavity 703 of the lug 702, and the cantilever tip on the docking sleeve 206 is driven to enter the cavity 703 of the lug 702 and separate from the clamping groove of the optical fiber adapter 102, so that the tripping is completed.
The inner long handle 204 comprises an SC lining spring seat 501 and a round bushing 502, the SC lining spring seat 501 is a first pipe section T1, a second pipe section T2, a third pipe section T3 and a fourth pipe section T4 from left to right, the outer diameter of the second pipe section T2 is the same as that of the third pipe section T3, and the outer diameter of the fourth pipe section T4 is smaller than that of the third pipe section T3 and larger than that of the first pipe section T1. An inner sleeve spring stroke cavity 503 is arranged at the left end of the first pipe section and is used for accommodating an inner sleeve spring 203 of the SC connector inner core standard suite, two clamping protrusions 505 are symmetrically arranged on the outer wall of the inner sleeve spring stroke cavity 503, and two guide strips 504 are symmetrically arranged along the axial direction and are used for being connected and fixed with an inner sleeve 201 of the SC connector inner core standard suite; the second tube section T2 is connected to the first tube section T1, the left end of the second tube section is provided with an annular docking sleeve limit boss 506 to limit the leftward movement of the docking sleeve 206, and the docking sleeve limit boss 506 is provided with an anti-reverse boss 510 for cooperating with the anti-reverse boss of the fiber optic adapter 102 to prevent reverse connection; a first seal ring groove 507 is formed between the second pipe section T2 and the third pipe section T3 for connection, and the first seal ring groove 507 is used for sleeving the first seal ring 205; a limiting clamp spring groove 509 is arranged between the third pipe section T3 and the fourth pipe section T4 for connection, and the limiting clamp spring groove 509 is used for sleeving a limiting ring 208 to limit the right movement of the butting sleeve 206; the right end of the third pipe section is annularly cut to form a fifth pipe section T5, the outer diameter of the fifth pipe section T5 is the same as that of the fourth pipe section T4, two butting sleeve guide grooves 508 are symmetrically formed in the outer wall of the third pipe section along the axial direction, one end of each butting sleeve guide groove 508 is opened on the outer peripheral surface of the fifth pipe section T5, and the other end of each butting sleeve guide groove 508 is closed; fourth pipe section right-hand member and circle bush 502 left end are firmly connected, provide a powerful press platform for follow-up copper clamping ring 209 crimping nylon reinforcement core, and circle bush 502 right-hand member is used for connecting copper clamping ring 209, and the fourth pipe section outer peripheral face is used for the tail cover 211 cover to establish, and second pipe section T2, third pipe section T3 and fifth pipe section T5's outer peripheral face are used for the butt joint cover 206 cover to establish.
The butt-joint sleeve 206 comprises an outer pipe and an inner pipe which are coaxially arranged, a circle of annular bulge is arranged on the inner wall of the outer pipe to divide the outer pipe into a left pipe section and a right pipe section, one end of the inner pipe is connected to the annular bulge, and a second sealing ring groove 607 is arranged on the outer peripheral surface of the right pipe section of the outer pipe for the second sealing ring 610 to be sleeved; two sealing sleeve guide grooves 606 are symmetrically formed in the left pipe section from the left end to the right along the axial direction, two third limiting convex strips 605 are symmetrically arranged on the inner wall of the left pipe section along the axial direction and used for being connected with the guide grooves on the optical fiber adapter 102, and two limiting convex blocks 609 are symmetrically arranged on the annular protrusion towards the left pipe section along the axial direction and used for being matched with the optical fiber adapter 102; the right end of the inner tube is bent towards the axis to divide the inner tube into a straight tube section T6 and a bent section T7, the inner diameter of the straight tube section T6 is matched with the outer diameters of the inner long handle second tube section T2 and the third tube section T3 to be sleeved on the inner long handle second tube section T2 and the third tube section T3, the inner diameter of the bent section T7 is matched with the outer diameter of the inner long handle fifth tube section T5 to be sleeved on the inner long handle fifth tube section T5, and two first limiting convex strips 608 matched with the butt joint sleeve guide groove 508 are symmetrically arranged on the inner wall of the right side of the inner tube along the axial direction.
Two second limiting convex strips 701 matched with the sealing sleeve guide groove 606 are symmetrically arranged on the inner wall of the left side part of the sealing sleeve along the axial direction, and the axial movement of the sealing sleeve 207 is limited.
The fiber adapter 102 and the SC fiber standard connector 103 are conventional components, wherein the fiber adapter 102 has an anti-reverse connection protrusion 801, an axial guide groove 802 and a card groove 803.
In practical use, the first pipe section T1 on the left side of the inner long handle 204 is connected with the SC connector inner core standard suite, then the butting sleeve 206 is sleeved on the inner long handle 204 from right to left, after being sleeved in place, the first limiting convex strip 608 is embedded into the butting sleeve guide groove 508, the inner pipe bending section T7 of the butting sleeve 206 is sleeved on the outer peripheral surface of the fifth pipe section T5, and the straight pipe section T6 is sleeved on the outer peripheral surfaces of the second pipe section T2 and the third pipe section T3; then, the sealing sleeve 207 is sleeved on the butt sleeve 206 from the left side of the butt sleeve 206, after the sealing sleeve is sleeved in place, the second limiting convex strip 701 is embedded into a sealing sleeve guide groove 606 of the butt sleeve 206, a cantilever of the right end of the sealing sleeve buckles the right end of the butt sleeve 206, and a gap exists between the first sliding table 604 and the second sliding table 704; then, other parts are installed to obtain the direct-insertion type optical fiber connector plug. The retainer ring 208 is located in the retainer clamp groove 509, and a seal ring needs to be placed in each seal ring groove in advance to ensure sealing performance.
When the optical fiber adapter 102 needs to be connected, the anti-reverse connection boss 510 is firstly matched with the anti-reverse connection boss 801 of the optical fiber adapter 102 and then aligned, the sealing sleeve 207 is pushed, the cantilever on the sealing sleeve 207 drives the butt-joint sleeve 206, so that after the third limiting convex strip 605 of the butt-joint sleeve 206 enters the axial guide groove 802 of the optical fiber adapter 102, the cantilever tip of the butt-joint sleeve 206 is inserted into the clamping groove 803 of the optical fiber adapter 102 for buckling. When the buckling needs to be released, the sealing sleeve 207 is pushed in the opposite direction, at this time, the second sliding table 704 of the sealing sleeve 207 contacts with the first sliding table 604 of the docking sleeve 206 and pushes the first sliding table 604 to slide towards the lug cavity 703, and the cantilever tip is pushed to leave the clamping groove 803 and enter the cavity 703 to complete the buckling.
The above-mentioned techniques not specifically mentioned refer to the prior art.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A direct-insert type optical fiber connector is characterized by comprising a direct-insert type optical fiber connector plug (101) and an SC optical fiber standard connector (103), wherein the direct-insert type optical fiber connector plug (101) and the SC optical fiber standard connector (103) are connected through an optical fiber adapter (102), the direct-insert type optical fiber connector plug (101) comprises an SC connector inner core standard sleeve formed by combining an optical fiber, an inner sleeve (201), a phi 2.5 insertion core (202) and an inner sleeve spring (203), a tubular inner long handle (204), a butt joint sleeve (206), a sealing sleeve (207), a limiting ring (208), a copper pressure ring (209), a heat shrink tube (210) and a tail sleeve (211), one end of the inner sleeve spring (203) of the SC connector inner core standard sleeve is connected with the left end of the inner long handle (204), and the other end of the SC connector inner core standard sleeve is used for being connected with the optical fiber adapter (102), the right end of the inner long handle (204) is connected with the left end of the copper press ring (209), the right end of the copper press ring (209) is connected with the heat shrink tube (210), the tail sleeve (211) is sleeved on the copper press ring (209), the left end of the heat shrink tube (210) and the right side of the inner long handle (204), the butt joint sleeve (206) is sleeved on the left side of the inner long handle (204), the butt joint sleeve (206) is provided with a buckling mechanism used for buckling and connecting with the optical fiber adapter (102), the sealing sleeve (207) is sleeved on the butt joint sleeve (206), the sealing sleeve (207) is provided with a tripping mechanism used for releasing the buckling state of the buckling mechanism, a first sealing ring (205) is arranged between the butt sleeve (206) and the inner long handle (204), a second sealing ring (610) is arranged between the butt sleeve (206) and the sealing sleeve (207), and a limiting ring (208) is sleeved on the inner long handle (204) and is positioned between the tail sleeve (211) and the butt sleeve (206);
the clamping mechanism comprises at least two elastic clamping strips (603) and cantilevers (602), the clamping strips (603) are uniformly distributed on the left side part of the butt joint sleeve, the clamping strips (603) are formed by cutting two notches penetrating through the pipe wall from the left end to the right in the axial direction of the wall of the butt joint sleeve, the clamping strips (603) are located between the two notches, the cantilevers (602) are arranged at the left end of the clamping strips (603), extend to the axis perpendicularly and are used for clamping the optical fiber adapter (102), the left side part of the cantilever (602) gradually converges towards the right side part on the inner side of the pipe wall, and two side surfaces, which are in the same direction with two cutting surfaces of the clamping strips (603) where the cantilevers are located, of each cantilever are respectively provided with a first sliding table (604);
the tripping mechanism is positioned at the left end part of the sealing sleeve (207) and comprises at least two lugs (702) which are uniformly distributed, a cover plate arranged on the lugs (702) and two second sliding tables (704) arranged on the cover plate, wherein the lugs (702) are formed by outwards bulging the pipe wall of the end part of the sealing sleeve and used for accommodating a butt sleeve cantilever (602), the number of the lugs (702) is the same as that of the butt sleeve cantilever (602), the cover plate covers the part of the left port where the lugs are arranged, the cover plate and the lugs (702) form a semi-closed cavity (703), the two second sliding tables (704) are arranged on the surface of the cover plate positioned on the cavity side, and the two second sliding tables (704) on one cover plate are respectively matched with the two first sliding tables (604) on one cantilever;
a cantilever buckle comprising an elastic clamping strip and a cantilever is arranged at the right end of the sealing sleeve (207), and the cantilever of the cantilever buckle is arranged at the right end of the clamping strip and vertically extends to the axis to be used for buckling the right end of the outer tube of the butt joint sleeve (206);
when the butt joint is carried out with the optical fiber adapter (102), the sealing sleeve (207) is pushed to drive the butt joint sleeve (206), the cantilever (602) on the butt joint sleeve (206) is inserted into a clamping groove of the optical fiber adapter (102) to complete buckling, when the butt joint is released, the sealing sleeve (207) slides towards the tail sleeve (211), the second sliding table (704) on the sealing sleeve (207) is in contact with the first sliding table (604) on the butt joint sleeve (206) and pushes the first sliding table (604) to slide towards the cavity (703) of the lug (702), and the cantilever end head on the butt joint sleeve (206) is driven to enter the cavity (703) of the lug (702) to complete releasing.
2. The in-line optical fiber connector of claim 1, wherein the inner long handle (204) comprises an SC lining spring seat (501) and a round bushing (502), the SC lining spring seat (501) comprises a first tube segment (T1), a second tube segment (T2), a third tube segment (T3) and a fourth tube segment (T4) from left to right, the outer diameter of the second tube segment (T2) is the same as the outer diameter of the third tube segment (T3), the outer diameter of the fourth tube segment (T4) is smaller than the outer diameter of the third tube segment (T3) and larger than the outer diameter of the first tube segment (T1), the left end of the first tube segment is provided with an inner sleeve spring travel cavity (503) for accommodating an inner sleeve spring (203) of the SC connector inner core standard suite, the outer wall of the inner sleeve spring travel cavity (503) is provided with a clamping protrusion (505) and a guide strip (504) is axially arranged for connecting and fixing with an inner sleeve (201) of the SC connector core standard suite, the second pipe section (T2) is connected with the first pipe section (T1), the left end part of the second pipe section is provided with an annular butting sleeve limiting boss (506), a first sealing ring groove (507) is arranged between the second pipe section (T2) and the third pipe section (T3) for connection, the first sealing ring groove (507) is used for sleeving the first sealing ring (205), a limiting clamp spring groove (509) is arranged between the third pipe section (T3) and the fourth pipe section (T4) for connection, the limiting clamp spring groove (509) is used for sleeving the limiting ring (208), the right end part of the third pipe section is annularly cut to form a fifth pipe section (T5), the outer diameter of the fifth pipe section (T5) is the same as that of the fourth pipe section (T4), the outer wall of the third pipe section is axially provided with a butting sleeve guide groove (508), one end of the butting sleeve guide groove (508) is opened at the outer peripheral surface of the fifth pipe section (T5), the other end is closed, and the outer peripheral surface of the fourth pipe section (T3) is connected with the left end of the bushing sleeve (502), the round bushing (502) right end is used for connecting copper clamping ring (209), and the fourth tube section outer peripheral face is used for tail cover (211) cover to establish, and the outer peripheral face of second tube section (T2), third tube section (T3) and fifth tube section (T5) is used for butt joint cover (206) cover to establish.
3. An in-line optical fiber connector according to claim 2, wherein the docking sleeve (206) comprises an outer tube and an inner tube coaxially arranged, a ring-shaped protrusion is arranged on the inner wall of the outer tube to divide the outer tube into a left tube section and a right tube section, one end of the inner tube is connected to the ring-shaped protrusion, and a second sealing ring groove (607) is arranged on the outer peripheral surface of the right tube section of the outer tube for the second sealing ring (610) to be sleeved; a sealing sleeve guide groove (606) is axially formed in the left pipe section from the left end to the right, a third limiting convex strip (605) is axially arranged on the inner wall of the left pipe section and used for being connected with a guide groove in the optical fiber adapter (102), and a limiting convex block (609) used for being matched with the optical fiber adapter (102) is axially arranged on the annular protrusion towards the left pipe section; the right-hand member head of inner tube is buckled to the axis and is divided into straight tube section (T6) and bend section (T7) with the inner tube, and the internal diameter of straight tube section (T6) cooperatees with the external diameter of interior long handle second tube section (T2) and third tube section (T3) and is used for the cover to establish including long handle second tube section (T2) and third tube section (T3), and the internal diameter of bend section (T7) cooperatees with the external diameter of interior long handle fifth tube section (T5) and is used for the cover to establish including long handle fifth tube section (T5), including on the inner wall of pipe right side along the axial setting with butt joint cover guide way (508) matched with first spacing sand grip (608).
4. An in-line optical fiber connector according to claim 3, wherein a second limit rib (701) is axially provided on the inner wall of the left side portion of the sealing boot for engagement with the guide groove (606) of the sealing boot.
5. An in-line fiber optic connector according to claim 4 wherein an anti-reverse connection boss (510) is provided on the mating sleeve retention boss (506).
6. An in-line optical fiber connector according to claim 5 wherein the mating ferrule cantilever (602) is triangular prism shaped with a right triangle cross-section, and the two first ramps (604) on the cantilever (602) are located on two end faces of the triangular prism.
7. An in-line fiber optic connector according to claim 6, wherein the guide strips (504) are two and symmetrically disposed; the number of the clamping protrusions (505) is two, and the clamping protrusions are symmetrically distributed; the number of the butting sleeve guide grooves (508) is two, and the butting sleeve guide grooves are symmetrically distributed; the number of the seal sleeve guide grooves (606) is two, and the seal sleeve guide grooves are symmetrically distributed; the number of the limiting lugs (609) is two, and the limiting lugs are symmetrically distributed; two first limiting convex strips (608) are symmetrically distributed; the number of the second limiting convex strips (701) is two, and the two second limiting convex strips are symmetrically distributed; the number of the third limit convex strips (605) is two, and the third limit convex strips are symmetrically distributed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111029668.5A CN113917618B (en) | 2021-09-03 | 2021-09-03 | Direct insertion type optical fiber connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111029668.5A CN113917618B (en) | 2021-09-03 | 2021-09-03 | Direct insertion type optical fiber connector |
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| CN113917618A true CN113917618A (en) | 2022-01-11 |
| CN113917618B CN113917618B (en) | 2022-07-08 |
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| US20200225423A1 (en) * | 2018-10-18 | 2020-07-16 | Shenzhen Fibercan Optical Co., Ltd | Outdoor optical fiber connection assembly |
| CN112099155A (en) * | 2020-09-09 | 2020-12-18 | 烽火通信科技股份有限公司 | Connector and optical fiber connecting assembly |
| US20210263238A1 (en) * | 2020-02-21 | 2021-08-26 | Chung-Ming Tseng | Optical connector and module thereof |
| CN113311545A (en) * | 2020-02-26 | 2021-08-27 | 立佳兴业股份有限公司 | Buckle structure and optical connector socket thereof |
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2021
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202256770U (en) * | 2011-08-31 | 2012-05-30 | 罗森伯格亚太电子有限公司 | Plugging-pulling device of optical fiber connector and optical-fiber connector plug |
| CN205581352U (en) * | 2016-01-29 | 2016-09-14 | 河北四方通信设备有限公司 | Fiber optic conversion adapter |
| US20200225423A1 (en) * | 2018-10-18 | 2020-07-16 | Shenzhen Fibercan Optical Co., Ltd | Outdoor optical fiber connection assembly |
| CN110568563A (en) * | 2019-08-08 | 2019-12-13 | 潮州三环（集团）股份有限公司 | Push clamp and optical fiber quick connector assembly |
| US20210263238A1 (en) * | 2020-02-21 | 2021-08-26 | Chung-Ming Tseng | Optical connector and module thereof |
| CN113311545A (en) * | 2020-02-26 | 2021-08-27 | 立佳兴业股份有限公司 | Buckle structure and optical connector socket thereof |
| CN112099155A (en) * | 2020-09-09 | 2020-12-18 | 烽火通信科技股份有限公司 | Connector and optical fiber connecting assembly |
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|---|---|
| CN113917618B (en) | 2022-07-08 |
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