CN110658592A - Underwater plugging optical fiber connector socket and assembly thereof - Google Patents
Underwater plugging optical fiber connector socket and assembly thereof Download PDFInfo
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- CN110658592A CN110658592A CN201910934332.XA CN201910934332A CN110658592A CN 110658592 A CN110658592 A CN 110658592A CN 201910934332 A CN201910934332 A CN 201910934332A CN 110658592 A CN110658592 A CN 110658592A
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- socket
- optical fiber
- shell
- fiber channel
- groove
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 167
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229920002545 silicone oil Polymers 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 43
- 238000007789 sealing Methods 0.000 claims description 39
- 230000009471 action Effects 0.000 claims description 11
- 239000013535 sea water Substances 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 38
- 238000003780 insertion Methods 0.000 description 13
- 230000037431 insertion Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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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
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3816—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for use under water, high pressure connectors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to an underwater plug optical fiber connector socket and a component thereof, wherein the socket comprises a socket shell, a sleeve assembled outside the socket shell and a socket accessory shell connected with the socket shell, wherein a socket turntable, a socket stop block and a socket inner shell are sequentially assembled in the socket shell, an installing hole inner shell used for fixing an optical fiber jack contact element is fixed in the socket inner shell, and the optical fiber jack contact element is aligned with an optical fiber channel II on the socket stop block; the periphery of the socket inner shell is provided with a spring for providing elasticity for the movement of the socket turntable and the socket stop block; a protrusion I is arranged outside the socket rotary table and can slide along a through groove in the socket shell to enable the socket rotary table to move axially and rotate at the same time. In the whole plugging and unplugging process of the socket, the inner cavity provided with the jack contact element and the silicone oil in the socket is always in a sealed state and cannot be influenced by external water, the inside and the outside of the socket are always kept balanced through the drain hole and the volume change of the silicone oil in the oil sac, and the socket can be plugged and unplugged at any water depth.
Description
Technical Field
The invention relates to the technical field of connectors, in particular to an underwater plugging optical fiber connector socket and an assembly thereof.
Background
The underwater plugging optical fiber connector is an optical fiber connector which can be used for plugging under water, and is required to be provided with a static and dynamic sealing structure, the plugging and the separating states in water can keep the internal sealing of the connector, and the optical fiber contact members are butted in a sealing cavity and cannot be polluted by the outside, so that optical signals are effectively transmitted. The existing underwater connector socket cannot meet the use environment of deep water and high water pressure, so that silicone oil in the connector leaks and sealing fails in the deep water environment.
Disclosure of Invention
In order to overcome the defects, the invention provides the underwater plugging optical fiber connector socket and the component thereof, when the socket is used underwater, no matter in the whole process of opposite plugging or separation with the plug, the inner cavity in which the optical fiber jack contact element and the silicon oil are arranged in the socket is always in a sealed state, and the socket cannot be influenced by external water bodies and the like when being plugged underwater. Meanwhile, the oil bag I is matched with the drain hole, so that the internal and external pressures of the socket connector are always kept balanced, and the socket and the assembly thereof can be plugged and pulled in any water depth under the condition of effective sealing.
The invention solves the technical problem by adopting the following technical scheme, and the underwater pluggable optical fiber connector socket provided by the invention comprises a socket shell, a sleeve assembled outside the socket shell and a socket accessory shell connected with the socket shell, wherein a socket turntable, a socket stop block and a socket inner shell are sequentially assembled in the socket shell from front to back; a space is reserved between the socket inner shell and the socket stop block so as to facilitate the axial movement of the socket stop block and the socket rotary table in the socket shell, and a spring is assembled on the periphery of the socket inner shell and used for providing elastic force for the movement of the socket rotary table and the socket stop block; the outer circumference of the socket turntable is provided with a protrusion I which can slide along a through groove on the socket shell, so that the socket turntable can rotate while moving axially; in the process that the protrusion I slides from the starting point of the through groove to the end point of the through groove along the through groove, the optical fiber channel I on the socket rotary table is gradually aligned with the optical fiber channel II on the socket stop block, so that the optical fiber channel of the socket is opened; the protrusion I slides to the starting point of the through groove from the end point of the through groove along the through groove, and the optical fiber channel I and the optical fiber channel II are staggered to close the optical fiber channel of the socket.
Furthermore, an oil bag I is assembled in the inner cavity of the socket accessory shell, silicone oil is filled in the oil bag I, a drain hole is further formed in the socket accessory shell, and when the connector is plugged and separated, water outside the oil bag I enters or is discharged through the drain hole, so that the volume of the silicone oil in the oil bag I is changed, and the internal pressure of the socket connector is kept balanced with the external seawater pressure all the time.
Furthermore, a single key I is further arranged on the socket stop block and is used for being matched with a key groove I on the socket shell to enable the socket stop block and the socket rotary disc to move in a reciprocating linear mode in the socket shell.
Furthermore, the inner wall surface of the insertion end of the socket turntable is a conical surface.
Furthermore, the inner wall of the optical fiber channel I is a conical surface, so that the diameter of one surface of the optical fiber channel I adjacent to the socket stop block is large, the diameter of the other surface of the optical fiber channel I adjacent to the socket stop block is small, and a protrusion II which is in a conical surface is arranged between two adjacent optical fiber channels II on the socket stop block and is used for being matched with the optical fiber channel I to close the optical fiber channel I; when the socket turntable rotates, the bulge II is always tightly attached to the socket turntable under the action of the spring; when protruding I was located logical groove starting point position, protruding II inserted in fibre channel I and made fibre channel I all be in the closed condition with fibre channel II, and protruding II peripheries still install O type sealing washer I and make further sealed between socket carousel and the socket dog.
An underwater plugging optical fiber connector assembly comprises a socket, wherein the socket comprises a socket shell, a sleeve assembled outside the socket shell and a socket accessory shell connected with the socket shell, wherein a socket rotary disc, a socket stop block and a socket inner shell are sequentially assembled in the socket shell from front to back; a space is reserved between the socket inner shell and the socket stop block so as to facilitate the axial movement of the socket stop block and the socket rotary table in the socket shell, and a spring is assembled on the periphery of the socket inner shell and used for providing elastic force for the movement of the socket rotary table and the socket stop block; the outer circumference of the socket turntable is provided with a protrusion I which can slide along a through groove on the socket shell, so that the socket turntable can rotate while moving axially; in the process that the protrusion I slides from the starting point of the through groove to the end point of the through groove along the through groove, the optical fiber channel I on the socket rotary table is gradually aligned with the optical fiber channel II on the socket stop block, so that the optical fiber channel of the socket is opened; the protrusion I slides to the starting point of the through groove from the end point of the through groove along the through groove, and the optical fiber channel I and the optical fiber channel II are staggered to close the optical fiber channel of the socket.
Furthermore, an oil bag I is assembled in the inner cavity of the socket accessory shell, silicone oil is filled in the oil bag I, a drain hole is further formed in the socket accessory shell, and when the connector is plugged and separated, water outside the oil bag I enters or is discharged through the drain hole, so that the volume of the silicone oil in the oil bag I is changed, and the internal pressure of the socket connector is kept balanced with the external seawater pressure all the time.
Furthermore, a single key I is further arranged on the socket stop block and is used for being matched with a key groove I on the socket shell to enable the socket stop block and the socket rotary disc to move in a reciprocating linear mode in the socket shell.
Furthermore, the inner wall surface of the insertion end of the socket turntable is a conical surface.
Furthermore, the inner wall of the optical fiber channel I is a conical surface, so that the diameter of one surface of the optical fiber channel I adjacent to the socket stop block is large, the diameter of the other surface of the optical fiber channel I adjacent to the socket stop block is small, and a protrusion II which is in a conical surface is arranged between two adjacent optical fiber channels II on the socket stop block and is used for being matched with the optical fiber channel I to close the optical fiber channel I; when the socket turntable rotates, the bulge II is always tightly attached to the socket turntable under the action of the spring; when protruding I was located logical groove starting point position, protruding II inserted in fibre channel I and made fibre channel I all be in the closed condition with fibre channel II, and protruding II peripheries still install O type sealing washer I and make further sealed between socket carousel and the socket dog.
Compared with the prior art, the invention has the following advantages:
(1) according to the invention, the socket turntable with the optical fiber channel I and the socket stop block with the optical fiber channel II are arranged on the socket connector, the protrusion I is arranged on the socket turntable, the socket turntable can axially and linearly move and can simultaneously rotate when sliding along the through groove, the optical fiber channel I and the optical fiber channel II can be aligned by the rotation of the socket turntable so as to realize the opening of the optical fiber channel of the socket, and the protrusion I can reversely slide along the through groove under the action of the rear spring of the socket stop block so as to realize the dislocation of the optical fiber channel I and the optical fiber channel II, so that the optical fiber channel I and the optical fiber channel II are closed to protect parts such as optical fiber jack contacts in the socket connector.
(2) According to the invention, the socket turntable insertion end and the plug turntable insertion end are designed into conical surfaces, so that water around the socket turntable can be better and faster drained during insertion, meanwhile, a sleeve is arranged outside the socket shell, an O-shaped sealing ring II is arranged between the sleeve and the socket turntable, the socket turntable can be limited and fixed through the sleeve, and the socket turntable moves towards the tail of the socket under the insertion effect of the head base during insertion, so that the plug turntable insertion end firstly passes through the O-shaped sealing ring II, thereby realizing the sealing during the insertion.
(3) The plug comprises a plug shell, wherein parts in the plug shell are sealed through O-shaped sealing rings, such as an O-shaped sealing ring II arranged between a sleeve and a plug turntable, an O-shaped sealing ring III arranged between the sleeve and the plug shell and an O-shaped sealing ring V arranged between the plug shell and the plug shell in the plug, and the inner cavity of the plug, which is internally provided with an optical fiber jack contact element and silicon oil, is always in a sealing state in the whole process of plug-in and separation, and the external water body and the like cannot influence the plug-in and the separation underwater. Meanwhile, the internal pressure and the external pressure of the socket are always kept balanced by the matching of the oil bag I and the drain hole, so that the socket can be used at any water depth under the condition of effective sealing.
Drawings
Fig. 1 is a sectional view of the receptacle connector of the present invention.
Fig. 2 is a schematic view of a rotating structure of the socket.
Fig. 3 is a schematic view of the components of fig. 2 assembled in place.
Fig. 4 is a schematic view of a receptacle fibre channel in a closed state.
Fig. 5 is a schematic view of the receptacle fibre channel in an open state.
Figure 6 is a cross-sectional view of a plug connector of the present invention.
Fig. 7 is a schematic view of a plug rotation structure.
Fig. 8 is a schematic view of a plug fiber channel closed state.
Fig. 9 is a schematic view of the open state of the plug fiber channel.
Fig. 10 is a schematic view of the overall structure of the optical fiber connector of the present invention.
FIG. 11 is a schematic view of the unplugged fiber optic connector of the present invention.
Fig. 12 is a schematic view of the initial mating state of the fiber optic connector of the present invention.
Fig. 13 is a schematic view of the optical fiber connector of the present invention in a plugged-in position.
Element and symbol description:
1: socket housing, 2: sleeve, 3: socket carousel, 4: socket stopper, 5: socket accessory housing, 6: socket inner housing, 7: casing in the mounting hole, 8: fiber receptacle contact, 9: spring, 10: step I, 11: oil pocket i, 12: retainer ring, 13: gasket, 14: nut, 15: stuffing box, 16: protrusion i, 17: through groove, 18: starting point of through groove, 19: through groove end point, 20: fiber channel i, 21: fiber channel ii, 22: and (3) protrusion II, 23: o-shaped seal ring I, 24: single bond i, 25: key groove i, 26: o-ring ii, 27: o-shaped seal ring III, 28: plug housing, 29: coupling nut, 30: plug carousel, 31: plug inner housing, 32: plug stopper, 33: needle-installing inner shell, 34: plug accessory housing, 35: ripple spring, 36: torsion spring, 37: plug outer retainer, 38: fiber stub contact, 39: oil pocket ii, 40: locking tab, 41: receptacle ferrule tail, 42: conical surface i, 43: taper ii, 44: single bond II, 45: notch, 46: projection iii, 47: groove, 48: fiber channel iii, 49: projection iv, 50: fiber channel iv, 51: o-shaped seal ring IV, 52: convex key, 53: key groove ii, 54: plug turnplate insertion end conical surface, 55: socket turntable plugging end conical surface, 56: drain hole, 57: o-shaped sealing ring V, 58: o-shaped sealing ring VI, 59: and an O-shaped sealing ring VII.
Detailed Description
In order to further illustrate the technical means and technical effects adopted by the present invention, the present invention is described in detail below with reference to the examples.
It should be noted that: the terms "front", "back", "tail", etc. indicating the directions of the present invention are based on the illustrated directions or positional relationships and are only for convenience of describing the present invention, so they should not be construed as limiting the present invention. Specifically, one end of the socket and one end of the plug, which are inserted together, are defined as a socket front end and a plug front end, and the other ends of the socket and the plug are defined as tail ends of the socket and the plug, respectively. The orientation of the front and the back is consistent with the orientation of the front end and the tail end.
The underwater plug connector assembly comprises a socket connector and a plug connector which is plugged with the socket connector, as shown in figure 1, the socket connector comprises a socket shell 1, a sleeve 2 assembled outside the socket shell, a socket rotary table 3 and a socket stop 4 which are assembled in the socket shell and positioned at the plugging end of a socket, and a socket accessory shell 5 connected with the socket shell, wherein the socket rotary table is positioned in front of the socket stop, a socket inner shell 6 is also assembled in the socket shell, the socket inner shell is positioned behind the socket stop, a hole-mounting inner shell 7 is also fixed in the inner cavity of the socket inner shell, and four single-core optical fiber jack contact elements 8 are fixed in the hole-mounting inner shell through positioning claws and used for realizing optical fiber connection with optical fiber pin contact elements in the plug connector in a plugging mode. The outer periphery of the socket inner shell is provided with a spring 9 for providing elasticity for the movement of the socket rotary disc and the socket stop block, one end of the spring is limited by the socket stop block, and the other end of the spring is limited by a step I10 on the socket shell. A space is reserved between the socket inner shell and the socket stop block, so that the socket stop block and the socket rotary disc can move axially in the socket inner shell. An oil bag I11 is assembled in the inner cavity of the socket accessory shell, silicone oil is filled in the oil bag I, and the internal pressure of the socket connector and the external seawater pressure are kept balanced through the change of the volume of the silicone oil in the oil bag I when the connector is plugged and separated. The oil bag I is sealed in a pressing mode, one end of the oil bag I is pressed between the socket inner shell and the socket accessory shell, and the other end of the oil bag I is pressed and sealed on the tail shell of the socket accessory shell through a check ring 12 and a gasket 13. The material coefficient of friction on packing ring two sides is different, and retaining ring and packing ring are all metal, can skid, and difficult skidding between packing ring and the oil pocket I, when screwing up the retaining ring, oil pocket I can not rotate, if do not have the packing ring, the retaining ring then can take oil pocket I to rotate together. The tail of the socket accessory shell is connected with a four-core deep sea optical cable, and the optical cable passes through a nut 14 at the tail of the socket accessory shell, is sealed between the stuffing box 15 and the socket accessory shell and is packaged in a vulcanization mode (the technology is prior art and is not described in detail herein).
As shown in fig. 2, a protrusion i 16 is arranged on the outer circumference of the receptacle rotary table and can slide along a through groove 17 on the receptacle housing, so that the receptacle rotary table can rotate while moving linearly in the axial direction, when the protrusion i slides from a starting point 18 to an end point 19 of the through groove, the receptacle rotary table is driven to rotate, so that an optical fiber channel i 20 on the protrusion i is gradually aligned with an optical fiber channel ii 21 on a receptacle stopper, and the receptacle optical fiber channel is opened, otherwise, when the protrusion i slides from the end point to the starting point of the through groove, the receptacle rotary table is driven to rotate, so that the optical fiber channel i and the optical fiber.
The inner wall surface of the optical fiber channel I on the socket turntable is in a conical shape, so that the diameter of one surface, adjacent to the socket stop block, of the optical fiber channel I is large, and the diameter of the other surface of the optical fiber channel I is small, as shown in figure 5. One embodiment is that four fiber channel II are arranged on the socket stop block, a protrusion II 22 which is a conical surface is arranged between every two adjacent fiber channel II and is used for being matched with the fiber channel I, and an O-shaped sealing ring I23 which is embedded into a groove on the end face of the socket stop block is arranged on the periphery of each protrusion II, as shown in figure 2. Under the condition of four optical fiber channels II and four bulges II, the included angle (central angle) between the center of each bulge II and the center of the optical fiber channel II adjacent to the bulge II on the same section is 45 degrees. Under the fibre channel closure state of socket carousel and socket dog, protruding II on the socket dog inserts in fibre channel I, and the conical surface on protruding II closely pastes and makes fibre channel I seal under the effect of O type sealing washer I23 with the conical surface of I inner wall of fibre channel, and at this moment, fibre channel I all is not corresponding with fibre channel II, all regards as the closure state separately, as shown in figure 4. When the socket and the plug are plugged, the protrusion I on the socket turntable slides along the through groove under the action of plugging force to enable the socket turntable to rotate 45 degrees, so that the optical fiber channel I is aligned with the optical fiber channel II to enable the optical fiber channel to be opened, as shown in fig. 5. On the contrary, when the protrusion I slides to the starting point from the end point of the through groove along the through groove, the socket turntable rotates reversely by 45 degrees to enable the optical fiber channel I and the protrusion II to correspond to each other so as to enable the optical fiber channel I and the optical fiber channel II to be closed.
Seal through O type sealing washer I23 between socket carousel and the socket dog, protruding II and the I cooperation of fibre channel that lie in this O type sealing washer I23 simultaneously, when the socket carousel rotates, because protruding II all is conical surface structure with fibre channel I, the socket dog can separate a segment distance with the socket carousel, nevertheless because receive the spring force effect, the socket carousel is hugged closely all the time to protruding II on the socket dog, the inner chamber that is equipped with fibre jack contact 8 and silicon oil in the final realization socket of effect of O type sealing washer I23 is in sealed environment all the time.
Furthermore, a single key I24 is further arranged on the socket stop block and is used for being matched with a key groove I25 on the socket shell to enable the socket stop block and the socket rotary disc to move in a reciprocating axial linear mode in the socket shell, and the initial position of a protrusion I16 on the socket rotary disc is located at the starting point of the through groove and limited by the front end of a sleeve outside the socket shell, so that the socket rotary disc, the socket stop block, a spring and the like are limited in the socket shell. The parts in the socket shell are sealed through O-shaped sealing rings, such as an O-shaped sealing ring II 26 arranged between the sleeve and the socket rotary disc, an O-shaped sealing ring III 27 arranged between the sleeve and the socket shell and an O-shaped sealing ring V57 arranged between the socket shell and the socket inner shell.
Fig. 6 shows a cross-sectional view of a plug, and the plug connector includes a plug housing 28, a coupling nut 29 fitted outside the plug housing, a plug turn plate 30 fitted inside the plug housing, a plug inner housing 31 and a plug stopper 32 fitted inside the plug turn plate, a pin inner housing 33 fitted inside the plug inner housing, a plug attachment housing 34 connected to the plug housing, and the like, the plug inner housing 31 being located behind the plug stopper 32 with a wave spring 35 fitted therebetween. The centre of the needle mounting inner shell is also provided with a torsional spring 36 for providing elasticity for the rotation of the plug turntable, and two ends of the torsional spring are respectively limited by the plug turntable and the tail end of the needle mounting inner shell. The plug turntables are held by the plug outer retainer 37 so that the plug turntables cannot move axially. Four sets of single-core optical fiber contact pins 38 shown in fig. 6 are fixed in the pin-in inner housing 33 by positioning claws for realizing optical fiber connection by being inserted into the optical fiber jack contact 8 in the socket. An oil bag II 39 is assembled in the inner cavity of the plug accessory shell, silicone oil is filled in the oil bag II, the internal pressure of the plug connector and the external seawater pressure are kept balanced through the change of the volume of the silicone oil in the oil bag II when the connector is plugged in and separated, the assembling mode of the oil bag II is the same as that of the oil bag I in the socket connector, one end of the oil bag II is extruded and assembled between the plug shell and the plug accessory shell, and the other end of the oil bag II is extruded and sealed on the tail shell of the plug accessory shell through a check ring and a gasket, so that the details are not repeated. The tail part of the plug is connected with a four-core deep sea optical cable, and the optical cable is sealed with the plug accessory shell through a stuffing box and is packaged in a vulcanization mode. The parts in the plug shell are sealed by O-shaped sealing rings, such as an O-shaped sealing ring VI 58 arranged between the plug inner shell and the plug turntable and an O-shaped sealing ring VII 59 arranged between the plug shell and the plug inner shell.
The wall surface of the connecting nut outside the plug shell is provided with three elastic clamping hook type locking sheets 40 which are used for being clamped at the tail part 41 of the socket sleeve after being plugged with the socket connector to realize the connection and locking between the socket connector and the socket connector. Under the action of pulling force, the connecting nut can move towards the tail of the plug relative to the locking sheet, so that the conical surface I42 on the connecting nut presses the conical surface II 43 on the locking sheet to realize unlocking. Still be provided with II 44 single keys on the plug inner shell and be used for realizing plug carousel turned angle control with breach 45 cooperation on the plug carousel, when the plug carousel rotates and makes II single keys move to the other end from breach one end, should be able to make the fibre channel IV on the plug carousel and fibre contact pin contact well to be aligned, should be able to make fibre channel IV and fibre contact pin contact not correspond when the plug carousel rotates backward. Two protrusions III 46 at the front end of the plug turntable are matched with two grooves 47 on the socket turntable when the head seat is plugged, so that the socket turntable drives the plug turntable to rotate synchronously. The protrusion III 46 and the groove 47 shown in the drawings are both semicircular, and in other embodiments, the protrusion III 46 and the groove 47 can be in other shapes, but the protrusion III 46 and the groove 47 need to be in the same shape and fit with each other.
The sealing mode between the socket turntable and the socket stop block is the same, and a conical protrusion IV 49 is arranged between two adjacent optical fiber channels III 48 on the plug stop block and is used for being matched with an optical fiber channel IV 50 on the plug turntable to close the optical fiber channel IV; the mating end of the fiber stub contact 38 fits into the fiber channel iii 48, and the fiber stub contact is not shown in fig. 9, see fig. 6 in particular. The inner wall of the optical fiber channel IV is also in a conical surface structure, so that the diameter of one surface, adjacent to the plug stop block, of the optical fiber channel IV is larger than that of the other surface. And under the closed state of the optical fiber channel of the plug, the bulges IV 49 are inserted into the optical fiber channel IV to ensure that the optical fiber contact pin contact part in the optical fiber channel III does not correspond to the optical fiber channel IV, and an O-shaped sealing ring IV 51 embedded into a groove on the end face of the plug stop block is arranged on the periphery of each bulge IV for further sealing between the plug turntable and the plug stop block. When the head seat is plugged, the semicircular bulge III 46 on the plug is matched with the semicircular groove 47 on the socket, so that the socket turntable drives the plug turntable to rotate by the same angle (45 degrees), the optical fiber channel IV is aligned with the optical fiber contact pin contact element and is aligned with the optical fiber channel I and the optical fiber channel II in the socket, and the opposite plugging of the optical fiber contact pin contact element and the optical fiber jack contact element is realized. When the plug turntable rotates, the protrusion IV and the optical fiber channel IV are both in conical surface structures, the plug stop block can be separated from the plug turntable by a small distance, but the protrusion IV on the plug stop block is always tightly attached to the plug turntable under the elastic action of the rear corrugated spring 35, and the effect of the O-shaped sealing ring IV 51 embedded into the groove on the end face of the plug stop block on the periphery of the protrusion IV finally realizes that the inner cavity, in which the optical fiber contact pin contact element and the silicon oil are arranged, in the plug connector is always in a sealed environment.
The principle and the process of the connector assembly head seat pair plugging of the invention are as follows:
fig. 11 is a schematic diagram showing a non-plugging state of the connector assembly according to the present invention, at this time, the respective turntables of the plug and the receptacle are in an initial state, the optical fiber channels of both are not opened, and when plugging, the convex key 52 on the receptacle ferrule cooperates with the key groove ii 53 on the plug connection nut to guide the plugging and realize accurate positioning of plugging, so as to ensure that the optical fiber channel i and the optical fiber channel iv are aligned and plugged. Fig. 12 is a schematic view showing a state that the plug turntable and the socket turntable are aligned and start to be inserted, and the outer wall surface of the insertion end of the plug turntable and the inner wall surface of the insertion end of the socket turntable are both conical surfaces, which is beneficial to better and faster draining of surrounding water. When the connector is further inserted, under the action of inserting force, the protrusion I on the socket rotary disc slides along the through groove to enable the socket rotary disc and the socket stop block to move towards the tail of the socket, so that the outer circumferential conical surface of the inserting end of the plug rotary disc firstly passes through the O-shaped sealing ring II 26 at the front end of the socket and is sealed, and the connector is sealed inside and outside in the inserting process. The plug and the socket tail accessory shell are respectively provided with the drain hole 56, so that water in and out of water outside the oil bag I and the oil bag II can be conveniently discharged and discharged when the volumes of the oil bag I and the oil bag II in the connector are changed, the internal and external pressure balance of the connector can be always kept, and the risk of sealing failure is reduced. When the protrusion I slides to the end position of the through groove, the optical fiber channel I and the optical fiber channel II are aligned, due to the matching of the semicircular protrusion III 46 and the semicircular groove 47, the socket turntable drives the plug turntable to synchronously rotate, so that the optical fiber channel IV is aligned with the optical fiber contact pin, because the optical fiber channel II is aligned with the optical fiber contact hole all the time, the optical fiber channel I and the optical fiber channel IV are aligned all the time in the inserting and combining process, and finally, after the inserting and combining are in place, the optical fiber contact pin, the optical fiber channel IV, the optical fiber channel I, the optical fiber channel II and the optical fiber contact hole are aligned all the time, the optical fiber contact pin and the optical fiber contact hole are in butt joint, and meanwhile, three.
The connector separation process is opposite to the opposite insertion process, the plug connecting nut is pulled backwards firstly, the conical surface II 43 on the locking sheet clamping hook is lifted up from the tail end of the socket sleeve by the connecting nut under the action of the conical surface I42 on the connecting nut, then the plug is continuously pulled out to realize separation, and the socket rotary disc rotates in the opposite direction along the through groove under the action of the rear end spring 9 and moves linearly to enable the optical fiber channel I and the optical fiber channel II to be automatically closed. The plug turntable rotates around under the elasticity of the torsion spring, and the optical fiber channel IV and the optical fiber channel III are synchronously closed.
Therefore, in the whole process of plugging and separating the connectors, the inner cavity provided with the optical fiber jack contact element and the silicone oil in the socket connector and the inner cavity provided with the optical fiber pin contact element and the silicone oil in the plug connector are always in a sealed state, and external water bodies and the like cannot influence the connectors when the connectors are plugged and pulled underwater. Simultaneously, because the effect of oil pocket I and oil pocket II makes the interior external pressure of connector keep balance all the time, so can insert and draw in arbitrary water depths under sealed effectual circumstances.
The attached drawings are illustrated by taking 4 jack contact elements, 4 pin contact elements, 4O-shaped seal rings I23 and four O-shaped seal rings IV as examples, in this case, the rotation angle degree of the socket turntable is 45 degrees, but the invention is not limited to four-core pin jacks, the rotation angle degree of the socket turntable is not limited to 45 degrees, in other cases, as long as the numbers of the optical fiber channel I, the optical fiber channel II, the bulge II, the optical fiber channel III, the optical fiber channel IV, the bulge IV, the optical fiber jack contact elements and the optical fiber pin contact elements are equal, and the rotation of the socket turntable when the bulge I slides from the starting point to the ending point along the through groove can ensure that the optical fiber channel I is aligned with the optical fiber channel II from the beginning through the rotation corresponding to the bulge II and simultaneously drives the plug turntable to rotate so that the optical fiber channel IV is aligned with the optical fiber pin contact elements, and can ensure that the optical fiber channel, And closing the optical fiber channel II and the optical fiber channel IV.
Fig. 2 shows three protrusions i and three through grooves, but the present invention is not limited to this, and in the case of the four-core pin jack shown in the drawing, four through grooves or five through grooves or two through grooves may be used, and the number of the protrusions i is equal to the number of the through grooves, and the opening or closing of the optical fiber channel i, the optical fiber channel ii, and the optical fiber channel iv can be realized by the degree of circumferential rotation of the receptacle turntable when the protrusions i slide along the through grooves.
The specific structure of the embodiment of the socket of the present invention is the same as the socket structure in the above connector assembly embodiments, and the details are not repeated herein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical spirit of the present invention are still within the technical scope of the present invention without departing from the technical scope of the present invention.
Claims (10)
1. An underwater plug optical fiber connector socket comprises a socket shell, a sleeve assembled outside the socket shell and a socket accessory shell connected with the socket shell, and is characterized in that a socket rotary disc, a socket stop block and a socket inner shell are sequentially assembled in the socket shell from front to back, an accommodating hole inner shell used for fixing an optical fiber jack contact element is fixed in the socket inner shell, and the optical fiber jack contact element is always aligned with an optical fiber channel II on the socket stop block; a space is reserved between the socket inner shell and the socket stop block so as to facilitate the axial movement of the socket stop block and the socket rotary table in the socket shell, and a spring is assembled on the periphery of the socket inner shell and used for providing elastic force for the movement of the socket rotary table and the socket stop block; the outer circumference of the socket turntable is provided with a protrusion I which can slide along a through groove on the socket shell, so that the socket turntable can rotate while moving axially; in the process that the protrusion I slides from the starting point of the through groove to the end point of the through groove along the through groove, the optical fiber channel I on the socket rotary table is gradually aligned with the optical fiber channel II on the socket stop block, so that the optical fiber channel of the socket is opened; the protrusion I slides to the starting point of the through groove from the end point of the through groove along the through groove, and the optical fiber channel I and the optical fiber channel II are staggered to close the optical fiber channel of the socket.
2. The underwater pluggable optical fiber connector socket according to claim 1, wherein an oil bag i is assembled in an inner cavity of the socket accessory housing, the oil bag i is filled with silicone oil, a drain hole is further formed in the socket accessory housing, and when the connector is plugged in and separated from each other, water outside the oil bag i enters or is drained through the drain hole, so that the volume of the silicone oil inside the oil bag i is changed, and the internal pressure of the socket connector is kept balanced with the external seawater pressure all the time.
3. The underwater pluggable optical fiber connector socket as claimed in claim 1, wherein the socket stop is further provided with a single key i for cooperating with a key groove i on the socket housing so that the socket stop and the socket turntable can reciprocate linearly in the socket housing.
4. The underwater pluggable optical fiber connector receptacle of claim 1, wherein the inner wall surface of the mating end of the receptacle turntable is a tapered surface.
5. The underwater pluggable optical fiber connector socket according to claim 1, wherein the inner wall of the optical fiber channel i is a tapered surface so that one surface of the optical fiber channel i adjacent to the socket stop block has a large diameter and the other surface of the optical fiber channel i adjacent to the socket stop block has a small diameter, and a protrusion ii having a tapered surface is disposed between two adjacent optical fiber channels ii on the socket stop block and adapted to the optical fiber channel i so as to close the optical fiber channel i; when the socket turntable rotates, the bulge II is always tightly attached to the socket turntable under the action of the spring; when protruding I was located logical groove starting point position, protruding II inserted in fibre channel I and made fibre channel I all be in the closed condition with fibre channel II, and protruding II peripheries still install O type sealing washer I and make further sealed between socket carousel and the socket dog.
6. An underwater plug optical fiber connector assembly comprises a socket, wherein the socket comprises a socket shell, a sleeve assembled outside the socket shell and a socket accessory shell connected with the socket shell, and is characterized in that a socket rotary disc, a socket stop block and a socket inner shell are sequentially assembled in the socket shell from front to back; a space is reserved between the socket inner shell and the socket stop block so as to facilitate the axial movement of the socket stop block and the socket rotary table in the socket shell, and a spring is assembled on the periphery of the socket inner shell and used for providing elastic force for the movement of the socket rotary table and the socket stop block; the outer circumference of the socket turntable is provided with a protrusion I which can slide along a through groove on the socket shell, so that the socket turntable can rotate while moving axially; in the process that the protrusion I slides from the starting point of the through groove to the end point of the through groove along the through groove, the optical fiber channel I on the socket rotary table is gradually aligned with the optical fiber channel II on the socket stop block, so that the optical fiber channel of the socket is opened; the protrusion I slides to the starting point of the through groove from the end point of the through groove along the through groove, and the optical fiber channel I and the optical fiber channel II are staggered to close the optical fiber channel of the socket.
7. The underwater pluggable optical fiber connector assembly as claimed in claim 6, wherein the oil bag i is assembled in the inner cavity of the socket accessory housing, the oil bag i is filled with silicone oil, the socket accessory housing is further provided with a water drain hole, and when the connector is plugged and separated, water outside the oil bag i enters or is drained through the water drain hole, so that the volume of the silicone oil inside the oil bag i is changed, and the internal pressure of the socket connector is always kept balanced with the external seawater pressure.
8. The underwater pluggable optical fiber connector assembly of claim 6, wherein the socket stop is further provided with a single key i for cooperating with a key groove i of the socket housing to enable the socket stop and the socket dial to reciprocate linearly in the socket housing.
9. The underwater pluggable optical fiber connector assembly of claim 6, wherein the inner wall surface of the mating end of the receptacle turret is tapered.
10. The underwater pluggable optical fiber connector assembly as claimed in claim 6, wherein the inner wall of the optical fiber channel i is a tapered surface so that one surface of the optical fiber channel i adjacent to the socket stop has a large diameter and the other surface has a small diameter, and a protrusion ii having a tapered surface is disposed between two adjacent optical fiber channels ii on the socket stop and adapted to the optical fiber channel i so as to close the optical fiber channel i; when the socket turntable rotates, the bulge II is always tightly attached to the socket turntable under the action of the spring; when protruding I was located logical groove starting point position, protruding II inserted in fibre channel I and made fibre channel I all be in the closed condition with fibre channel II, and protruding II peripheries still install O type sealing washer I and make further sealed between socket carousel and the socket dog.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934332.XA CN110658592A (en) | 2019-09-29 | 2019-09-29 | Underwater plugging optical fiber connector socket and assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934332.XA CN110658592A (en) | 2019-09-29 | 2019-09-29 | Underwater plugging optical fiber connector socket and assembly thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110658592A true CN110658592A (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910934332.XA Pending CN110658592A (en) | 2019-09-29 | 2019-09-29 | Underwater plugging optical fiber connector socket and assembly thereof |
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| CN (1) | CN110658592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116594124A (en) * | 2023-05-31 | 2023-08-15 | 科汉同盛(武汉)科技有限公司 | Optical transceiver and optical transceiver plug mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003931A1 (en) * | 1999-10-14 | 2002-01-10 | Cairns James L. | Wet mateable connector |
| US9077099B1 (en) * | 2014-03-05 | 2015-07-07 | Teledyne Instruments, Inc. | Harsh environment connector with rotating end seal assembly |
| CN106532374A (en) * | 2016-11-16 | 2017-03-22 | 中国电子科技集团公司第八研究所 | Photoelectric underwater plugging connector |
| CN210775915U (en) * | 2019-09-29 | 2020-06-16 | 中航光电科技股份有限公司 | Underwater plugging optical fiber connector socket and assembly thereof |
-
2019
- 2019-09-29 CN CN201910934332.XA patent/CN110658592A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020003931A1 (en) * | 1999-10-14 | 2002-01-10 | Cairns James L. | Wet mateable connector |
| US9077099B1 (en) * | 2014-03-05 | 2015-07-07 | Teledyne Instruments, Inc. | Harsh environment connector with rotating end seal assembly |
| CN106532374A (en) * | 2016-11-16 | 2017-03-22 | 中国电子科技集团公司第八研究所 | Photoelectric underwater plugging connector |
| CN210775915U (en) * | 2019-09-29 | 2020-06-16 | 中航光电科技股份有限公司 | Underwater plugging optical fiber connector socket and assembly thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116594124A (en) * | 2023-05-31 | 2023-08-15 | 科汉同盛(武汉)科技有限公司 | Optical transceiver and optical transceiver plug mechanism |
| CN116594124B (en) * | 2023-05-31 | 2024-04-26 | 江西山水光电科技股份有限公司 | Optical transceiver and optical transceiver plug mechanism |
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