A kind of joints of optical fibre
Technical field
The present invention relates to the optical fiber splicing device technical field, refer in particular to a kind of joints of optical fibre.
Background technology
Along with the development of the network technology, the joints of optical fibre have obtained increasingly extensive application as a kind of high speed, wideband data communications connectors spare.The existing fiber connector has two kinds, and a kind of is that producer adopts point of fixity glue mode that the optical fiber and the joints of optical fibre are adhesively fixed; Another kind is the field erected joints of optical fibre of maintenance personal; This field erected joints of optical fibre need have the characteristics of easy accessibility; The clamping apparatus that has a mechanical mechanism in the general joints of optical fibre of installing at the scene; Be used for fiber gripper is fixed; When needs are changed optical fiber; Need be with in the traditional field erected joints of optical fibre of the instrument insertion of special use clamping apparatus being strutted, so that optical fiber is taken out replacing.So, traditional field erected joints of optical fibre just need the instrument of a supporting special use when selling, and, when changing, need professional this world to adopt special-purpose instrument to change the outfit, very trouble.
Summary of the invention
The object of the invention is exactly a kind of novel structure is provided, need not specific purpose tool of providing to the weak point of prior art, has just removed the fixing of optical fiber when bonnet is changed optical fiber opening, so that directly change the joints of optical fibre of optical fiber.
Technology contents of the present invention is: a kind of joints of optical fibre include: ferrule assembly and tail-hood, the common formation of tail-hood, connecting rod and slide block one slider-crank mechanism; The slide block activity is plugged between ferrule assembly and the cover plate; When opening tail-hood, thereby change optical fiber with the gap that increases between ferrule assembly and the cover plate through the rotation drive link drive slide block slip of tail-hood; When closing tail-hood, thereby come grip optical fibers with the gap that reduces between ferrule assembly and the cover plate through the rotation drive link drive slide block slip of tail-hood.
Also include inside casing cover and outer frame set, ferrule assembly and cover plate are established fibre clip fixing through shell fragment; One end of connecting rod is articulated on the tail-hood through the second pivot structure activity, and the other end of connecting rod articulates through the link of the 3rd pivot structure and slide block is movable, and the slide block activity is plugged on the corresponding slide rail of outer frame set; Bottom at slide block has projection; On the optical fiber clamping block, have half of chute; On the cover board have other half of chute, during assembling, projection passes in the chute of the movable half of chute that is plugged in the optical fiber clamping block and the other half of chute formation of cover plate behind the groove that inside casing puts; Said chute has wide and narrow portion, wide and projection clearance fit of chute, narrow and projection interference fit of chute; Under the normality, projection is positioned at the wide portion of chute, and optical fiber is fastened between optic fibre channel guide and cover plate by Spring sheet clip; Assembling optical fiber or when changing optical fiber, narrow of chute struts the fiber orientation piece and cover plate makes optical fiber and optic fibre channel guide be in gap state thereby projection slides into.
Another structure is: also include inside casing cover and outer frame set, ferrule assembly and cover plate are established fibre clip fixing through shell fragment; One end of connecting rod is articulated on the tail-hood through the second pivot structure activity, and the other end of connecting rod articulates through the link of the 3rd pivot structure and slide block is movable, and the connection plate activity at slide block middle part is plugged on the corresponding slide rail of inside casing cover; Below the connection plate of slide block, have projection, on the optical fiber clamping block, have half of chute, on the cover board have other half of chute, during assembling, projection passes behind the groove of inside casing cover sliding rail rear end in the movable chute that is plugged in optical fiber clamping block and cover plate formation; Said chute has wide and narrow portion, wide and projection clearance fit of chute, narrow and projection interference fit of chute; Under the normality, projection is positioned at the wide portion of chute, and optical fiber is fastened between optic fibre channel guide and cover plate by Spring sheet clip; Assembling optical fiber or when changing optical fiber, narrow of chute struts the fiber orientation piece and cover plate makes optical fiber and optic fibre channel guide be in gap state thereby projection slides into.
Said ferrule assembly is formed by connecting ceramic insertion core and optical fiber clamping block, and ferrule assembly inserts the cavity internal fixation of inside casing cover, and the outer frame set socket is fixed on the head of inside casing cover, and tail-hood is articulated in the afterbody of inside casing cover through the first pivot structure activity; On a plane of optical fiber clamping block, have the optic fibre channel guide that aligns with the core hole of ceramic insertion core, on the plane of said optical fiber clamping block, be provided with and be used for the cover plate of pressed fiber through Spring sheet clip.
Said first pivot structure comprises the rotating shaft and the corresponding axis hole that is opened in the tail-hood both sides that is located at inside casing cover both sides; Said second pivot structure comprises the rotating shaft and the corresponding axis hole that is opened in connecting rod one end that is located at tail-hood surface groove both sides; Said the 3rd pivot structure comprises the rotating shaft and the corresponding axis hole that is opened in the connecting rod other end that is located at the slide block link.
Said ferrule assembly is pressed in the optical fiber clamping block by ceramic insertion core and optical fiber clamping block integrated injection molding or ceramic insertion core interference.
Between narrow of wide of said chute and chute is circular arc or oblique angle transition.
Said half of chute that on the optical fiber clamping block, has and the other half of chute that on the cover board has are symmetrical.
Have on said optical fiber clamping block and the cover plate and be convenient to the clip slot that Spring sheet clip is established.
After adopting said structure; When needs are changed optical fiber; Open the tail-hood connecting rod that just can link; Thereby drive the slide rail reach that slide block perhaps puts along inside casing along the slide rail on the outer frame set; Thereby; The elastic force that projection under the slide block overcomes shell fragment struts fiber orientation piece and cover plate; Optical fiber just can overlap the rear portion extraction from inside casing like this; The optical fiber that more renews is inserted in the optic fibre channel guide; Again tail-hood is rotated and reset downwards; Tail-hood drivening rod and slide block slide backward, and the projection under the slide block is positioned at the wide portion of chute again, fiber orientation piece and cover plate under the effect of shell fragment again grip optical fibers accomplish and to change the outfit.By on can know, novel structure of the present invention, need not specific purpose tool, just can directly change optical fiber opening bonnet, convenient and practical.
Description of drawings
Fig. 1 is the embodiment of the invention one perspective exploded view.
Fig. 2 is the embodiment of the invention two perspective exploded view.
Fig. 3 is a longitudinal profile structural representation of the present invention.
Fig. 4 is a horizontal section structural representation of the present invention.
Fig. 5 is a perspective view of the present invention.
Fig. 6 is a user mode perspective view of the present invention.
Fig. 7 is a user mode longitudinal profile structural representation of the present invention.
Fig. 8 is a slide block perspective view of the present invention.
Fig. 9 is a cover plate perspective view of the present invention.
Figure 10 is a ferrule assembly perspective view of the present invention.
Embodiment
Like Fig. 1, Fig. 3-first embodiment shown in Figure 10; The joints of optical fibre of the present invention; Include: ferrule assembly 10, inside casing cover 20, outer frame set 30 and tail-hood 40; Ferrule assembly 10 is formed by connecting ceramic insertion core 11 and optical fiber clamping block 12; Ferrule assembly 10 inserts the cavity internal fixation of inside casing cover 20; Outer frame set 30 sockets are fixed on the head of inside casing cover 20, and tail-hood 40 is articulated in the afterbody of inside casing cover 20 through the first pivot structure activity; On a plane of optical fiber clamping block 12, have the optic fibre channel guide 121 that aligns with the core hole of ceramic insertion core 11; On the plane of said optical fiber clamping block 12, be folded with and be used for the cover plate 70 of pressed fiber 60 through shell fragment 50; Also include the slide block 80 and connecting rod 90 that are connected between outer frame set 30 and the tail-hood 40; One end of connecting rod 90 is articulated on the tail-hood 40 through the second pivot structure activity; The other end of connecting rod 90 articulates through the link of the 3rd pivot structure and slide block 80 is movable, and slide block 80 activities are plugged on the slide rail 31 of outer frame set 30 correspondences; Has projection 81 in the bottom of slide block 80; On optical fiber clamping block 12, have half of chute 122; On cover plate 70, have other half of chute 71; During assembling, in the chute that the half of chute 122 that projection 81 the groove 21 back activities on the inside casing cover 20 of passing are plugged in optical fiber clamping block 12 and the other half of chute 71 of cover plate 70 form; Said chute has wide 71a, 122a and narrow 71b, 122b, wide 71a of chute, 122a and projection 81 clearance fit, narrow 71b of chute, 122b and projection 81 interference fit; Under the normality, projection 81 is positioned at wide 71a, the 122a of chute, and optical fiber 60 is fixedly clamped between optic fibre channel guide 121 and cover plate 70 by shell fragment 50; When assembling optical fiber 60 or replacing optical fiber 60, narrow 71b, 122b of chute strut fiber orientation piece 122 and cover plate 70 makes optical fiber 60 and optic fibre channel guide 121 be in gap state thereby projection 81 slides into.
Second kind of embodiment of the present invention as shown in Figure 2; A kind of joints of optical fibre; Include: ferrule assembly 10, inside casing cover 20, outer frame set 30 and tail-hood 40; Ferrule assembly 10 is formed by connecting ceramic insertion core 11 and optical fiber clamping block 12; Ferrule assembly 10 inserts the cavity internal fixation of inside casing cover 20; Outer frame set 30 sockets are fixed on the head of inside casing cover 20, and tail-hood 40 is articulated in the afterbody of inside casing cover 20 through the first pivot structure activity; On a plane of optical fiber clamping block 12, have the optic fibre channel guide 121 that aligns with the core hole of ceramic insertion core 11; On the plane of said optical fiber clamping block 12, be folded with and be used for the cover plate 70 of pressed fiber 60 through shell fragment 50; Also include the slide block 80 and connecting rod 90 that are connected between outer frame set 30 and the tail-hood 40; One end of connecting rod 90 is articulated on the tail-hood 40 through the second pivot structure activity; The other end of connecting rod 90 articulates through the link of the 3rd pivot structure and slide block 80 is movable, and connection plate 82 activities at slide block 80 middle parts are plugged on the slide rail 22 of inside casing cover 20 correspondences; Below the connection plate 82 of slide block 80, has projection 81; On optical fiber clamping block 12, have half of chute 122; On cover plate 70, have other half of chute 71; During assembling, in the chute that the half of chute 122 that projection 81 the groove 21 back activities on the inside casing cover 20 of passing are plugged in optical fiber clamping block 12 and the other half of chute 71 of cover plate 70 form; Said chute has wide 71a, 122a and narrow 71b, 122b, wide 71a of chute, 122a and projection 81 clearance fit, narrow 71b of chute, 122b and projection 81 interference fit; Under the normality, projection 81 is positioned at wide 71a, the 122a of chute, and optical fiber 60 is fixedly clamped between optic fibre channel guide 121 and cover plate 70 by shell fragment 50; When assembling optical fiber 60 or replacing optical fiber 60, narrow 71b, 122b of chute strut fiber orientation piece 122 and cover plate 70 makes optical fiber 60 and optic fibre channel guide 121 be in gap state thereby projection 81 slides into.
Said first pivot structure comprises that being located at inside casing overlaps the rotating shaft 23 of 20 both sides and the axis hole 41 that correspondence is opened in tail-hood 40 both sides.
Said second pivot structure comprises the rotating shaft 42 and the corresponding axis hole 91 that is opened in connecting rod 90 1 ends that is located at tail-hood 40 surface groove both sides.
Said the 3rd pivot structure comprises the rotating shaft 83 and the corresponding axis hole 92 that is opened in connecting rod 90 other ends that is located at slide block 80 links.
Said ferrule assembly 10 is pressed in the optical fiber clamping block 12 by ceramic insertion core 11 and optical fiber clamping block 12 integrated injection moldings or ceramic insertion core 11 interference.
Between wide 71a of said chute and narrow the 71b of chute, wide 122a of chute and narrow 122b of chute be circular arc or oblique angle transition.
Said symmetrical at half of chute 122 that has on the optical fiber clamping block 12 and the other half of chute 71 that on cover plate 70, has.
Have on said optical fiber clamping block 12 and the cover plate 70 and be convenient to the clip slot 72 that shell fragment 50 folders are established.
During use; Upwards lift tail-hood 40; Tail-hood 40 upwards rotates around the rotating shaft 23 that inside casing overlaps 20 both sides; One end of drivening rod 90 lifts thereupon; The other end of connecting rod 90 is to reach; Thereby pushing away slide block 80 moves forward along slide rail 31 or the slide rail 22 on inside casing cover 20 on the outer frame set 30; Like this; Projection 81 under the slide block 80 overcomes wide the 71a of the elastic force of shell fragment 50 from chute; 122a moves to narrow 71b of chute; 122b; Strut fiber orientation piece 12 and cover plate 70; Optical fiber 60 just can overlap the extraction of 20 rear portions from inside casing like this; The optical fiber 60 that more renews is inserted in the optic fibre channel guide 121; Again tail-hood 40 is rotated and reset downwards; Tail-hood 40 drivening rods 90 and slide block 80 slide backward; Projection 81 under the slide block 80 is positioned at wide 71a of chute again; 122a, fiber orientation piece 12 and cover plate 70 under the effect of shell fragment 50 again grip optical fibers 60 accomplish and change the outfit.
By on can know, novel structure of the present invention, need not specific purpose tool, just can directly change optical fiber opening bonnet, convenient and practical.