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 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, in order to 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 the professional person to adopt special-purpose instrument to change the outfit, very trouble.
Summary of the invention
Purpose of the present invention is exactly a kind of novel structure is provided, need not specific purpose tool of providing at the deficiencies in the prior art part, has just removed the fixing of optical fiber when bonnet is changed optical fiber opening, in order to directly change the joints of optical fibre of optical fiber.
Technical solution of the present invention is: a kind of joints of optical fibre include: ferrule assembly and tail-hood, and tail-hood, connecting rod, slide block constitute a slider-crank mechanism jointly; Sliding sleeve on the described slide block is set in ferrule assembly and cover plate outside; When opening tail-hood, thereby drive the sliding sleeve slip so that fluff moving between ferrule assembly and the cover plate so that the optical fiber turnover by the rotation drive link of tail-hood; When closing tail-hood, thereby drive the sliding sleeve slip so that ferrule assembly and cover plate grip optical fibers by the rotation drive link of tail-hood.
Also include inside casing cover and outer frame set, an end of described connecting rod is articulated on the tail-hood by the second pivot structure activity, and the other end of connecting rod articulates by 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 inside casing cover; Sliding sleeve is positioned at the bottom of slide block, and during assembling, sliding sleeve is socketed on optical fiber clamping block and the cover plate after passing the groove that inside casing puts; Outside surface one end of described cover plate has chucking projection, and under the normality, sliding sleeve is socketed on the chucking projection of outside surface of cover plate, and optical fiber clamping block and the cover plate of sliding sleeve and ferrule assembly rear end are in the interference wringing fit; Assembling optical fiber or when changing optical fiber, sliding sleeve slides into the other end of the outside surface of cover plate from the chucking protruding end of the outside surface of cover plate, and optical fiber clamping block and the cover plate of sliding sleeve and ferrule assembly rear end are in the gap loose fit.
Described ferrule assembly is formed by connecting by ceramic insertion core and optical fiber clamping block, and ferrule assembly inserts interior the fixing of cavity 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 by the first pivot structure activity; Have the optic fibre channel guide that aligns with the core hole of ceramic insertion core on the lock pin plane of optical fiber clamping block, the lock pin plane of described optical fiber clamping block is the corresponding cover plate that pressed fiber is arranged also.
Described first pivot structure comprises 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.
Described second pivot structure comprises 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.
Described the 3rd pivot structure comprises rotating shaft and the corresponding axis hole that is opened in the connecting rod other end that is located at the slide block link.
Described 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.
Be circular arc or oblique angle transition between the front end of the upper surface of described chucking projection and cover plate.
Described optical fiber clamping block and cover plate are respectively equipped with to prevent screens and the draw-in groove of cover plate play mutually on the corresponding plane.
After adopting said structure, when needs are changed optical fiber, open the tail-hood connecting rod that just can link, thereby drive sliding sleeve slides into the upper surface of cover plate from the chucking projection of the upper surface of cover plate front end, sliding sleeve and optical fiber clamping block and cover plate are in the gap loose fit, 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 sliding sleeve slide backward, sliding sleeve slides on the chucking projection of upper surface of cover plate again, and sliding sleeve and optical fiber clamping block and cover plate are in the interference wringing fit fixedly to be finished fiber gripper and change the outfit.As from the foregoing, 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 perspective exploded view of the present invention.
Fig. 2 uses the state perspective view for the present invention.
Fig. 3 is perspective view of the present invention.
Horizontal section structural representation under Fig. 4 normality of the present invention.
Horizontal section structural representation when Fig. 5 the present invention changes optical fiber.
Embodiment
Shown in Fig. 1-5, a kind of joints of optical fibre of the present invention, include: ferrule assembly 10, inside casing cover 20, outer frame set 30 and tail-hood 40, also include the slide block 50 and the connecting rod 60 that are connected between outer frame set 30 and the tail-hood 40, one end 61 of connecting rod 60 is articulated on the tail-hood 40 by the second pivot structure activity, the other end 62 of connecting rod 60 is by the 3rd pivot structure and the movable pivot joint of the link of slide block 50, and it is the narrow groove that inside casing overlaps 20 back that slide block 50 activities are plugged on the slide rail 24 that inside casing overlaps 20 correspondences; Have sliding sleeve 51 in the bottom of slide block 50, during assembling, sliding sleeve 51 is socketed on optical fiber clamping block 12 and the cover plate 70 after passing groove 21 on the inside casing cover 20; Outside surface 71 1 ends of described cover plate 70 have chucking projection 72, and under the normality, sliding sleeve 51 is socketed on the chucking projection 72 of outside surface 71 of cover plate 70, and sliding sleeve 51 is in the interference wringing fit with optical fiber clamping block 12 and cover plate 70; Assembling optical fiber 80 or when changing optical fiber 80, sliding sleeve 51 slides into the other end of the outside surface 71 of cover plate 70 from chucking projection 72 ends of the outside surface 71 of cover plate 70, and sliding sleeve 51 is in the gap loose fit with optical fiber clamping block 12 and cover plate 70.
Described ferrule assembly 10 is formed by connecting by ceramic insertion core 11 and optical fiber clamping block 12, it is interior fixing that ferrule assembly 10 inserts the cavity 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 by the first pivot structure activity; Have the optic fibre channel guide 121 that aligns with the core hole of ceramic insertion core 11 on the lock pin plane of optical fiber clamping block 12, the lock pin plane of described optical fiber clamping block 12 is the corresponding cover plate 70 that pressed fiber 80 is arranged also.
Described first pivot structure comprises that being located at inside casing overlaps the rotating shaft 22 of 20 both sides and the axis hole 41 that correspondence is opened in tail-hood 40 both sides.
Described second pivot structure comprises rotating shaft 42 and the corresponding axis hole 61 that is opened in connecting rod 60 1 ends that is located at tail-hood 40 surface groove both sides.
Described the 3rd pivot structure comprises rotating shaft 52 and the corresponding axis hole 62 that is opened in connecting rod 60 other ends that is located at slide block 50 links.
Described 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.
Be circular arc or oblique angle transition between the front end of the upper surface 71 of described chucking projection 72 and cover plate 70.
Described optical fiber clamping block 12 and cover plate 70 is respectively equipped with to prevent screens a and the draw-in groove b of cover plate 70 plaies mutually on the corresponding plane.
During use, upwards lift tail-hood 40, tail-hood 40 upwards rotates around the rotating shaft 22 that inside casing overlaps 20 both sides, one end of drivening rod 60 lifts thereupon, the other end of connecting rod 60 is to reach, thereby driving slide block 50 moves forward along the slide rail 24 on the inside casing cover 20, simultaneously, sliding sleeve 51 slides into the front end of the outside surface 71 of cover plate 70 from the chucking projection 72 of the outside surface 71 of cover plate 70, sliding sleeve 51 is in the gap loose fit with optical fiber clamping block 72 and cover plate 70, optical fiber 80 just can overlap the extraction of 20 rear portions from inside casing like this, the optical fiber 80 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 60 and sliding sleeve 51 slide backward, sliding sleeve 51 slides on the chucking projection 72 of outside surface 71 of cover plate 70 again, and sliding sleeve 51 and optical fiber clamping block 12 and cover plate 70 are in the interference wringing fit and optical fiber 80 is fixedly clamped to finish changes the outfit.
As from the foregoing, novel structure of the present invention, need not specific purpose tool, just can directly change optical fiber opening bonnet, convenient and practical.