CN201133946Y

CN201133946Y - FC-SC,FC-SC-APC optical fiber rapid splicer

Info

Publication number: CN201133946Y
Application number: CNU2007200404833U
Authority: CN
Inventors: 吕根良
Original assignee: Jiangsu Yute Optics Science & Technology Co Ltd
Current assignee: Jiangsu Yute Optics Science & Technology Co Ltd; Jiangsu Unikit Optical Technology Co Ltd
Priority date: 2007-07-23
Filing date: 2007-07-23
Publication date: 2008-10-15
Anticipated expiration: 2017-07-23

Abstract

The utility model discloses a rapid splicing element of FC-SC and FC-SC-APC fiber, which is pressed in a FC or SC shell (2) by a spring (3) through a spring connecting base (4); a tail shell (8) is arranged at the tail end of the spring connecting base (4) an is enclosed to form an integrative body; a pin (1) is fixed in a pin sleeve (5); a sophisticated and micro-fine guiding and positioning hole (1-1) is arranged in the pin (1); the front end of the pin sleeve (5) is provided with a holding cavity (5-1) of a pressing device; the tail end of the pin sleeve (5) is provided with a large conical cavity (5-3); a V-shaped block (9) and a gland (10) are arranged in the holding cavity (5-1) of the pressing device; a locking screw (7) is connected with the tail end of the pin sleeve (5) to form a locking cavity; a double-cone chuck is arranged in the locking cavity. The rapid splicing element has no inner splicing points and realizes the control of ultra-low insertion loss; the wide-range polishing of the APC slope of 8 degrees reduces the value of return loss when the fiber is connected; and the repeated and recovery use reduces the use cost.

Description

FC-SC, FC-SC-APC optical fibre rapid connection

Technical field

The utility model relates to a kind of coupling arrangement, is specifically related to FC-SC, FC-SC-APC optical fibre rapid connection.

Background technology

At present, Fiber to the home at FTTH, the fiber alignment field of unification of three nets engineering, and being applied to the quick connector that connects of FC-SC, FC-SC-APC does not still have corresponding product, and existing product can not be realized simple, convenient, reliable, the low-cost connection.

Summary of the invention

The purpose of this utility model is: a kind of FC-SC, FC-SC-APC optical fibre rapid connection are provided, not having the ultralow damage of making-breaking point when realizing optical fibre rapid connection connects, simplify the numerous and diverse degree of optical fiber construction work, improve the success ratio of the cold connection of optical fiber, reduce the return loss value significantly, and recyclable reduction use cost.

Technical solution of the present utility model is: the daughter that continues fast is installed in thrust device forms optical fibre rapid connection, thrust device is made of spring, FC or SC housing, spring Connection Block, tail shell, the daughter that continues fast by the spring Connection Block by spring compression in FC or SC housing, the tail shell is installed in spring Connection Block tail end and is packaged into integral body; The described daughter that continues fast is made of guide locating device provided, hold down gag and locking device, wherein, guide locating device providedly constitute by contact pin, Plug pin patch bay sleeve, contact pin be fixed in the Plug pin patch bay sleeve form guide locating device provided, precise fine guide-localization hole is arranged in the contact pin, the Plug pin patch bay barrel forward end is established the hold down gag container cavity, and there is the optical fiber through hole at Plug pin patch bay sleeve middle part, and Plug pin patch bay sleeve tail end has big conical surface chamber and internal thread; Wherein, hold down gag is made of V-block, gland, spring cover, and the optical fiber V type through hole that the surface that V-block contacts with gland has accurate V shape groove to form, V-block and gland are installed in interior being held tightly by the spring cover of hold down gag container cavity of Plug pin patch bay sleeve and form hold down gag; Wherein, locking device is made of lock-screw, bipyramid collet body, the front end of lock-screw has conelet face chamber, form lock chambers on the internal thread of lock-screw by the secondary connection of set nut Plug pin patch bay sleeve tail end, the bipyramid collet body is installed in lock chambers is formed locking device, bipyramid collet body both sides are the large and small conical surface, open one group of locking slot on the large and small conical surface, in the bipyramid collet body is the optical fiber cable hole, the big conical surface chamber of the big cone match Plug pin patch bay sleeve tail end of bipyramid collet body, the little conical surface of bipyramid collet body locks the conelet face chamber of screw front end.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection have precise fine guide-localization hole on contact pin, the tail end in precise fine guide-localization hole is established naked fine guiding taper hole.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, the optical fiber V type through hole that has accurate V shape groove to form on the surface that V-block contacts with gland, there is tape guide awl convex tendon the end of optical fiber V type through hole for V-block optical fiber guiding taper hole, V-block back.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, on the big or small conical surface of bipyramid collet body, establish three locking slots, set the position clamp holder at the afterbody of bipyramid collet body, on the optical fiber cable hole surface of bipyramid collet body, establish back stop slot, the big conical surface chamber of the big cone match Plug pin patch bay sleeve tail end of bipyramid collet body, the little conical surface of bipyramid collet body locks the conelet face chamber of screw.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, the front end of spring Connection Block is established the spring-advance face, and the front end of Plug pin patch bay sleeve is established the spring locating surface.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, the optical fiber through hole of the precise fine guide-localization hole on the contact pin, the optical fiber V type through hole of V-block, Plug pin patch bay sleeve, the optical fiber cable hole of bipyramid collet body are on same axis.

In engineering construction, at first optical fibre rapid connection is packed in the private adapter seat, take off the tail shell; The optical fiber that has stripped by certain specification by certain-length cutting with specific purpose tool then, optical fiber is inserted in the optical fiber cable hole of bipyramid collet body, make naked fibre pass V-block through the optical fiber through hole of Plug pin patch bay sleeve, naked fine head is released from the precise fine guide-localization hole of contact pin, and private adapter guarantees naked fine fixed length protrusion; Then screw lock-screw locking optical fiber crust, cover into V-block with socket wrench specially adapted for it instrument promotion spring again, hold V-block tightly and gland compresses naked fibre by V-block back convex tendon; With portable buffing machine or the special-purpose 8 degree buffing machine polishing fiber sections of simple and easy APC, clean the contact pin surface at last, insert adapter, finish optical fibre rapid connection.

The utlity model has following advantage: one, the inner no splicing point of this optical fibre rapid connection, realize the fibre junction ultra-low loss; Two, the precise fine guide-localization hole high precision guide-localization of ceramic contact pin; Three, hold down gag is held V-block tightly by V-block back convex tendon and gland compresses naked fibre, stops fine head to reverse, and guarantees that fine mirror polish time return loss reaches requirement; Four, the bipyramid collet body multi-angle application of force, firm locking optical fiber crust, protection fibre junction safety is firm; Five, spring thrust device, reliable in structure guarantees optical fiber surface reliably applying in adapter; But six, fiber end face field polish has improved the surface quality of fine head greatly, thereby has reduced the wastage significantly; Seven, 8 degree polished surfaces can be applicable to the APC type and continue fast, are applicable to that FTTH optical fiber is registered one's residence, the unification of three nets engineering, applied range; Eight, the recyclable repeated use of this optical fibre rapid connection reduces use cost; Nine, totally cheap for manufacturing cost, be fit to promote the use of in enormous quantities.

Description of drawings

Fig. 1 is a FC-APC optical fibre rapid connection minor structure synoptic diagram.

Fig. 2 is a SC-APC optical fibre rapid connection minor structure synoptic diagram.

Fig. 3 is Fig. 1,2 bipyramid collet body 3D figure.

Fig. 4 is Fig. 1,2 optical fiber contact pins 3D figure.

Fig. 5 is Fig. 1,2 hold down gag synoptic diagram.

Fig. 6 is the V-block 3D figure of Fig. 5.

Fig. 7 schemes for the 3D that analyses and observe of Fig. 6.

Fig. 8 is Fig. 1,2 spring cover 3D figure.

Fig. 9 is the FC thrust device synoptic diagram of Fig. 1.

Figure 10 is the SC thrust unit synoptic diagram of Fig. 2.

Figure 11 is Fig. 1,2 locking device synoptic diagram.

Figure 12 is the outward appearance 3D cut-open view of Fig. 1.

Figure 13 is the outward appearance 3D cut-open view of Fig. 2.

Among the figure: 1. contact pin, 2.FC or SC housing, 3. spring, 4. spring Connection Block, 5. Plug pin patch bay sleeve, 6. bipyramid collet body, 7. lock-screw, 8. tail shell, 9.V type piece, 10. gland, 11. spring covers, 12. is guide locating device provided, 13. hold down gag, 14. thrust devices, 15. locking devices, 1-1. precise fine guide-localization hole, the naked fine guiding taper hole of 1-2., 4-1. spring-advance face, 5-1. the hold down gag container cavity, 5-2. optical fiber through hole, the big conical surface of 5-3. chamber, 5-4. internal thread, 5-5. spring locating surface, the big conical surface of 6-1., 6-2. the little conical surface, 6-3. locking slot, 6-4. optical fiber cable hole, 6-5. back stop slot, 6-6. locatees clamp holder, 7-1. set nut pair, 7-2. conelet face chamber, the convex tendon of 9-1. tape guide awl, 9-2. optical fiber V type through hole, 9-3. accurate V shape groove, 9-4.V type piece optical fiber guiding taper hole.

Embodiment

Shown in Fig. 1-13, the daughter that continues fast is installed in thrust device 14 forms optical fibre rapid connection, thrust device 14 is made of spring 3, FC or SC housing 2, spring Connection Block 4, tail shell 8, the daughter that continues fast is pressed in the SC plastic inner shell 2 by spring 3 by spring Connection Block 4, and tail shell 8 is installed in spring Connection Block tail end and is packaged into integral body; The described daughter that continues fast is made of guide locating device provided 12, hold down gag 13 and locking device 15, wherein, guide locating device provided 12 are made of contact pin 1, Plug pin patch bay sleeve 5, contact pin 1 is fixed in the Plug pin patch bay sleeve 5 forms guide locating device provided 12, precise fine guide-localization hole 1-1 is arranged in the contact pin 1, Plug pin patch bay sleeve 5 front ends are established hold down gag container cavity 5-1, and there is optical fiber through hole 5-2 at Plug pin patch bay sleeve 5 middle parts, and Plug pin patch bay sleeve 5 tail ends have big conical surface chamber 5-3 and internal thread 5-4; Wherein, hold down gag 13 is made of V-block 9, gland 10, spring cover 11, the optical fiber V type through hole 9-2 that the surface that V-block 9 contacts with gland 10 has accurate V shape groove 9-3 to form, V-block 9 and gland 10 are installed in interior being held tightly by spring cover 11 of hold down gag container cavity 5-1 of Plug pin patch bay sleeve 5 and form hold down gag 13; Wherein, locking device 15 is by lock-screw 7, bipyramid collet body 6 constitutes, the front end of lock-screw 7 has conelet face chamber 7-2, lock-screw 7 is gone up the formation lock chambers by the internal thread 5-4 that secondary 7-1 of set nut connects Plug pin patch bay sleeve 5 tail ends, bipyramid collet body 6 is installed in lock chambers is formed locking device 15, bipyramid collet body 6 both sides are big, conelet face 6-1,6-2, greatly, conelet face 6-1, open one group of locking slot 6-3 on the 6-2, in the bipyramid collet body 6 is optical fiber cable hole 6-4, the big conical surface 6-1 of bipyramid collet body 6 cooperates the big conical surface chamber 5-3 of Plug pin patch bay sleeve 5 tail ends, and the conelet face 6-2 of bipyramid collet body 6 locks the conelet face chamber 7-2 of screw 7 front ends.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection as shown in Figure 4, have precise fine guide-localization hole 1-1 on contact pin 1, the tail end of precise fine guide-localization hole 1-1 is established naked fine guiding taper hole 1-2.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, shown in Fig. 5,6,7, the optical fiber V type through hole 9-2 that has accurate V shape groove 9-3 to form on the surface that V-block 9 contacts with gland 10, the end of optical fiber V type through hole 9-2 is V-block 9 optical fiber guiding taper hole 9-4, and there is tape guide awl convex tendon 9-1 at V-block 9 backs.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, as shown in Figure 3, on big or small conical surface 6-1, the 6-2 of bipyramid collet body 6, establish three locking slot 6-3, set position clamp holder 6-6 at the afterbody of bipyramid collet body 6, on the 6-4 surface, optical fiber cable hole of bipyramid collet body 6, establish back stop slot 6-5, the big conical surface 6-1 of bipyramid collet body 6 cooperates the big conical surface chamber 5-3 of Plug pin patch bay sleeve 5 tail ends, and the conelet face 6-2 of bipyramid collet body 6 locks the conelet face chamber 7-2 of screw 7.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, shown in Fig. 9,10, the front end of spring Connection Block 4 is established spring-advance face 4-1, and the front end of Plug pin patch bay sleeve is established spring locating surface 5-5.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection, the optical fiber cable hole 6-4 of the optical fiber V type through hole 9-2 of the precise fine guide-localization hole 1-1 on the contact pin 1, V-block 9, the optical fiber through hole 5-2 of Plug pin patch bay sleeve 5, bipyramid collet body 6 is on same axis.

In engineering construction, at first optical fibre rapid connection is packed in the private adapter seat, take off tail shell 8; The optical fiber that has stripped by certain specification by certain-length cutting with specific purpose tool then, optical fiber is inserted among the optical fiber cable hole 6-4 of bipyramid collet body 6, make naked fibre pass V-block 9 through the optical fiber through hole 5-2 of Plug pin patch bay sleeve 5, naked fine head is released from the precise fine guide-localization hole 1-1 of contact pin 1, and private adapter guarantees naked fine fixed length protrusion; Then screw lock-screw 7 locking optical fiber crusts, promote spring with the socket wrench specially adapted for it instrument again and overlap 11 and enter V-block 9, hold V-block 9 tightly and gland 10 compresses naked fibre by V-block 9 back convex tendon 9-1; With portable buffing machine or the special-purpose 8 degree buffing machine polishing fiber sections of simple and easy APC, clean the contact pin surface at last, insert adapter, finish optical fibre rapid connection.

FC-SC of the present utility model, FC-SC-APC optical fibre rapid connection have following technical parameter: insert loss and be lower than 0.1dB; The tensile strength of optical fiber crust is greater than 1000 grams; Thermal stability guarantees operate as normal in-40 to 80 degrees centigrade of scopes; Return loss is greater than 60dB.

Claims

1.FC-SC, FC-SC-APC optical fibre rapid connection, it is characterized in that: the daughter that continues fast is installed in thrust device forms optical fibre rapid connection, thrust device (14) is made of spring (3), FC or SC housing (2), spring Connection Block (4), tail shell (8), the daughter that continues fast is pressed in FC or the SC housing (2) by spring (3) by spring Connection Block (4), and tail shell (8) is installed in spring Connection Block (4) tail end and is packaged into integral body; The described daughter that continues fast is made of guide locating device provided (12), hold down gag (13) and locking device (15), wherein, guide locating device provided (12) are made of contact pin (1), Plug pin patch bay sleeve (5), contact pin (1) is fixed on forms guide locating device provided (12) in the Plug pin patch bay sleeve (5), precise fine guide-localization hole (1-1) is arranged in the contact pin (1), Plug pin patch bay sleeve (5) front end is established hold down gag container cavity (5-1), there is optical fiber through hole (5-2) at Plug pin patch bay sleeve (5) middle part, and Plug pin patch bay sleeve (5) tail end has big conical surface chamber (5-3) and internal thread (5-4); Wherein, hold down gag (13) is made of V-block (9), gland (10), spring cover (11), the optical fiber V type through hole (9-2) that the surface that V-block (9) contacts with gland (10) has accurate V shape groove (9-3) to form, V-block (9) and gland (10) are installed in interior being held tightly by spring cover (11) of hold down gag container cavity (5-1) of Plug pin patch bay sleeve (5) and form hold down gag (13); Wherein, locking device (15) is by lock-screw (7), bipyramid collet body (6) constitutes, the front end of lock-screw (7) has conelet face chamber (7-2), lock-screw (7) is gone up the formation lock chambers by the internal thread (5-4) that set nut pair (7-1) connects Plug pin patch bay sleeve (5) tail end, bipyramid collet body (6) is installed in lock chambers is formed locking device (15), bipyramid collet body (6) both sides are big, the little conical surface (6-1,6-2), establish optical fiber cable hole (6-4) in the bipyramid collet body (6), the big conical surface (6-1) of bipyramid collet body (6) cooperates the big conical surface chamber (5-3) of Plug pin patch bay sleeve (5) tail end, and the little conical surface (6-2) of bipyramid collet body (6) locks the conelet face chamber (7-2) of screw (7) front end.

2. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection is characterized in that: precise fine guide-localization hole (1-1) is arranged on contact pin (1), and the tail end in precise fine guide-localization hole (1-1) is established naked fine guiding taper hole (1-2).

3. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection, it is characterized in that: the optical fiber V type through hole (9-2) that has accurate V shape groove (9-3) to form on the surface that V-block (9) contacts with gland (10), the end of optical fiber V type through hole (9-2) is V-block (a 9) optical fiber guiding taper hole (9-4), and there is tape guide awl convex tendon (9-1) at V-block (9) back.

4. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection, it is characterized in that: bipyramid collet body (6) both sides are the big or small conical surface (6-1,6-2), establish three locking slots (6-3) on the big or small conical surface (6-1,6-2) of bipyramid collet body (6).

5. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection is characterized in that: set position clamp holder (6-6) at the afterbody of bipyramid collet body (6).

6. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection is characterized in that: establish back stop slot (6-5) on surface, the optical fiber cable hole of bipyramid collet body (6) (6-4).

7. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection is characterized in that: the front end of spring Connection Block (4) is established spring-advance face (4-1).

8. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection is characterized in that: the front end of Plug pin patch bay sleeve (5) is established spring locating surface (5-5).

9. FC-SC according to claim 1, FC-SC-APC optical fibre rapid connection is characterized in that: the optical fiber through hole (5-2) of the precise fine guide-localization hole (1-1) on the contact pin (1), the optical fiber V type through hole (9-2) of V-block (9), Plug pin patch bay sleeve (5), the optical fiber cable hole (6-4) of bipyramid collet body (6) are on same axis.