CN102338911B

CN102338911B - Optical fiber cold splice

Info

Publication number: CN102338911B
Application number: CN 201110339135
Authority: CN
Inventors: 李志宏; 关梦琳; 周阳; 张绪
Original assignee: NANJING PUTIAN TELEGE INTELLIGENT BUILDING Ltd
Current assignee: NANJING PUTIAN TELEGE INTELLIGENT BUILDING Ltd
Priority date: 2011-11-01
Filing date: 2011-11-01
Publication date: 2013-04-24
Anticipated expiration: 2031-11-01
Also published as: CN102338911A

Abstract

The invention relates to an optical fiber cold splice comprising a base, as well as a clamping device for clamping two optical fibers after the end surfaces of the two optical fibers are jointed and a fixing device for fixing the outer skins of the optical fibers after the optical fibers are inserted in place, which are arranged on the base, wherein the clamping device comprises a positioning needle, a V-shaped positioning part, a pressure plate, a steel ball, a reed with a buckle and the reed with a hole; and the fixing device comprises a gland bush and a 0.9 wire clamp, and the 0.9 wire clamp can enable the cold splice to be compatible with the butt joint of an optical cable covered with a rubber wire and a 0.9mm optical cable. The optical fiber cold splice has the advantages that the cold splice breaks through the traditional structure, the structure is simple and reliable, the service life is long, the cold splice can be used repeatedly, and the cost is further reduced.

Description

A kind of cold splice for optical fibers

Technical field

The present invention is a kind of coupling arrangement for the fiber alignment installation, and what be specifically related to is a kind of cold splice for optical fibers.Belong to the optical fiber splicing device technical field.

Background technology

The method of traditional fixedly covered wire cable is a kind of to be to realize that at the solid fixture block of crust termination another kind is by threaded tapered sleeve locking cone pawl by fastening, and the contraction by the cone pawl is fixing crust directly.Waste time and energy when in crust fixing the crust termination being installed, and the termination part is little, manufacture difficulty is large, and cost is high, and is easy to lose in construction; And the contraction of cone pawl need to screw tapered sleeve, screws that the optical cable crust spurs easily in the process, affect success ratio, and the running time is long.

At present, the cold joint connector product that is used for fiber alignment mainly adopts the mode fixed fiber of V-type groove and briquetting compression, thereby the action of hold down gag is to reduce with the slit pressed fiber of V-type groove and realize two fiber alignments by pressing down briquetting, in this kind mode, the processing of V-type groove belongs to inside dimension, and size is minimum, machining precision is difficult to control, detection difficulty is large, cause easily the docking index to descend, and cost is higher, needs when wearing fibre V-type groove and briquetting are separated, compress again briquetting, complex operation after wearing fine the end.

Summary of the invention

What the present invention proposed is a kind of cold splice for optical fibers, and its purpose is intended to overcome the existing defects of prior art, adopts three pilot pins mutually to be close to the space grip optical fiber of formation, broken through traditional structure, simple and reliable for structure, long service life, reusable, cost is low.

Technical solution of the present invention: its structure comprises pedestal (1), be provided with the stationary installation that is clamped at the clamp device in the pilot pin after two fiber end faces are fitted and described optical fiber is inserted the rear fixedly crust that puts in place at described pedestal (1), described clamp device comprises: V-type keeper (2), A, B, three pilot pins of C (3), pressing plate (4), and wherein V-type keeper (2) is embedded in the caulking groove (1-1) in the pedestal (1); A, B, three pilot pins of C (3) are mutually near forming optical fiber through hole (3-1); Pressing plate (4) is positioned in the draw-in groove (1-3) in the pedestal (1); Pressing plate (4) forms positioning chamber (2-1) with V-type keeper (2), in A, B, three pilot pins of C (3) the placement positioning chambeies (2-1), the B pilot pin (3) in A, B, three pilot pins of C (3), C pilot pin (3) are clamped in four elastic arms (2-2) in the V-type keeper (2); Described stationary installation comprises gland (8), and pedestal (1) both sides also are respectively equipped with gear face (1-10), and the optical cable coating that penetrates touches described gear face (1-10), and described latch (1-6) can tighten the sheath of rubber-insulated fiber cable front end that penetrates; Gland (8) is provided with container cavity (8-1), cantilever (8-2) and convex tendon (8-3), gland (8) fastening is on pedestal (1), locking arm (1-4) in the pedestal (1) enters container cavity (8-1), cantilever (8-2) is pressed into the rubber-insulated wire both sides that penetrate simultaneously, the rubber-insulated wire rear end that convex tendon (8-3) locking on the cantilever (8-2) penetrates fixes optical cable coating under the latch (1-6) in the pedestal (1) and convex tendon (8-3) acting in conjunction.

The present invention compared with prior art has following advantage: 1) the present invention breaks through the structure of the fixing docking of traditional V-type groove optical fiber, adopt three pilot pins mutually to be close to the space grip optical fiber of formation, simple in structure, easy to process, precision is easy to control and detects, and manufacturing cost reduces greatly.2) the present invention is in wearing fine process, and there are adaptive process in three pilot pins and optical fiber, need not manually to split structure, namely recovers tightening state after wearing fibre and putting in place, and simple to operate, merging precision is high.3) the formed optical fiber through hole of three pilot pins of the present invention is except the space of receiving optical fiber, also has three subtriangular spaces, and the optical fiber matching fluid that is extruded in the time of can be for fiber alignment provides the deposit space.4) pilot pin of the present invention adopts the non-corrosive material manufacturing, and reliable in structure is not subject to the factor affecting connecting qualities such as temperature variation, material aging, long service life.5) optical cable coating fixed sturcture of the present invention; gland is pressed into pedestal by the protruding axle rotation on the pedestal; compress crust by the space that dwindles in the pedestal; simultaneously gland is pressed into direction and to wear fine direction identical; when fixing crust, optical fiber has the power of slippaging forward all the time, has greatly improved the fibre junction success ratio; and in whole handshaking procedure, adequately protected, not frangibility.6) the present invention can compatible covered wire cable and the fiber alignment of 0.9mm crust optical cable, has overcome the shortcoming that traditional product can only similar optical cable docking.

Description of drawings

Fig. 1 is cold splice for optical fibers example structure synoptic diagram.

Fig. 2 is cold splice for optical fibers example structure synoptic diagram.

Fig. 3 is cold splice for optical fibers example structure partial sectional view.

Fig. 4 is the pedestal synoptic diagram.

Fig. 5 is V-type keeper synoptic diagram.

Fig. 6 is the pilot pin structural representation.

Fig. 7 is the pressing plate synoptic diagram.

Fig. 8 is the steel ball partial schematic diagram.

Fig. 9-a is bracelet reed synoptic diagram.

Fig. 9-b is reed synoptic diagram with holes.

Figure 10 is the gland synoptic diagram.

Figure 11-a is the outside drawing of 0.9 wire clamp.

Figure 11-b is 0.9 wire clamp cut-open view.

Among the figure 1 is pedestal, the 2nd, and the V-type keeper, the 3rd, pilot pin, the 4th, pressing plate, the 5th, steel ball, the 6th, the bracelet reed, the 7th, reed with holes, the 8th, gland, 9 is 0.9 wire clamps; 1-1 is caulking groove, and 1-2 is pilot hole, and 1-3 is draw-in groove, and 1-4 is locking arm, and 1-5 is the wire clamp hole, and 1-6 is latch, and 1-7 is the stuck point hole, and 1-8 is protruding axle, and 1-9 is Ka Tai, and 1-10 is the gear face; 2-1 is positioning chamber, and 2-2 is elastic arm; 3-1 is the optical fiber through hole, and 3-2 is spigot surface; 4-1 is lever arm, and 4-2 is stuck point; 6-1 is plectrum, and 8-1 is container cavity, and 8-2 is cantilever, and 8-3 is convex tendon, and 8-4 is axis hole, and 8-5 is the Ka Tai hole; 9-1 is teeth groove, and 9-2 is through wires hole, and 9-3 is the card muscle, and 9-4 is positioning handle, and 9-5 is the conical surface.

Embodiment

Contrast accompanying drawing 1-3, the optical fiber cold connection minor structure comprises pedestal 1, pedestal 1 be provided with the clamp device that is clamped at after two fiber end faces are fitted in the pilot pin and described optical fiber inserted put in place after the fixing stationary installation of crust.

Described clamp device comprises: V-type keeper (2), A, B, three pilot pins 3 of C, pressing plate (4), steel ball 5, bracelet reed 6 and reed with holes 7; Wherein V-type keeper 2 is embedded among the caulking groove 1-1 of pedestal 1; A, B, three pilot pins 3 of C are mutually near forming optical fiber through hole 3-1; Pressing plate 4 is positioned among the draw-in groove 1-3 of pedestal 1, pressing plate 4 forms positioning chamber 2-1 with V-type keeper 2, this positioning chamber 2-1 places A, B, three pilot pins 3 of C, and four elastic arm 2-2 of V-type keeper 2 clamp two pilot pins 3 of A, B in A, B, three pilot pins 3 of C; Steel ball 5 is positioned among the pilot hole 1-2 of pedestal 1, and steel ball 5 withstands the C root pilot pin 3 in A, B, three pilot pins 3 of C; A side of bracelet reed 6 clamping press plates 4 and pedestal 1, the plectrum 6-1 of bracelet reed 6 compresses steel ball 5 simultaneously, thereby holds out against the C root pilot pin 3 in A, B, three pilot pins 3 of C; Another side of reed 7 clamping press plates 4 with holes and pedestal 1 is fixed among the optical fiber through hole 3-1 optical fiber that penetrates.

Contrast accompanying drawing 4, the structure of pedestal comprises it being caulking groove 1-1, pilot hole 1-2, draw-in groove 1-3, locking arm 1-4, wire clamp hole 1-5, latch 1-6, stuck point hole 1-7, protruding axle 1-8, card platform 1-9, gear face 1-10; Wherein locking arm 1-4 and wire clamp hole 1-5 are arranged on the both sides of pedestal 1, and locking arm 1-4 is provided with latch 1-6.

Contrast accompanying drawing 5, positioning chamber 2-1 is formed by V-type keeper 2 and pressing plate in the V-type keeper 2, and positioning chamber 2-1 places A, B, three pilot pins of C, and four elastic arm 2-2 of V-type keeper 2 clamp two pilot pins of A, B in A, B, three pilot pins of C.

Near forming optical fiber through hole 3-1, A, B, three pilot pin 3 two ends of C are provided with spigot surface 3-2 mutually for contrast accompanying drawing 6, A, B, three pilot pins 3 of C.

Contrast accompanying drawing 7, pressing plate 4 is provided with lever arm 4-1, and stuck point 4-2 is arranged on the lever arm 4-1, and the stuck point hole on the pedestal and the stuck point 4-2 on the pressing plate 4 match, thereby pressing plate 4 is stuck in the pedestal; The elastic arm both sides that the lever arm 4-1 of pressing plate is pressed into the V-type keeper are tightening up elastic arm, thus the stationary positioned pin.

Contrast accompanying drawing 8, steel ball 5 is positioned in the pilot hole of pedestal, and steel ball withstands the C root pilot pin in A, B, three pilot pins of C.

Contrast accompanying drawing 9-a, 9-b, bracelet reed 6 is clamping press plate and pedestal from the side, and the plectrum 6-1 of bracelet reed 6 compresses steel ball simultaneously, and reed 7 with holes is fixed in the optical fiber through hole optical fiber that penetrates from opposite side clamping press plate and pedestal.

Contrast accompanying drawing 10, gland 8 is provided with container cavity 8-1, cantilever 8-2 and convex tendon 8-3, and gland 8 fastenings also are respectively equipped with the gear face in the pedestal both sides on pedestal, this gear face touches the optical cable coating that penetrates, and the latch in the pedestal can tighten the sheath of rubber-insulated fiber cable front end that penetrates; Locking arm in the pedestal enters container cavity 8-1, the rubber-insulated wire rear end that simultaneously convex tendon 8-3 locking penetrates, thus under the latch in the pedestal and the convex tendon 8-3 acting in conjunction optical cable coating is fixed.

Contrast accompanying drawing 11-a, 11-b, 0.9 wire clamp 9 comprises: teeth groove 9-1, through wires hole 9-2, card muscle 9-3, positioning handle 9-4 and conical surface 9-5; When the optical cable coating that penetrates is 0.9mm optical cable crust, positioning handle 9-4 places the wire clamp hole of pedestal, 0.9 wire clamp 9 front ends touch the gear face in the pedestal, between the latch in the teeth groove 9-1 embedding pedestal, penetrate the good optical fiber direct of decorticating among the through wires hole 9-2 to being adjacent to 0.9 wire clamp 9) conical surface 9-5, gland covers on 0.9 wire clamp 9, locking arm in the pedestal enters in the container cavity of gland, cantilever is pressed into 0.9 wire clamp, 9 both sides, clamp 0.9 wire clamp 9, simultaneously the card muscle 9-3 locking 0.9mm optical cable coating in 0.9 wire clamp 9.

Using method: when optical fiber to be worn was covered wire cable, wherein optical fiber that need are continued was by the decorticating of constant length specification; Penetrate optical fiber from cold joint connector A end, until the optical cable coating end face is adjacent to the gear face of pedestal; Cover tightly gland; The other optical fiber that need are continued is by the decorticating of constant length specification; Penetrate optical fiber from cold joint connector B end, until the optical cable coating end face is adjacent to the gear face of pedestal; Cover tightly gland, complete connection.When optical fiber to be worn is the 0.9mm optical cable, 0.9 wire clamp is put into the wire clamp hole of cold splice for optical fibers A end; Wherein optical fiber that need are continued is by the decorticating of constant length specification; Penetrate optical fiber from cold joint connector A end, until the optical cable coating end face is adjacent to the conical surface of 0.9 wire clamp; Cover tightly gland; 0.9 wire clamp is put into the wire clamp hole of cold splice for optical fibers B end; Wherein optical fiber that need are continued is by the decorticating of constant length specification; Penetrate optical fiber from cold joint connector B end, until the optical cable coating end face is adjacent to the conical surface of 0.9 wire clamp; Cover tightly gland, complete connection.

Claims

1. cold splice for optical fibers, comprise pedestal (1), be provided with the stationary installation that is clamped at the clamp device in the pilot pin after two fiber end faces are fitted and described optical fiber is inserted the rear fixedly crust that puts in place at described pedestal (1), it is characterized in that: described clamp device comprises: V-type keeper (2), A, B, three pilot pins of C (3), pressing plate (4), and wherein V-type keeper (2) is embedded in the caulking groove (1-1) in the pedestal (1); A, B, three pilot pins of C (3) are mutually near forming optical fiber through hole (3-1); Pressing plate (4) is positioned in the draw-in groove (1-3) in the pedestal (1); Pressing plate (4) forms positioning chamber (2-1) with V-type keeper (2), in A, B, three pilot pins of C (3) the placement positioning chambeies (2-1), the A pilot pin (3) in A, B, three pilot pins of C (3), B pilot pin (3) are clamped in four elastic arms (2-2) in the V-type keeper (2); Described stationary installation comprises gland (8), and pedestal (1) both sides also are respectively equipped with gear face (1-10), and the optical cable coating that penetrates touches described gear face (1-10), and latch (1-6) can tighten the sheath of rubber-insulated fiber cable front end that penetrates; Gland (8) is provided with container cavity (8-1), cantilever (8-2) and convex tendon (8-3), gland (8) fastening is on pedestal (1), locking arm (1-4) in the pedestal (1) enters container cavity (8-1), cantilever (8-2) is pressed into the rubber-insulated wire both sides that penetrate simultaneously, the rubber-insulated wire rear end that convex tendon (8-3) locking on the cantilever (8-2) penetrates fixes optical cable coating under the latch (1-6) in the pedestal (1) and convex tendon (8-3) acting in conjunction; Described clamp device also comprises steel ball (5), bracelet reed (6), reed with holes (7); Wherein steel ball (5) is positioned in the pilot hole (1-2) in the pedestal (1), and steel ball (5) withstands the C pilot pin (3) in A, B, three pilot pins of C (3); Bracelet reed (6) is clamping press plate (4) and pedestal (1) from the side, the plectrum (6-1) of bracelet reed (6) compresses steel ball (5) simultaneously, thereby hold out against the 3rd C pilot pin (3), reed with holes (7) is fixed in the optical fiber through hole (3-1) optical fiber that penetrates from opposite side clamping press plate (4) and pedestal (1).

2. a kind of cold splice for optical fibers according to claim 1, it is characterized in that stationary installation also comprises 0.9mm wire clamp (9), establish teeth groove (9-1), through wires hole (9-2), card muscle (9-3), positioning handle (9-4) and the conical surface (9-5) in the 0.9mm wire clamp (9); When the optical cable coating that penetrates is 0.9mm optical cable crust, the positioning handle (9-4) of 0.9mm wire clamp (9) is placed the wire clamp hole (1-5) of pedestal (1), 0.9mm wire clamp (9) front end touches the gear face (1-10) of pedestal (1), between the latch (1-6) in teeth groove (9-1) the embedding pedestal (1), optical fiber penetrates from through wires hole (9-2), until be adjacent to the conical surface (9-5) of 0.9mm wire clamp (9), gland (8) covers on 0.9mm wire clamp (9), locking arm (1-4) in the pedestal (1) enters the container cavity (8-1) of gland (8), the cantilever (8-2) of gland (8) is pressed into 0.9mm wire clamp (9) both sides, clamp 0.9mm wire clamp (9), card muscle (9-3) the locking 0.9mm optical cable coating in the 0.9mm wire clamp (9).

3. a kind of cold splice for optical fibers according to claim 1, it is characterized in that being provided with stuck point hole (1-7) in the middle of pedestal (1) outside surface, be provided with lever arm (4-1) at described pressing plate (4), stuck point (4-2) is arranged on the lever arm (4-1), stuck point (4-2) on stuck point hole (1-7) on the pedestal (1) and the pressing plate (4) matches, thereby pressing plate (4) is stuck in the pedestal (1); Elastic arm (2-2) both sides that the lever arm of pressing plate (4-1) is pressed into V-type keeper (2) are tightening up elastic arm (2-2), thus stationary positioned pin (3).

4. cold splice for optical fibers according to claim 1 is characterized in that: the plectrum (6-1) of bracelet reed (6) can provide the elasticity external force that compresses steel ball (5) with certain elasticity; Contain index-matching fluid in the described optical fiber through hole (3-1).

5. cold splice for optical fibers according to claim 2, it is characterized in that: described pilot pin (3) two ends are provided with spigot surface (3-2).

6. cold splice for optical fibers according to claim 3, the both sides that it is characterized in that pedestal (1) also are respectively arranged with a pair of protruding axle (1-8) He Katai (1-9), be provided with axis hole (8-4) and Ka Tai hole (8-5) in described gland (8) both sides, described axis hole (8-4) matches with the protruding axle (1-8) of pedestal (1), matching with described Ka Tai (1-9) in described Ka Tai hole (8-5), and rotates centered by protruding axle (1-8).