CN201673281U

CN201673281U - LC type optical fiber connector

Info

Publication number: CN201673281U
Application number: CN2010201840649U
Authority: CN
Inventors: 张爱民; 黄新格; 王磊; 李玉平; 伍丹丹; 闫贺全; 杨海涛; 姚猛; 郝勇; 贡亮亮; 闫立群; 梁会娟; 赵红芳; 卞玉振
Original assignee: HEBEI SIFANG TELECOMMUNICATION EQUIPMENT CO Ltd
Current assignee: HEBEI SIFANG TELECOMMUNICATION EQUIPMENT CO Ltd
Priority date: 2010-05-10
Filing date: 2010-05-10
Publication date: 2010-12-15
Anticipated expiration: 2020-05-10

Abstract

The utility model relates to an optical fiber connecting device, in particular to an LC type optical fiber connector which comprises a front shell (5), a rear shell (7), a tail sleeve (1), a spring (8), a fiber core (13), and a tail seat (12), wherein the right end of the tail seat (12) is fixedly connected with an insertion core (11), the fiber core (13) penetrates through the tail seat (12) and the insertion core (11), the tail seat (12) is encapsulated in a cavity (15) formed by fastening of the front shell (5) and the rear shell (7), and splicing of the two and the tail sleeve (1); the connector also comprises a heat shrinkage hose (17), the left end of the front shell (5) is fixedly connected with a jacket (4) sheathed with a rear sleeve (2), on which the right end of the tail sleeve (1) is sheathed, the right end of the heat shrinkage hose (17) is fixedly connected with the rear sleeve (2), and the left end thereof penetrates into the through hole of the tail sleeve (1). The optical fiber connecting device has simple structure and is convenient for use and installation.

Description

LC type fiber active linker

Technical field

The utility model relates to a kind of optical fiber splicing device, especially a kind of LC type joints of optical fibre.

Background technology

The existing joints of optical fibre comprise: stem stem, tapered cup nut, cushion collar, attachment cap and adapter, wherein the tapered cup nut of hollow is tightened on the stem stem by internal thread, the convex shoulder that the connection cap sleeve is crossed on tapered cup nut and the core outer surface of column is spacing, cushion collar is sleeved on the outside of tapered cup nut, and adapter screws in attachment cap by external thread.China utility model patent ZL200920053030.3 discloses a kind of LC plastic joints of optical fibre and LC plastic joints of optical fibre duplex group, comprise fore shell, back cover, optical fiber inner sheath, spring, spring housing is located on the optical fiber inner sheath, fore shell rear end and the socket of back cover front end, fore shell and back cover socket place offer the disposal area, the optical fiber inner sheath is slidingly arranged in the disposal area by the elastic force of spring, the optical fiber inner sheath stretches out the front end of fore shell in the disposal area, its simple structure, easy to assembly, and long service life, accurate with the adapter contraposition, can reduce decay.Above its complex structure of the joints of optical fibre, the manufacturing cost height, and come off easily, install and use constant.

The utility model content

Be to solve the deficiencies in the prior art, the utility model provides a kind of and can effectively prevent to come off, easy for installation, LC type fiber active linker, and it is simple in structure, and low cost of manufacture is easy to use.

For achieving the above object, LC type fiber active linker of the present utility model, comprise fore shell (5), back cover (7), tail cover (1), spring (8), fibre core (13), tailstock (12), tailstock (12) right-hand member is fixed with lock pin (11), described fibre core (13) is applied in tailstock (12) and the lock pin (11), described tailstock (12) is encapsulated in by fore shell (5), in back cover (7) snapping and the cavity (15) that peg graft to form with tail cover (1), this flexible jumper also comprises pyrocondensation flexible pipe (17), described fore shell (5) left end is fixed with sheath (4), be set with rearmounted sleeve (2) on the sheath (4), described tail cover (1) is sleeved on the rearmounted sleeve (2) in its right-hand member, described pyrocondensation flexible pipe (17) right-hand member is fixing to be connected with rearmounted sleeve (2), and left end is in the through hole of tail cover (1).

Above-mentioned tailstock (12) is arranged in the cavity (15) by spring (8) location that is fixedly installed on boss (10) on back cover (7) inwall, be set on the tailstock (12), described spring (8) one end overheads are on the retaining wall (6) of fore shell (5) convex, other end overhead is on the ladder platform of tailstock (12), and described lock pin (11) passes from the through hole in the middle of the boss (10).

Further, fibre core (13) is set with protective casing (14), and the T font that is fitted with band through hole (16) in the cavity that forms between protective casing (14) and fibre core (13) is trapped (3), and described fibre core (13) is plugged in the through hole (16).

Further, the T font bottom surface diameter of described trapping (3) equals sheath (4) end face diameter.

In addition, described back cover (7) right-hand member is fitted with the dust cap (9) that inserts for lock pin (11).

Adopted technique scheme, front end have tailstock that fibre core, rear end have a lock pin by be fixedly installed on the limited block on the fore shell inwall, the spring location that is set on the lock pin is arranged in the cavity, effectively avoided the generation of obscission, and add dust cap, prevent that lock pin is infected with dust, it is simple in structure, uses, easy for installation, owing to adopt the pyrocondensation flexible pipe to connect, applicable to the fiber active linker in 2.0 fine footpaths.

Description of drawings

Below in conjunction with the drawings and the specific embodiments the present invention is done further to describe in detail:

Fig. 1 is an one-piece construction synoptic diagram of the present utility model.

Embodiment

By as can be known shown in Figure 1, LC type fiber active linker of the present utility model, comprise fore shell 5, back cover 7, tail cover 1, spring 8, fibre core 13, tailstock 12, tailstock 12 right-hand members are fixed with lock pin 11, fibre core 13 is applied in tailstock 12 and the lock pin 11, described tailstock 12 is encapsulated in by fore shell 5, back cover 7 snappings are also pegged graft in the cavity of forming 15 with tail cover 1, this flexible jumper also comprises pyrocondensation flexible pipe 17, described fore shell 5 left ends are fixed with sheath 4, be set with rearmounted sleeve 2 on the sheath 4, described tail cover 1 is sleeved on the rearmounted sleeve 2 in its right-hand member, and described pyrocondensation flexible pipe 17 right-hand members and rearmounted sleeve 2 are connected, and left end overlaps through tail in 1 the through hole.

Above-mentioned tailstock 12 is arranged in the cavity 15 by spring 8 location that are fixedly installed on boss 10 on back cover 7 inwalls, be set on the tailstock 12, described spring 8 one end overheads are on the retaining wall 6 of fore shell 5 convexes, other end overhead is on the ladder platform of tailstock 12, and described lock pin 11 passes from the through hole in the middle of the boss 10.

Fibre core 13 is set with protective casing 14, and the T font that is fitted with band through hole 16 in the cavity of

protective casing

14 and 13 formation of fibre core traps 3, and described fibre core 13 is plugged in the through hole 16.3 the T font bottom surface diameter of trapping equals sheath 4 end face diameters.Back cover 7 right-hand members are fitted with the dust cap 9 that inserts for lock pin 11.

The assembly method of LC type fiber active linker of the present utility model is as follows: earlier pyrocondensation flexible pipe 17 and rearmounted sleeve 2 are connected, and sheath 4 fixedly is inserted into fore shell 5 left ends; With tail cover 1, the pyrocondensation flexible pipe 17, the T font that have a rearmounted sleeve 2 trap 3, protective casing 14, the fore shell 5 that is fixed with sheath 4, spring 8 be sleeved on the fibre core 13 in order; and make fibre core 13 successively in tailstock 12 and lock pin 11; lock pin 11 is fixed on tailstock 12 right-hand members; fibre core 13 relative tailstocks 12 and lock pin 11 are fixing, each position component sequential placement of connector when finishing assembling.

Spring 8 is sleeved on the tailstock 12, the right-hand member of spring 8 is spacing by the ladder platform of tailstock 12, left end is spacing by the retaining wall 6 of fore shell 5 convexes, use the force compresses tailstock left, and then drive spring 8 compressions, plug-in mounting traps 3, make protective casing 14 right-hand member overheads on the ladder platform of tailstock 12, and trap 3 bottom surfaces and sheath 4 left ends are adjacent to; Hair is protected in the triumphant Buddhist wire drawing that is wrapped in the fibre core outside axially to be tiled in outside the sheath 4, the rearmounted sleeve 2 of plug-in mounting, and to rearmounted sleeve 2 be coated with triumphant Buddhist wire drawing protect hair section pincers tight after, with 17 pyrocondensations of pyrocondensation flexible pipe, pyrocondensation flexible pipe 17 tightly is wrapped in outside the optical cable, simultaneously the tail cover is sleeved on the rearmounted sleeve; Behind back cover and fore shell snapping, plug dust cap, finish the assembling of this connector.

Above content is preferred embodiment of the present utility model, for those skilled in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.

Claims

1. LC type fiber active linker, comprise fore shell (5), back cover (7), tail cover (1), spring (8), fibre core (13), tailstock (12), tailstock (12) right-hand member is fixed with lock pin (11), described fibre core (13) is applied in tailstock (12) and the lock pin (11), described tailstock (12) is encapsulated in by fore shell (5), in back cover (7) snapping and the cavity (15) that peg graft to form with tail cover (1), it is characterized in that: this flexible jumper also comprises pyrocondensation flexible pipe (17), described fore shell (5) left end is fixed with sheath (4), be set with rearmounted sleeve (2) on the sheath (4), described tail cover (1) is sleeved on the rearmounted sleeve (2) in its right-hand member, described pyrocondensation flexible pipe (17) right-hand member is fixing to be connected with rearmounted sleeve (2), and left end is in the through hole of tail cover (1).

2. LC type fiber active linker according to claim 1, it is characterized in that: described tailstock (12) is arranged in the cavity (15) by spring (8) location that is fixedly installed on boss (10) on back cover (7) inwall, be set on the tailstock (12), described spring (8) one end overheads are on the retaining wall (6) of fore shell (5) convex, other end overhead is on the ladder platform of tailstock (12), and described lock pin (11) passes from the through hole in the middle of the boss (10).

3. LC type fiber active linker according to claim 2; it is characterized in that: described fibre core (13) is set with protective casing (14); the T font that is fitted with band through hole (16) in the cavity that forms between protective casing (14) and fibre core (13) is trapped (3), and described fibre core (13) is plugged in the through hole (16).

4. LC type fiber active linker according to claim 3 is characterized in that: the T font bottom surface diameter of described trapping (3) equals sheath (4) end face diameter.

5. according to each described LC type fiber active linker among the claim 1-4, it is characterized in that: described back cover (7) right-hand member is fitted with the dust cap (9) that inserts for lock pin (11).