CN201273945Y

CN201273945Y - SC type plastic optical fiber connector

Info

Publication number: CN201273945Y
Application number: CNU200820188665XU
Authority: CN
Inventors: 王自和; 秦建新
Original assignee: DONGGUAN IPT INDUSTRIAL Co Ltd
Current assignee: Dongguan IPT Industrial Co., Ltd.
Priority date: 2008-08-15
Filing date: 2008-08-15
Publication date: 2009-07-15
Anticipated expiration: 2018-08-15

Abstract

The utility model relates to technical field of the optical fiber connector, in particular to an SC type plastic optical fiber connector. The SC type plastic optical fiber connector comprises an optical fiber inner sheath for coating the plastic optical fiber, a spring, a fixed seat, a clamping seat and a casing. The optical fiber inner sheath is provided with a bayonet. The spring is sheathed on the bayonet. The fixed seat is provided with an accommodation area for accommodating the spring. The optical fiber inner sheath sheathed with the spring is sheathed with the fixed seat and the clamping seat in a sliding way. The fixed seat and the clamping seat are sheathed with each other. The casing is fixedly sheathed on the clamping seat. The utility model has simple structure, low fabrication cost, long service life and high contraposition precision with adapter, which can reduce the transmission loss of the optical signal.

Description

A kind of SC plastic joints of optical fibre

Technical field

The utility model relates to joints of optical fibre technical field, relates in particular to a kind of SC plastic joints of optical fibre.

Background technology

Existing plastic optical fibre connector comprises: 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 enclosed within the outside of tapered cup nut again, and adapter screws in attachment cap by external thread.From above plastic optical fibre connector as can be seen, prior art complex structure, cost of manufacture height.

The utility model content

The utility model provides a kind of simple structure, the SC plastic joints of optical fibre cheap for manufacturing cost.

A kind of SC plastic joints of optical fibre, comprise the optical fiber inner sheath, spring, holder, deck and the shell that are used for coating plastic optical fiber, the optical fiber inner sheath is provided with bayonet slot, spring housing is located on the bayonet slot, holder offers the disposal area that is used for putting spring, be arranged with the optical fiber inner sheath of spring and holder, deck slip socket, holder and deck are fixedly sleeved, and the shell fixed cover is located on the deck.

Wherein, the optical fiber inner sheath is provided with outer step, and outer step contacts mutually with deck.

Wherein, the optical fiber inner sheath is provided with interior step, and interior step adapts to the through hole radius and the naked core of optical fiber inner sheath front end, and interior step to the through hole radius and the plastic optical fiber of optical fiber inner sheath rear end adapts.

Wherein, the through hole of optical fiber inner sheath rear end is provided with internal thread.

Wherein, shell offers draw-in groove.

Wherein, shell is provided with projection.

Wherein, further comprise oversheath and trim ring, trim ring is installed in the oversheath front end, and the trim ring fixed cover is located on the holder.

From above technical scheme as can be seen, the utility model comprises optical fiber inner sheath, spring, holder, deck and the shell that is used for coating plastic optical fiber, the optical fiber inner sheath is provided with bayonet slot, spring housing is located on the bayonet slot, holder offers the disposal area that is used for putting spring, be arranged with the optical fiber inner sheath of spring and holder, deck slip socket, holder and deck are fixedly sleeved, and the shell fixed cover is located on the deck; The utility model simple structure, cheap for manufacturing cost, and long service life, accurate with the adapter contraposition, can reduce the optical signal transmission loss.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a decomposing schematic representation of the present utility model;

Fig. 3 is a sectional view of the present utility model;

Fig. 4 is the sectional view of the utility model optical fiber inner sheath;

Fig. 5 is the sectional view of the utility model holder.

Embodiment

Please refer to Fig. 1 to Fig. 5, the utility model is carried out concrete description below in conjunction with accompanying drawing.

The SC plastic joints of optical fibre of present embodiment, comprise the optical fiber inner sheath 12, spring 13, holder 14, deck 11 and the shell 10 that are used for coating plastic optical fiber 18, optical fiber inner sheath 12 is provided with bayonet slot 21, spring 13 is sheathed on the bayonet slot 21, holder 14 offers the disposal area 25 that is used for putting spring 13, be arranged with the optical fiber inner sheath 12 and holder 14, deck 11 slip sockets of spring 13, holder 14 is fixedly sleeved with deck 11, and shell 10 fixed covers are located on the deck 11.Spring 13 places disposal area 25, spring 13 can only be in the scope of disposal area 25 stretching motion, and spring 13 is sheathed on the bayonet slot 21, makes spring 13 with 12 motions of optical fiber inner sheath, thereby has limited the moving displacement of optical fiber inner sheath 12.The utility model simple structure, cheap for manufacturing cost, and long service life, accurate with the adapter contraposition, can reduce the optical signal transmission loss.

The optical fiber inner sheath 12 of present embodiment is provided with outer step 22, and outer step 22 contacts mutually with deck 11, thus the maximum length that limit fibre inner sheath 12 stretches out previously to deck 11.

The optical fiber inner sheath 12 of present embodiment is provided with interior step 23, and interior step 23 adapts to the through hole radius and the naked core 17 of optical fiber inner sheath 12 front ends, and interior step 23 to the through hole radius and the plastic optical fiber 18 of optical fiber inner sheath 12 rear ends adapts.When using the utility model, earlier plastic optical fiber 18 is dialled skin, make it expose naked core 17, then the through hole of plastic optical fiber 18 from optical fiber inner sheath 12 rear ends stretched into, interior step 23 to the through hole of optical fiber inner sheath 12 front ends only can hold naked core 17 to be passed through, and has limited the length that stretches into optical fiber inner sheath 12 rear ends of plastic optical fiber 18 by interior step 23.

The through hole of optical fiber inner sheath 12 rear ends of present embodiment is provided with internal thread 24, plastic optical fiber 18 stretches into the through hole of optical fiber inner sheath 12 rear ends, move to suitable position after, the fine inner sheath of tool using card press polish 12 rear ends, can compress plastic optical fiber 18 by internal thread 24, prevent that plastic optical fiber 18 from coming off.The optical fiber inner sheath 12 of present embodiment uses metal to process.

The shell 10 of present embodiment offers draw-in groove 19, and shell 10 is provided with projection 20.The draw-in groove 19 of shell 10 is connected with the bayonet socket of adapter, and projection 20 is corresponding with the open slot of adapter, thereby helps accurate contraposition, can reduce the optical signal transmission loss.

The SC plastic joints of optical fibre of present embodiment further comprise oversheath 16 and trim ring 15, and trim ring 15 is installed in oversheath 16 front ends, and trim ring 15 fixed covers are located on the holder 14.Oversheath 16 is used to protect the plastic optical fiber 18 that is positioned at connector one end, prevents that plastic optical fiber 18 is by crushing or bending.

Above content only is preferred embodiment of the present utility model, for those of ordinary skill 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. SC plastic joints of optical fibre, it is characterized in that, comprise the optical fiber inner sheath (12) that is used for coating plastic optical fiber (18), spring (13), holder (14), deck (11) and shell (10), optical fiber inner sheath (12) is provided with bayonet slot (21), spring (13) is sheathed on the bayonet slot (21), holder (14) offers the disposal area (25) that is used for ccontaining described spring (13), be arranged with the optical fiber inner sheath (12) and holder (14) of spring (13), deck (11) slip socket, holder (14) is fixedly sleeved with deck (11), and shell (10) fixed cover is located on the deck (11).

2. the SC plastic joints of optical fibre according to claim 1 is characterized in that described optical fiber inner sheath (12) is provided with outer step (22), and outer step (22) contacts mutually with described deck (11).

3. the SC plastic joints of optical fibre according to claim 2, it is characterized in that, described optical fiber inner sheath (12) is provided with interior step (23), interior step (23) adapts to the through hole radius and the naked core (17) of optical fiber inner sheath (12) front end, and interior step (23) to the through hole radius and the plastic optical fiber (18) of optical fiber inner sheath (12) rear end adapts.

4. the SC plastic joints of optical fibre according to claim 3 is characterized in that, the through hole of described optical fiber inner sheath (12) rear end is provided with internal thread (24).

5. the SC plastic joints of optical fibre according to claim 1 is characterized in that described shell (10) offers draw-in groove (19).

6. the SC plastic joints of optical fibre according to claim 5 is characterized in that described shell (10) is provided with projection (20).

7. according to any described SC plastic joints of optical fibre of claim 1 to 6, it is characterized in that, further comprise oversheath (16) and trim ring (15), trim ring (15) is installed in oversheath (16) front end, and trim ring (15) fixed cover is located on the described holder (14).