CN201984187U - Connecting structure of optical fiber cold connection inserting core body - Google Patents
Connecting structure of optical fiber cold connection inserting core body Download PDFInfo
- Publication number
- CN201984187U CN201984187U CN2011201034100U CN201120103410U CN201984187U CN 201984187 U CN201984187 U CN 201984187U CN 2011201034100 U CN2011201034100 U CN 2011201034100U CN 201120103410 U CN201120103410 U CN 201120103410U CN 201984187 U CN201984187 U CN 201984187U
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- China
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- lock pin
- optical fiber
- connecting pipe
- cold connection
- attachment structure
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Abstract
The utility model relates to a connecting structure of an optical fiber cold connection inserting core body, which comprises a connecting pipe. One end of the connecting pipe is provided with a first inserting core, and the other end of the connecting pipe is provided with a second inserting core, the first inserting core and the second inserting core are both fixedly connected with the connecting pipe, an optical fiber connection portion is arranged inside the second inserting core, and an air outlet is arranged on the outer wall of the second inserting core corresponding to the optical fiber connection portion and communicated with the second inserting core. Connected optical fibers penetrate into caudal peduncles of the inserting cores and are pushed to the optical fiber connection portion, the air in the connecting pipe can be discharged from the air outlet, the connected optical fibers can be connected with pre-embedded optical fibers in vacuum state, light scattering phenomenon caused by existence of a medium (the air) can be avoided, and insertion loss of the optical fibers is reduced. The connecting structure of the optical fiber cold connection inserting core body is simple in structure, convenient to operate, low in connection loss and high in stability and reliability.
Description
Technical field
The utility model relates to a kind of structure of optical fiber cold connection, and especially a kind of optical fiber cold connection lock pin attachment structure belongs to the technical field of optical fiber cold connection.
Background technology
In the fibre junction field, the mechanical type fibre junction is two kinds of different modes realizing that optical fiber is fixedlyed connected with Fusion Joining.Fiber to the home be deployed in user resident and indoor at the fibre junction point have big and the characteristics that the place disperses of number of users.Because different user is applied to install asynchronism(-nization), same sub-district, similar ADSL service release.After the user arrived to a certain degree, existing workmen and heat sealing machine can not satisfy the time requirement of user's turn up service.Mechanical type fibre junction mode is because simple to operate, and the staff training cycle is short, and instrument is invested characteristics such as little, for the optical fiber large scale deployment provides most cost-effective fibre junction solution.In such as corridor eminence, small space, illumination is not enough, on-the-spot power taking inconvenience etc. occasion.The mechanical type joints of optical fibre provide convenience, practicality, the means that continue efficiently for design, installation, maintainer.In theory, in Fiber to the home engineering, to the family, continuing of the optical cable of registering one's residence of enormous amount, scattered distribution such as capillary all should consider to use the mechanical type joints of optical fibre after the optical splitter beam split.
Optical fiber cold joint technology is guardian technique in optical fiber is registered one's residence engineering, but the insertion loss of optical fiber cold joint product is the resistance for fear of this technology popularization always.Generally the Insertion Loss requirement to the common joints of optical fibre is less than 0.3 or 0.2; Certainly the insertion loss of cold joint product can be more satisfactory state below 0.3 or 0.2.But external domesticly seldom have several companies the insertion loss of cold joint product really can be controlled at below 0.3 or 0.2, and except that Minnesota Mining and Manufacturing Company, the real insertion loss of this series products of other companies is all at 0.5 ~ 0.6.Like product adopts the design of V-type groove mostly, and two ends optical fiber is docked in groove.
The too high The key factor of cold connector Insertion Loss is the low-refraction that the breakpoint place has the clearance to cause.A lot of companies only consider at the breakpoint place when product design and add the matching fluid secluding air, and do not consider the air emptying that how breakpoint place itself is existed, matching fluid wraps up the original micro-air in breakpoint place when using easily, causes insertion loss to maintain about 0.5.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of optical fiber cold connection lock pin attachment structure is provided, and it is simple in structure, easy to operate, connecting loss is low, stability and reliability height.
According to the technical scheme that the utility model provides, described optical fiber cold connection lock pin attachment structure comprises connecting pipe; Described connecting pipe one end is provided with first lock pin, and the other end is provided with second lock pin; Described first lock pin, second lock pin are all fixedlyed connected with connecting pipe; Be provided with fibre junction portion in second lock pin; The corresponding outer wall of second lock pin and fibre junction portion is provided with vent port, and described vent port is connected with second lock pin.
Be provided with pre-buried optical fiber in described first lock pin, an end of described pre-buried optical fiber stretches in the fibre junction portion; Be provided with jointed fiber in second lock pin, described jointed fiber is connected in (in second lock pin) fibre junction portion with pre-buried optical fiber and continues.
Described second lock pin is provided with the plug core tail handle that is used to lead corresponding to the other end that links to each other with connecting pipe.Be provided with the jack that distributes along the plug core tail handle length direction in the described plug core tail handle, described jack is connected with second lock pin and vent port.
Described plug core tail handle is provided with the gland that is used to compress plug core tail handle.Described first lock pin is concentric distribution with connecting pipe.
Described jack is V-shaped.Be provided with optical fiber matching fluid in the described fibre junction portion.Described vent port is positioned at the joint portion of the connecting pipe and second lock pin.One end of described first lock pin, second lock pin stretches in the connecting pipe respectively, and fixedlys connected with connecting pipe.
Advantage of the present utility model: an end of connecting pipe is provided with first lock pin, and the other end is provided with second lock pin; Be provided with pre-buried optical fiber in first lock pin, the joint portion of second lock pin and connecting pipe is provided with fibre junction portion, the corresponding outer wall of second lock pin and fibre junction portion is provided with vent port, second lock pin is provided with plug core tail handle corresponding to the other end that links to each other with connecting pipe, gland is set on the plug core tail handle, jointed fiber penetrates in the plug core tail handle, promote jointed fiber to fibre junction portion, air in the connecting pipe can be discharged in vent port, jointed fiber and pre-buried optical fiber can be at complete connections under the vacuum state, avoid medium (air) to have the diffusing phenomenon of the light that produces, reduced the insertion loss value of optical fiber; Simple in structure, easy to operate, connecting loss is low, stability and reliability height.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in Figure 1: the utility model comprises first lock pin 1, connecting pipe 2, second lock pin 3, plug core tail handle 4, gland 5, pre-buried optical fiber 6, vent port 7, jointed fiber 8 and jack 9.
As shown in Figure 1: the end that the two ends of described connecting pipe 2 are respectively equipped with first lock pin 1 and second lock pin, 3, the first lock pins 1 stretches in the connecting pipe 2, and an end of second lock pin 3 stretches in the other end of connecting pipe 2; And first lock pin 1, second lock pin 3 are all fixedlyed connected with connecting pipe 2.Be concentric distribution setting in first lock pin 1, second lock pin 3 and the connecting pipe 2; Promptly the axis of first lock pin 1, second lock pin 3 and connecting pipe 2 is positioned at same straight line.Be provided with fibre junction portion in second lock pin 3, second lock pin 3 is provided with vent port 7 with the corresponding outer wall of fibre junction portion, and vent port 7 is discharged the air in the fibre junction portion.Particularly, vent port 7 is positioned at the joint portion of second lock pin 3 and connecting pipe 2.Be provided with pre-buried optical fiber 6 in first lock pin 1, an end of pre-buried optical fiber 6 passes first lock pin 1; After first lock pin 1 and connecting pipe 2 were fixed, the end of pre-buried optical fiber 6 was positioned at fibre junction portion.Second lock pin 3 is provided with plug core tail handle 4 corresponding to the other end that links to each other with connecting pipe 2, and described plug core tail handle 4 is fixedlyed connected with second lock pin 3.Be provided with the jack 9 that distributes along plug core tail handle 4 axial lengths in the plug core tail handle 4, described jack 9 is connected with second lock pin 3 and fibre junction portion; Jack 9 is used for the guiding to jointed fiber 8.Plug core tail handle 4 is V-shaped corresponding to the end that jack 9 is set, and plug core tail handle 4 is provided with the gland 5 that is used to compress plug core tail handle 4.The external diameter of plug core tail handle 4 is and increases structure gradually, the outer end diameter maximum that plug core tail handle 4 links to each other with second lock pin 3; When mobile, gland 5 can compress V-type jack 9 structures of plug core tail handle 4 to gland 5, and jointed fiber 8 is installed in the plug core tail handle 4 reliably on plug core tail handle 4.For the reliability that pre-buried optical fiber 6 and jointed fiber 8 are continued, in the fibre junction portion in second lock pin 3 optical fiber matching fluid can be set.
As shown in Figure 1: during use, pre-buried optical fiber 6 is put into first lock pin 1, an end of pre-buried optical fiber 6 is concordant with the end grinding of first lock pin 1, and the other end passes outside first lock pin 1.One end of first lock pin 1 stretches in the connecting pipe 2, and pre-buried optical fiber 6 is positioned at the fibre junction portion of second lock pin 3 corresponding to stretching out the outer end of first lock pin 1.After second lock pin 3 and plug core tail handle 4 were fixedly connected, an end of second lock pin 3 stretches in the connecting pipe 2 and with connecting pipe 2 fixedlyed connected.Before continuing, gland 5 is moved to a end away from second lock pin 3, make plug core tail handle 4 keep elasticity preferably; Then an end of jointed fiber 8 is inserted in the jack 9, constantly promote jointed fiber 8, arrive fibre junction portions until jointed fiber 8, the work of fibre junction is finished with after pre-buried optical fiber 6 contacts in the end of jointed fiber 8.After jointed fiber 8 and pre-buried optical fiber 6 continue and finishes, promote gland 5, gland 5 is pressed on jointed fiber 8 in the plug core tail handle 4.Simultaneously, constantly promote in the process of jointed fiber 8, air in second lock pin 3 and the connecting pipe 2 can be discharged from vent port 7, guarantee that pre-buried optical fiber 6 and jointed fiber 8 fibre junctions are under the relative vacuum state, avoid medium (air) to have the diffusing phenomenon of the light that produces, reduced the insertion loss value of optical fiber.
One end of the utility model connecting pipe 2 is provided with first lock pin 1, and the other end is provided with second lock pin 3; Be provided with pre-buried optical fiber 6 in first lock pin 1, second lock pin 3 is provided with fibre junction portion with the joint portion of connecting pipe 2, second lock pin 3 is provided with vent port 7 with the corresponding outer wall of fibre junction portion, second lock pin 3 is provided with plug core tail handle 4 corresponding to the other end that links to each other with connecting pipe 2, gland 5 is set on the plug core tail handle 4, jointed fiber 8 penetrates in the plug core tail handle 4, promote jointed fiber 8 to fibre junction portion, air in the connecting pipe 2 can be discharged in vent port 7, jointed fiber 8 can be at complete connection under the vacuum state with pre-buried optical fiber 6, avoid medium (air) to have the diffusing phenomenon of the light that produces, reduced the insertion loss value of optical fiber; Simple in structure, easy to operate, connecting loss is low, stability and reliability height.
Claims (10)
1. an optical fiber cold connection lock pin attachment structure comprises connecting pipe (2); It is characterized in that: described connecting pipe (2) one ends are provided with first lock pin (1), and the other end is provided with second lock pin (3); Described first lock pin (1), second lock pin (3) are all fixedlyed connected with connecting pipe (2); Second lock pin is provided with fibre junction portion in (3); Second lock pin (3) is provided with vent port (7) with the corresponding outer wall of fibre junction portion, and described vent port (7) is connected with second lock pin (3).
2. optical fiber cold connection lock pin attachment structure according to claim 1 is characterized in that: be provided with pre-buried optical fiber (6) in described first lock pin (1), an end of described pre-buried optical fiber (6) stretches in the fibre junction portion; Be provided with jointed fiber (8) in second lock pin (3), described jointed fiber (8) is connected in fibre junction portion with pre-buried optical fiber (6) and continues.
3. optical fiber cold connection lock pin attachment structure according to claim 1 is characterized in that: described second lock pin (3) is provided with the plug core tail handle (4) that is used to lead corresponding to the other end that links to each other with connecting pipe (2).
4. optical fiber cold connection lock pin attachment structure according to claim 3, it is characterized in that: be provided with the jack (9) that distributes along plug core tail handle (4) length direction in the described plug core tail handle (4), described jack (9) is connected with second lock pin (3) and vent port (7).
5. optical fiber cold connection lock pin attachment structure according to claim 3 is characterized in that: described plug core tail handle (4) is provided with the gland (5) that is used to compress plug core tail handle (4).
6. optical fiber cold connection lock pin attachment structure according to claim 1 is characterized in that: described first lock pin (1) is concentric distribution with connecting pipe (2).
7. optical fiber cold connection lock pin attachment structure according to claim 4 is characterized in that: described jack (9) is V-shaped.
8. optical fiber cold connection lock pin attachment structure according to claim 1 is characterized in that: be provided with optical fiber matching fluid in the described fibre junction portion.
9. optical fiber cold connection lock pin attachment structure according to claim 1 is characterized in that: described vent port (7) is positioned at the joint portion of connecting pipe (2) and second lock pin (3).
10. optical fiber cold connection lock pin attachment structure according to claim 1 is characterized in that: an end of described first lock pin (1), second lock pin (3) stretches into respectively in the connecting pipe (2), and fixedlys connected with connecting pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201034100U CN201984187U (en) | 2011-04-11 | 2011-04-11 | Connecting structure of optical fiber cold connection inserting core body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201034100U CN201984187U (en) | 2011-04-11 | 2011-04-11 | Connecting structure of optical fiber cold connection inserting core body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984187U true CN201984187U (en) | 2011-09-21 |
Family
ID=44611645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201034100U Expired - Fee Related CN201984187U (en) | 2011-04-11 | 2011-04-11 | Connecting structure of optical fiber cold connection inserting core body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984187U (en) |
-
2011
- 2011-04-11 CN CN2011201034100U patent/CN201984187U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20140411 |