CN201876574U - Needle-type optical fiber cold joint - Google Patents
Needle-type optical fiber cold joint Download PDFInfo
- Publication number
- CN201876574U CN201876574U CN2010206500183U CN201020650018U CN201876574U CN 201876574 U CN201876574 U CN 201876574U CN 2010206500183 U CN2010206500183 U CN 2010206500183U CN 201020650018 U CN201020650018 U CN 201020650018U CN 201876574 U CN201876574 U CN 201876574U
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- Prior art keywords
- optical fiber
- type optical
- needle
- fiber cold
- cold joint
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Abstract
The utility model discloses a needle-type optical fiber cold joint comprising three round needles and a thermal contraction pipe, wherein the three round needles are respectively arranged in the thermal contraction pipe to form the shape of a triangle, and the tangent planes of the three round needles tightly abut against one another so as to form a sealed cavity. The needle-type optical fiber cold joint can prevent the interior thereof from being deformed due to the external environment, avoid the pollution and loss of matched oil in the cavity, prevent optical fibers from being influenced by environmental factors during junction, and is easier for on-site operating personnel to operate, thus improving the assembly efficiency as well as the reliability of optical-fibre junction; and besides, the needle-type optical fiber cold joint can be applicable to various severe environments, and reduce the occurrence of post-stage failures, thus having outstanding utility value.
Description
Technical field
The utility model relates to the optical fiber interconnection technique that optical fiber becomes the end splicing point, more particularly, relates to a kind of pin type optical fiber cold connector.
Background technology
Become termination to continue and do not hold the process that flexibly connects at optical fiber exactly.The flexible connection of optical fiber is generally finished by fiber active linker, but traditional flexible jumper manufacturing process is very complicated, and need those skilled in the art to operate, therefore fabrication cycle is also longer, and to use this joints of optical fibre be impossible to the optical fiber connector in comprehensive wiring working-yard or newly-built building.Adopt the optical fiber cold joint to become the end technology now mostly for this reason, the cold connector version of existing fiber cold joint as shown in Figure 1, the main clip type structure that adopts, pat the end of optical fiber 1 whole with cutter respectively at fibre junction point before continuing, only need then with fiber stripping instrument peeling optical fibre coat, and with cutter cutting optical fibre end face, at last optical fiber is penetrated the V-type groove internal fixation of plastic bottom board 2, cover the loam cake 3 of fixed fiber 1 again, whole process only needs 30 seconds times spent.Need to add behind the coupling oil again with fiber alignment but the V-type groove is inner before fiber alignment, realize the normal transmission of light signal, this kind continuation method tool using is simple, installation is convenient and operating personnel also need not professional training, makes fiber-to-the-home link design more accurate rationally.Because existing cold connector splicing point in handshaking procedure must add the coupling oil of the effect of remedying, and cold connector fixes optical fiber by plastic bottom board 2 and loam cake 3, this structure and blow-by, and be 0.125mm at the diameter of the V-type groove of plastic bottom board 2, the recoverable amount of coupling oil is considerably less in the space, therefore cause coupling oil contamination easily in the bigger place of high temperature, low temperature or dust storm, and cause coupling oil to run off in long-time the use easily, cause the excessive or failure that continues of connecting loss.Moreover if careless slightly in wearing fine process, the plastics of optical fiber 1 easy scratch V-type groove are mouth, if bring the chip of scratch into V-type groove inner fiber splicing point, can stop that then the butt joint of fibre junction is fitted, even stop that light passes through, and causes the obstructed light of light signal.In addition in order to realize the well butt joint in the V-type groove of two optical fiber, require very high to the processing dimension of V type groove and the material of plastic bottom board, if plastic bottom board causes the distortion of V-type groove under such environmental effects, then can not penetrate optical fiber smoothly, even perhaps optical fiber penetrates, can be because of size does not meet core size yet, cause the optical fiber distortion that suffers oppression, perhaps two fiber alignment dislocation cause light signal not transmit.
The utility model content
Coupling oil is polluted easily or is run off when existing the optical fiber cold joint to adopt packing less clip type structure in the prior art, and the V-type groove of plastic bottom board is easily affected by environment and be out of shape, thereby cause the defective of fiber alignment inconvenience, the purpose of this utility model provides a kind of pin type optical fiber cold connector that carries out fiber alignment that can be convenient and reliable.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of pin type optical fiber cold connector comprises three round needles and heat-shrink tube, and described three round needles all are located in the heat-shrink tube, be the product shape and arrange, and the tangent plane of three round needles closely offsets and forms an airtight cavity.
Described round needle is a stainless steel.
The diameter and the fibre diameter of described cavity are complementary.
The diameter of described heat-shrink tube and three round needles are the product shape and arrange the circle diameter that forms and be complementary.
Compared with prior art, adopt pin type optical fiber cold connector of the present utility model, can not cause internal modification because of the variation of external environment, also can not cause the pollution and the loss of matching fluid, not be subjected to such environmental effects, site operation personnel to be easier to operation when making fibre junction, thereby improved the reliability of packaging efficiency and fibre junction, can be applicable to various rugged surroundings, reduce the generation of later stage fault, have significant practical value.
Description of drawings
Fig. 1 is the cross-sectional view of clip type structured optical fiber cold connector in the prior art.
Fig. 2 is the cross-sectional view of a kind of pin type optical fiber cold connector of the present utility model.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
Embodiment
See also shown in Figure 2: pin type optical fiber cold connector of the present utility model, comprise that 12, three round needles 11 of three round needles 11 and heat-shrink tube all are located in the heat-shrink tube 12, be the product shape and arrange, and the tangent plane of three round needles 11 is closely contact mutually, is formed centrally circle in the tangent plane by three round needles; The diameter of described heat-shrink tube 12 and three round needles 11 are the product shape to be arranged the circle diameter that forms and is complementary, and like this by the contraction of heat-shrink tube 12, can make the tangent plane of three round needles 11 form an airtight cavity; The diameter and the fibre diameter of described cavity are complementary, and optical fiber 20 just can penetrate cavity as safe as a housely like this, and coupling oil can not run off in airtight cavity yet.
Described round needle 11 is a stainless steel, the site operation personnel not only can not cause scratch in wearing fine process like this, even the site environment very severe can not cause internal modification yet, do not hinder the butt joint of fibre junction to fit thereby more impurity can not brought into cavity.And stainless pin also has high-low temperature resistant, protection against the tide, antipollution, and weather resistance is superior characteristic very, is applicable to various rugged surroundings, can reduce the generation of later stage fault.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, all will drop in the scope of claim of the present utility model variation, the modification of the above embodiment.
Claims (4)
1. pin type optical fiber cold connector, it is characterized in that: comprise three round needles and heat-shrink tube, described three round needles all are located in the heat-shrink tube, be the product shape and arrange, and the tangent plane of three round needles closely offset and form an airtight cavity.
2. pin type optical fiber cold connector according to claim 1 is characterized in that: described round needle is a stainless steel.
3. pin type optical fiber cold connector according to claim 1 is characterized in that: the diameter and the fibre diameter of described cavity are complementary.
4. pin type optical fiber cold connector according to claim 1 is characterized in that: the diameter of described heat-shrink tube and three round needles are the product shape and arrange the circle diameter that forms and be complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206500183U CN201876574U (en) | 2010-12-09 | 2010-12-09 | Needle-type optical fiber cold joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206500183U CN201876574U (en) | 2010-12-09 | 2010-12-09 | Needle-type optical fiber cold joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201876574U true CN201876574U (en) | 2011-06-22 |
Family
ID=44164490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206500183U Expired - Lifetime CN201876574U (en) | 2010-12-09 | 2010-12-09 | Needle-type optical fiber cold joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201876574U (en) |
-
2010
- 2010-12-09 CN CN2010206500183U patent/CN201876574U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 212200 Jiangsu city of Zhenjiang province Yangzhong Chunliu Road No. 666 Patentee after: HongKong Science and Technology Co., Ltd. Address before: 212211 Zhenjiang City, Zhenjiang, Jiangsu Province, Yangzhong Development Zone, 580 mailbox Patentee before: Jiangsu Xiangjiang Science & Technology Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110622 |
|
| CX01 | Expiry of patent term |