CN221406102U - Optical fiber connector - Google Patents
Optical fiber connector Download PDFInfo
- Publication number
- CN221406102U CN221406102U CN202420118509.5U CN202420118509U CN221406102U CN 221406102 U CN221406102 U CN 221406102U CN 202420118509 U CN202420118509 U CN 202420118509U CN 221406102 U CN221406102 U CN 221406102U
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- Prior art keywords
- optical fiber
- side end
- connecting pipe
- nut
- connecting piece
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 92
- 238000007789 sealing Methods 0.000 claims abstract description 43
- 239000000565 sealant Substances 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 21
- 230000003287 optical effect Effects 0.000 abstract description 2
- 230000008054 signal transmission Effects 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The utility model discloses an optical fiber connector, which comprises a nut connecting piece, an external thread connecting pipe, an optical fiber inserting core and a connecting sleeve; the first side end of the optical fiber core insert is fixedly connected with the external thread connecting pipe through a nut connecting piece, and the second side end of the optical fiber core insert is spliced with the connecting sleeve and is in sealing fit through sealant; an annular sealing groove is arranged on the outer wall of the optical fiber lock pin and close to the first side end, a sealing ring is arranged in the annular sealing groove, and the first side end of the optical fiber lock pin is in sealing fit with the inner wall of the external thread connecting pipe through the sealing ring. The optical fiber connector is fixedly connected with the external thread connecting pipe through the nut connecting piece, so that the optical fiber connector can be connected more simply and conveniently, and the sealing ring is arranged on the outer wall of the optical fiber lock pin and close to the first side end, so that the connection between the optical fiber lock pin and the external thread connecting pipe has better waterproof sealing performance, the sealing performance between the optical fiber lock pin and the external thread connecting pipe can be ensured, and the optical signal transmission between optical fibers can be ensured.
Description
Technical Field
The application relates to the field of optical fiber communication accessories, in particular to an optical fiber connector.
Background
The optical fiber connector is a fitting for optical fiber connection, the waterproof performance of the existing optical fiber connector is poor, water is easy to enter at the interface part of the optical fiber, especially when rainwater is more, if the optical fiber connector is soaked in water, the water easily enters the optical fiber connector, and the optical fiber communication system is damaged, so that the existing optical fiber connector needs to be improved to improve the waterproof performance of the optical fiber connection part.
Disclosure of Invention
The present utility model aims to solve the problem of poor waterproof performance of the conventional optical fiber connector described in the background art, and provides an optical fiber connector capable of solving the problem.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: an optical fiber connector comprises a nut connecting piece, an external thread connecting pipe, an optical fiber inserting core and a connecting sleeve;
The first side end of the optical fiber core insert is fixedly connected with the external thread connecting pipe through a nut connecting piece, and the second side end of the optical fiber core insert is spliced with the connecting sleeve and is in sealing fit through sealant;
An annular sealing groove is arranged on the outer wall of the optical fiber lock pin and close to the first side end, a sealing ring is arranged in the annular sealing groove, and the first side end of the optical fiber lock pin is in sealing fit with the inner wall of the external thread connecting pipe through the sealing ring.
In the above scheme, the fiber plug includes first side, second side and middle part spacing section, and first side is cylindrical tubulose, and the external diameter of first side suits with the hole aperture of external screw thread connecting pipe, is equipped with spacing step face between first side and middle part spacing section, and spacing step face is close to the location step face phase-match of pipe mouth with the external screw thread connecting pipe, annular seal groove sets up on the outer wall of middle part spacing section to be located the position that is close to spacing step face, still be equipped with spacing bulge loop on the outer wall of middle part spacing section, is equipped with spacing mouth in the one end that the nut connecting piece kept away from the external screw thread connecting pipe, and the nut connecting piece cup joints on the fiber plug to carry out axial spacing through spacing mouth and spacing bulge loop's cooperation, make fiber plug and external screw thread connecting pipe fixed connection. Through this kind of setting, can make the connection leakproofness between fiber lock pin and the external screw thread connecting pipe better, make fiber connector have better waterproof nature, realize the fixed connection of fiber lock pin and external screw thread connecting pipe through the nut connecting piece, can make the connection of two more stable.
In the above scheme, still be equipped with the draw-in groove on the spacing section in middle part, be equipped with the jump ring in the draw-in groove, the jump ring cooperates with the spacing mouth of nut connecting piece, carries out axial spacing to the nut connecting piece. Through setting up the jump ring, can carry out axial spacing to the nut connecting piece, before the nut connecting piece is connected with the external screw thread connecting pipe, prevent the separation of nut connecting piece and optic fibre lock pin.
In the above scheme, the second side end is cylindrical, and a plurality of sealing grooves are distributed on the outer wall of the second side end, and the second side end is connected with the connecting sleeve in a sealing fit manner through sealant. Through setting up multichannel seal groove to make the second side end and the adapter sleeve sealing connection of light lock pin through the sealant, can make the junction of two have better waterproof leakproofness.
In the scheme, a plurality of positioning step surfaces matched with the armored fiber cable are arranged inside the connecting sleeve, and the armored fiber cable is fixedly connected with the connecting sleeve in a sealing mode through sealant. Through set up a plurality of location step faces in the adapter sleeve inside, when armor fiber cable and adapter sleeve connection, can adjust the grafting position of armor fiber cable in the adapter sleeve, can make the connection of two more firm through the sealant, has better waterproof leakproofness moreover.
In the above scheme, two lock nuts are arranged on the external thread connecting pipe, and the two lock nuts are used for locking and positioning of the nut connecting piece. By means of the arrangement, the nut connecting pieces connected to the two sides of the external threaded connecting pipe can be locked and positioned.
The utility model has the positive effects that: 1) According to the optical fiber connector, the nut connecting piece is fixedly connected with the external thread connecting pipe, so that the optical fiber connector can be connected more simply and conveniently, and the sealing ring is arranged on the outer wall of the optical fiber ferrule close to the first side end, so that the optical fiber ferrule and the external thread connecting pipe are connected with better waterproof tightness, and even if the connector is soaked in water, the tightness between the optical fiber ferrule and the external thread connecting pipe can be ensured, and the optical signal transmission between optical fibers is ensured; 2) The optical fiber connector has a simple structure, the connecting sleeve, the optical fiber lock pin and the nut connecting piece can be connected in advance, when in field connection, the optical fiber lock pins at two sides are only required to be inserted into the external thread connecting pipe and then screwed by the nut connecting piece, and the operation is simple and convenient, and the connection efficiency is high.
Drawings
Fig. 1 is a schematic structural view of an optical fiber connector according to the present utility model.
Fig. 2 is a schematic cross-sectional view of an optical fiber connector according to the present utility model.
FIG. 3 is a schematic diagram of a connection structure of an optical fiber ferrule and a nut connector.
The reference numerals in the figures are: the nut connector 1, a limiting port 11, an external threaded connecting pipe 2, a positioning step surface 21, an optical fiber ferrule 3, a first side end 31, a second side end 32, a middle limiting section 33, a limiting step surface 34, an annular sealing groove 35, a limiting convex ring 36, a clamping groove 37, a sealing groove 38, a connecting sleeve 4, a positioning step surface 41, an armored optical fiber cable 5, a clamping spring 6, a locking nut 7 and a sealing ring 8.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described by means of examples, and it is obvious that the described examples are only some, but not all, examples of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The optical fiber connector shown in fig. 1-3 comprises a nut connector 1, an external thread connecting pipe 2, an optical fiber inserting core 3 and a connecting sleeve 4, wherein the nut connector 1, the external thread connecting pipe 2, the optical fiber inserting core 3 and the connecting sleeve 4 can be made of parts made of the same materials as the existing optical fiber connector, and preferably can be made of anti-corrosion metal parts.
The nut connecting piece 1 can be an outer hexagonal nut piece, one end of the nut connecting piece 1 is provided with a threaded opening, the other end of the nut connecting piece is provided with a limiting opening 11, the diameter of the limiting opening 11 is required to ensure the passing of the second side end and the middle limiting section of the optical fiber ferrule, and the diameter of the limiting opening is required to be smaller than the outer diameter of the limiting convex ring on the optical fiber ferrule 3.
The external thread connecting pipe 2 is a cylindrical tubular piece, external threads matched with the nut connecting piece 1 are distributed on the outer wall of the external thread connecting pipe 2, positioning step surfaces 21 are arranged on the inner walls of the two ends of the external thread connecting pipe 2, the diameter of the outer side part of each positioning step surface 21 is larger than that of the inner side part of the external thread connecting pipe 2, and the diameter of the outer side part of each positioning step surface 21 is matched with a limiting step surface 41 on the optical fiber ferrule 3. Two lock nuts 7 are arranged on the external thread connecting pipe, and the two lock nuts 7 are used for locking and positioning the nut connecting piece 1.
The fiber stub 3 includes a first side end 31, a second side end 32, and a mid-stop section 33.
The first side end 31 is cylindrical tubular, the outer diameter of the first side end 31 is matched with the bore diameter of the external thread connecting pipe 2, a limiting step surface 34 is arranged between the first side end 31 and the middle limiting section 33, the limiting step surface 34 is matched with the positioning step surface 21 of the external thread connecting pipe 2, which is close to the pipe opening, an annular sealing groove 35 is arranged on the outer wall of the middle limiting section 33, the annular sealing groove 35 is positioned at a position close to the limiting step surface, a sealing ring 8 is arranged in the annular sealing groove 35, and a limiting convex ring 36 is further arranged on the outer wall of the middle limiting section 33. When the nut connecting piece 1 is sleeved on the optical fiber inserting core 3, the axial limiting is carried out through the matching of the limiting opening 11 and the limiting convex ring 36 on the nut connecting piece 1, and the first side end 31 of the optical fiber inserting core 3 is fixedly connected with the external thread connecting pipe 2 through the nut connecting piece 1.
The middle limiting section 33 is also provided with a clamping groove 37, a clamping spring 6 is arranged in the clamping groove 37, and the clamping spring 6 is matched with a limiting opening of the nut connecting piece 1 to axially limit the nut connecting piece 1.
The second side end 32 is cylindrical, a plurality of sealing grooves 38 are distributed on the outer wall of the second side end 32, and the second side end 32 is connected with the connecting sleeve 4 in a sealing fit manner through sealing glue.
The connecting sleeve 4 is a tubular piece, one end of the connecting sleeve 4 is used for being connected with the optical fiber inserting core 3, and the other end of the connecting sleeve 4 is used for being connected with the armored optical fiber cable 5.
One end of the connecting sleeve 4 connected with the optical fiber inserting core 3 is a cylindrical hole, one end of the connecting sleeve 4 connected with the armored optical fiber cable 5 is provided with a plurality of positioning step surfaces 41 matched with the armored optical fiber cable 5, and the armored optical fiber cable 5 is fixedly connected with the connecting sleeve 4 in a sealing way through sealant. Through set up a plurality of location step faces 41 in adapter sleeve 4 inside, when armor fiber cable 5 and adapter sleeve 4 are connected, can adjust the grafting position of armor fiber cable 5 in adapter sleeve 4, can make the connection of two more firm through the sealant, has better waterproof leakproofness moreover.
The waterproof improvement scheme of the optical fiber connector can be used for various optical fiber connectors, such as an optical fiber connector with the model SMA 905.
When the optical fiber connector is used, the nut connecting piece is sleeved on the optical fiber inserting core, the limiting opening of the nut connecting piece is positioned on the middle limiting section, the displacement of the nut connecting piece towards the first side end direction is limited by the limiting convex ring, then the clamping spring is arranged in the clamping groove on the middle limiting section, the displacement of the nut connecting piece towards the second side end direction is limited by the clamping spring, waterproof sealing glue is coated on the outer surface of the armor layer of the armored optical fiber cable, the end parts of the armored optical fiber cable are detached, the armored optical fiber cable is inserted into the connecting sleeve, the armor layer and the inner sheath layer are sequentially limited with the positioning step surface in the connecting sleeve, the wire core of the optical fiber passes through the connecting sleeve and passes through the optical fiber inserting core, the waterproof sealing glue is coated on the outer wall of the second side end of the optical fiber inserting core, the second side end of the optical fiber inserting core is inserted into the connecting sleeve, after the glue is solidified, the armored optical fiber cable, the connecting sleeve, the nut and the nut are connected with the connecting sleeve in a field, the two ends of the armored optical fiber cable are respectively arranged at the connecting sleeve, the end parts of the armored optical fiber cable and the connecting sleeve and the optical fiber inserting core are in contact with the first side of the connecting sleeve, the end face of the optical fiber inserting core is tightly matched with the outer side of the connecting sleeve, and the end face of the optical fiber inserting core is tightly connected with the outer end of the connecting sleeve through the positioning step surface of the optical fiber inserting core, and the end face of the optical fiber inserting core is simultaneously, and the end face is tightly contacted with the end face of the connecting sleeve, the connection of the optical fiber cable can be completed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An optical fiber connector, characterized in that: the device comprises a nut connecting piece, an external thread connecting pipe, an optical fiber core insert and a connecting sleeve;
The first side end of the optical fiber core insert is fixedly connected with the external thread connecting pipe through a nut connecting piece, and the second side end of the optical fiber core insert is spliced with the connecting sleeve and is in sealing fit through sealant;
An annular sealing groove is arranged on the outer wall of the optical fiber lock pin and close to the first side end, a sealing ring is arranged in the annular sealing groove, and the first side end of the optical fiber lock pin is in sealing fit with the inner wall of the external thread connecting pipe through the sealing ring.
2. The fiber optic connector of claim 1, wherein: the optical fiber lock pin comprises a first side end, a second side end and a middle limiting section, wherein the first side end is cylindrical, the outer diameter of the first side end is matched with the bore diameter of the external threaded connecting pipe, a limiting step surface is arranged between the first side end and the middle limiting section and is matched with the positioning step surface of the external threaded connecting pipe, which is close to the pipe opening, the annular sealing groove is arranged on the outer wall of the middle limiting section and is positioned at a position close to the limiting step surface, a limiting convex ring is further arranged on the outer wall of the middle limiting section, a limiting opening is formed in one end, far away from the external threaded connecting pipe, of the nut connecting piece, and the nut connecting piece is sleeved on the optical fiber lock pin and axially limited through the matching of the limiting opening and the limiting convex ring, so that the optical fiber lock pin is fixedly connected with the external threaded connecting pipe.
3. The fiber optic connector of claim 2, wherein: the middle limiting section is also provided with a clamping groove, a clamping spring is arranged in the clamping groove, and the clamping spring is matched with a limiting opening of the nut connecting piece to axially limit the nut connecting piece.
4. The fiber optic connector of claim 1, wherein: the second side end is cylindrical, a plurality of sealing grooves are distributed on the outer wall of the second side end, and the second side end is connected with the connecting sleeve in a sealing fit manner through sealant.
5. The fiber optic connector of claim 1, wherein: the inside of the connecting sleeve is provided with a plurality of positioning step surfaces matched with the armored fiber cable, and the armored fiber cable is fixedly connected with the connecting sleeve in a sealing way through sealant.
6. The fiber optic connector of claim 1, wherein: and two locking nuts are arranged on the external thread connecting pipe and are used for locking and positioning the nut connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420118509.5U CN221406102U (en) | 2024-01-17 | 2024-01-17 | Optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420118509.5U CN221406102U (en) | 2024-01-17 | 2024-01-17 | Optical fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221406102U true CN221406102U (en) | 2024-07-23 |
Family
ID=91930136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420118509.5U Active CN221406102U (en) | 2024-01-17 | 2024-01-17 | Optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221406102U (en) |
-
2024
- 2024-01-17 CN CN202420118509.5U patent/CN221406102U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |