CN209117916U - A kind of double APC lock pin adapters of high-precision - Google Patents
A kind of double APC lock pin adapters of high-precision Download PDFInfo
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- CN209117916U CN209117916U CN201821982542.3U CN201821982542U CN209117916U CN 209117916 U CN209117916 U CN 209117916U CN 201821982542 U CN201821982542 U CN 201821982542U CN 209117916 U CN209117916 U CN 209117916U
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- lock pin
- sleeve
- positioning seat
- adapters
- precision
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Abstract
The utility model relates to technical field of optical fiber communication, in particular to the double APC lock pin adapters of a kind of high-precision, two end faces of lock pin are all inclined-planes, reduce influence of the Fresnel reflection phenomenon to insertion loss.Lock pin adapter shell covers on the outside of sleeve, the internal diameter of its one end for being used to install lock pin is then greater than sleeve outer diameter, then the insertion end of lock pin positioning seat is stuck in inside lock pin adapter shell between cartridge exterior in lock pin insertion sleeve, and the clamping end of lock pin positioning seat wraps one section of lock pin periphery.By lock pin positioning seat come connecting core insert adapter shell, lock pin and sleeve, close-fitting structure is formed by controlling the dimensional fits between these components, the assembling for not needing to realize fiber stub adapter using welding or mode for dispensing glue and docking end adapter lock pin is fixed, easily controllable craft precision, and production cost is reduced, realize the double optimization of product quality and cost.
Description
Technical field
The utility model relates to technical field of optical fiber communication, in particular to the double APC lock pin adapters of a kind of high-precision.
Background technique
Fiber optic communication is, by photoelectric conversion, to use up using light as carrier wave to transmit the communication system of information, laser and light
Fine lock pin adapter is the important component of optical fiber telecommunications system.Individual laser package technical requirements are higher, optical chip work hair
Optical transport out is to fiber stub adapter coupled end, when being transmitted to docking end adapter lock pin by fiber adapter,
Two insertion core end faces can all generate Fresnel reflection phenomenon, and reflected light will directly affect the normal work of optical device, reduce product
Quality.But fiber stub adapter also requires low insertion loss, otherwise will have a direct impact on optical fiber as transmission connector
The quality of communication system.
Currently, being in fiber stub adapter coupled end and butt end commonly used in the method for reducing Fresnel reflection phenomenon
Adapter lock pin is designed to oblique 8 degree of angles inclined-plane, in this way, optical transport to the fiber stub that laser optical chip operation issues is adapted to
When device, the reflected light of generation will not be reflected back vertically, realize the normal work of laser.But the design on inclined-plane is not easy to fill
Match, adapter manufacturer generally realizes fiber stub adapter using welding or mode for dispensing glue and docks end adapter lock pin
Assembling is fixed.In assembling process, lock pin is first pressed in positioning lock pin seat, by the oblique 8 degree of angles in lock pin seat flat Bit Grinding lock pin both ends,
Then assembled lock pin positioning seat is assembled in adapter to trap, finally, being directly realized by production by welding or gluing process
Product assembling is fixed.But the processing cost of welding is higher, is unfavorable for producing in enormous quantities；After adapter assembles, inner space is tight
It gathers, more demanding to mobility, the glue amount of glue, craft precision is difficult to ensure, so that the product reliability risk of gluing process
It is higher.
Utility model content
The purpose of this utility model is that avoid above-mentioned shortcoming in the prior art and provide a kind of production it is easy,
The double APC lock pin adapters of lower-cost high-precision.
To achieve the above object, provide a kind of high-precision double APC lock pin adapters, including coaxial lock pin adapter outside
Shell, lock pin, sleeve and lock pin positioning seat, two end faces of the lock pin be all with the veritcal linearity of lock pin axis in an angle
Inclined-plane, lock pin adapter shell covers on the outside of sleeve and is interference fitted with it, and lock pin adapter shell is for installing lock pin
The internal diameter of one end is greater than sleeve outer diameter, and sleeve diameter matches with lock pin outer diameter, and lock pin positioning seat includes for wrapping described insert
The insertion end that one section of core periphery and the clamping end being interference fitted with it and internal diameter and sleeve outer diameter match, the lock pin insertion set
The insertion end of the then described lock pin positioning seat is stuck in inside lock pin adapter shell between cartridge exterior in cylinder, the lock pin and institute
State sleeve interference fit.
Wherein, two opposite lateral surfaces of the clamping end of the lock pin positioning seat are the planes being parallel to each other.
Wherein, the inclined-plane of the end face of the lock pin inclines from a plane of clamping end to another plane corresponding thereto
Tiltedly.
Wherein, the clamping end inside lock pin positioning seat and between insertion end be equipped with circular step, the lock pin positioning seat
Insertion end is stuck in inside lock pin adapter shell between cartridge exterior, then the end face of the circular step resists sleeve end face.
Wherein, inside lock pin adapter shell with one section be interference fitted on the outside of sleeve and greater than one section of sleeve outer diameter
Junction forms anchor ring, and the insertion end of the lock pin positioning seat resists the anchor ring.
Wherein, the contact surface of the insertion end of the anchor ring and the lock pin positioning seat is set as cambered surface.
Wherein, two end faces of the lock pin are the docking in the coupled end and insertion sleeve exposed outside adapter shell
End, the tilt angle and direction of coupled end and butt end are all identical.
Wherein, the angle of the angle is 5~13 degree.
Wherein, the sleeve is ceramic sleeve.
Wherein, including the fibre core in the axle center of lock pin is arranged in.
The utility model has the advantages that the double APC lock pin adapters of the high-precision, two end faces of lock pin are all the vertical lines with lock pin axis
The inclined-plane of shape in an angle, reduces influence of the Fresnel reflection phenomenon to insertion loss, and by lock pin positioning seat come
Connecting core insert adapter shell, lock pin and sleeve form close-fitting structure by controlling the dimensional fits between these components, are not required to
It to be fixed using the assembling that fiber stub adapter is realized in welding or mode for dispensing glue and docks end adapter lock pin, be easy to control
Craft precision processed, and production cost is reduced, realize the double optimization of product quality and cost.
Detailed description of the invention
Fig. 1 is the external structure schematic diagram of the double APC lock pin adapters of the high-precision.
Fig. 2 is the disassemblying structure schematic diagram of the double APC lock pin adapters of the high-precision.
Fig. 3 is the fit structure schematic diagram of the double APC lock pin adapters of the high-precision.
Fig. 4 is the end structure illustration of the double APC lock pin adapters of the high-precision.
Specific embodiment
The double APC lock pin adapters of the high-precision are as shown in Figures 1 to 3, and lock pin adapter shell 1 including coaxial arrangement is inserted
The axle center of lock pin 2 is arranged in core 2, sleeve 3 and lock pin positioning seat 4, fibre core.Two end faces of lock pin 2 are exposed outside adapter
The butt end in coupled end and insertion ceramic sleeve 3 outside shell, coupled end and butt end are all the veritcal linearities with 2 axis of lock pin
At the inclined-plane of one 8 degree of angles (angle of the angle is between 5~13 degree), and the inclination angle alpha of the two, β and direction
It is all identical, reduce influence of the Fresnel reflection phenomenon to insertion loss.
1 set of lock pin adapter shell is interference fitted on the outside of ceramic sleeve 3 and with it, and lock pin adapter shell 1 is for pacifying
The internal diameter for plugging one end of core 2 is greater than 3 outer diameter of ceramic sleeve, and 3 internal diameter of ceramic sleeve matches with 2 outer diameter of lock pin, lock pin positioning
Seat 4 includes for wrapping one section of the periphery of lock pin 2 and the clamping end being interference fitted with it and internal diameter match with 3 outer diameter of ceramic sleeve
Insertion end, the insertion end that lock pin 2 is inserted into then lock pin positioning seat 4 in ceramic sleeve 3 is stuck in 1 inside of lock pin adapter shell and pottery
Between 3 outside of insulator cylinder, lock pin 2 and ceramic sleeve 3 are interference fitted.By lock pin positioning seat 4 come connecting core insert adapter shell
1, lock pin 2 and ceramic sleeve 3 form close-fitting structure by controlling the dimensional fits between these components, do not need using welding
Or mode for dispensing glue realizes that fiber stub adapter and the assembling of docking end adapter lock pin 2 are fixed, easily controllable technique essence
Degree, and production cost is reduced, realize the double optimization of product quality and cost.
Specifically, two opposite lateral surfaces of the clamping end of lock pin positioning seat 4 be it is as shown in Figure 4 be parallel to each other it is flat
The flat position 41 for clamping that face is formed, the inclined-plane of the end face of lock pin 2 is from the flat position 41 of the upper surface of clamping end to corresponding thereto
Following flat position 41 tilts.The flat position 41 of lock pin positioning seat 4 is corresponding with the angle of insertion core end face in the lock pin adapter, makes
When with lock pin adapter, it is only necessary to which the direction and angle of observing flat position 41 are assured that direction and the angle of insertion core end face, protect
The Plug Action hindered when optical device product uses is not easy to make mistakes, has high duplication.
Wherein, the clamping end inside lock pin positioning seat 4 and between insertion end be equipped with circular step, lock pin positioning seat 4 insert
Enter end to be stuck between 1 inside of lock pin adapter shell and 3 outside of ceramic sleeve, then the end face of the circular step resists ceramic sleeve
3 end faces.
Wherein, with one section be interference fitted on the outside of ceramic sleeve 3 and greater than ceramic sleeve 3 inside lock pin adapter shell 1
One section of junction of outer diameter forms anchor ring 11, and the insertion end of lock pin positioning seat 4 resists the anchor ring 11.Specifically, anchor ring 11 with
The contact surface of the insertion end of lock pin positioning seat 4 is set as cambered surface.
The production process of the double APC lock pin adapters of the high-precision is as follows:
(1) flat position at the two of lock pin positioning seat, the two central symmetry are processed；
(2) match board using Pneumatic pressure, lock pin 2 is pressed into lock pin positioning seat 4, completes the group of lock pin 2 and lock pin positioning seat 4
Dress；
(3) two flat positions 41 of optical fiber lapping clamp lock pin positioning seat 4 are used, two ends of lock pin 2 are then ground
Face makes it at oblique 8 degree of angles, guarantees the high consistency of lock pin positioning seat 4 flat position 41 and the oblique 8 degree of angles in 2 both ends of lock pin；
(4) ceramic sleeve 3 is inserted in lock pin adapter shell 1, completes the group of lock pin adapter shell 1 and ceramic sleeve 3
Dress；
(5) match board using Pneumatic pressure, the lock pin 2 of ground angle is adapted to by the flat position of lock pin positioning seat 4 and lock pin
The flat position of device shell 1 is pressed into lock pin adapter shell 1, completes the assembling of double APC lock pin adapters.
Claims (10)
1. a kind of double APC lock pin adapters of high-precision, which is characterized in that including coaxial lock pin adapter shell, lock pin, sleeve
With lock pin positioning seat, two end faces of the lock pin are all the inclined-plane with the veritcal linearity of lock pin axis in an angle, lock pin
Adapter shell is covered on the outside of sleeve and is interference fitted with it, and the internal diameter of one end that lock pin adapter shell is used to install lock pin is big
In sleeve outer diameter, sleeve diameter matches with lock pin outer diameter, lock pin positioning seat include for wrap one section of lock pin periphery and
The insertion end that the clamping end being interference fitted with it and internal diameter and sleeve outer diameter match, the lock pin are inserted into sleeve then described insert
The insertion end of core positioning seat is stuck in inside lock pin adapter shell between cartridge exterior, and the lock pin and the sleeve interference are matched
It closes.
2. a kind of double APC lock pin adapters of high-precision according to claim 1, which is characterized in that the lock pin positioning seat
Two opposite lateral surfaces of clamping end be the plane being parallel to each other.
3. a kind of double APC lock pin adapters of high-precision according to claim 2, which is characterized in that the end face of the lock pin
Inclined-plane from a plane of clamping end to another plane inclination corresponding thereto.
4. a kind of double APC lock pin adapters of high-precision according to claim 1, which is characterized in that inside lock pin positioning seat
Clamping end and insertion end between be equipped with circular step, the insertion end of the lock pin positioning seat is stuck in inside lock pin adapter shell
Between cartridge exterior, then the end face of the circular step resists sleeve end face.
5. a kind of double APC lock pin adapters of high-precision according to claim 1 or 4, which is characterized in that outside lock pin adapter
Anchor ring is formed with one section be interference fitted on the outside of sleeve and greater than one section of junction of sleeve outer diameter inside shell, the lock pin is fixed
The insertion end of position seat resists the anchor ring.
6. a kind of double APC lock pin adapters of high-precision according to claim 5, which is characterized in that the anchor ring with it is described
The contact surface of the insertion end of lock pin positioning seat is set as cambered surface.
7. a kind of double APC lock pin adapters of high-precision according to claim 1, which is characterized in that two of the lock pin
End face is the butt end in the coupled end and insertion sleeve exposed outside adapter shell, the tilt angle of coupled end and butt end
It is all identical with direction.
8. according to claim 1 or 7 or a kind of double APC lock pin adapters of high-precision, which is characterized in that the angle
Angle is 5~13 degree.
9. a kind of double APC lock pin adapters of high-precision according to claim 1, which is characterized in that the sleeve is ceramics
Sleeve.
10. a kind of double APC lock pin adapters of high-precision according to claim 1, which is characterized in that including being arranged in lock pin
Axle center fibre core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821982542.3U CN209117916U (en) | 2018-11-28 | 2018-11-28 | A kind of double APC lock pin adapters of high-precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821982542.3U CN209117916U (en) | 2018-11-28 | 2018-11-28 | A kind of double APC lock pin adapters of high-precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209117916U true CN209117916U (en) | 2019-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821982542.3U Active CN209117916U (en) | 2018-11-28 | 2018-11-28 | A kind of double APC lock pin adapters of high-precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209117916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112077705A (en) * | 2020-09-18 | 2020-12-15 | 汇聚科技（惠州）有限公司 | APC grinding process and structure of mini type MT ferrule |
| CN112658980A (en) * | 2020-12-17 | 2021-04-16 | 广昌县中广创新电子科技有限公司 | double-APC core insert grinding disc of optical fiber adapter |
-
2018
- 2018-11-28 CN CN201821982542.3U patent/CN209117916U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112077705A (en) * | 2020-09-18 | 2020-12-15 | 汇聚科技（惠州）有限公司 | APC grinding process and structure of mini type MT ferrule |
| CN112077705B (en) * | 2020-09-18 | 2022-04-12 | 汇聚科技（惠州）有限公司 | APC grinding process and structure of mini type MT ferrule |
| CN112658980A (en) * | 2020-12-17 | 2021-04-16 | 广昌县中广创新电子科技有限公司 | double-APC core insert grinding disc of optical fiber adapter |
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