CN212460114U - Optical fiber movable connector free of compression structure - Google Patents
Optical fiber movable connector free of compression structure Download PDFInfo
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- CN212460114U CN212460114U CN202021871870.3U CN202021871870U CN212460114U CN 212460114 U CN212460114 U CN 212460114U CN 202021871870 U CN202021871870 U CN 202021871870U CN 212460114 U CN212460114 U CN 212460114U
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- shaft section
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Abstract
The utility model relates to an optical fiber movable connector without a compression structure, which comprises an inner sleeve, a connecting sleeve, an outer sleeve, a ceramic contact pin and a protecting sleeve; the connecting sleeve comprises a first shaft section connected with the inner sleeve and a second shaft section connected with the protective sleeve, a step hole on the front side of the first shaft section is communicated with a through hole of the second shaft section, the first shaft section is clamped in a rear mounting hole of the inner sleeve, and the second shaft section is clamped in a front mounting hole of the protective sleeve; the ceramic contact pin is arranged between the inner sleeve and the connecting sleeve, two ends of a spring sleeved on a contact pin tail handle respectively prop against a groove tail seat of the ceramic contact pin and a ring table of a step hole of the connecting sleeve, the single-core optical fiber is fixed in a core hole of the plug base, aramid fiber and sheath of the optical cable are fixed in a fixing hole through epoxy resin glue, and the optical cable penetrates out of the connecting sleeve and the protective sleeve; the outer sleeve is sleeved on the inner sleeve and is screwed on the internal thread hole of the protective sleeve. The utility model discloses rational in infrastructure, assembly process is good, can improve the packaging efficiency, reduce the equipment defective rate, operation safe and reliable.
Description
Technical Field
The utility model relates to an exempt from optic fibre connector that lives of crimping structure belongs to the fiber connector technical field on the optical communication device.
Background
The optical fiber connector is a passive optical device which constitutes the most used optical fiber communication system, and is a device for detachably connecting optical fibers, wherein two end faces of the optical fibers are precisely butted, so that the optical energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent, and the influence on the system caused by the optical fiber connector intervening in an optical link is minimized.
The optical fiber connector generally comprises a ceramic contact pin, a connecting sleeve, a spring, an inner sleeve, a protecting sleeve and the like, wherein during assembly, a single-core optical fiber of the stripped optical cable is arranged in a core hole of the ceramic contact pin for solidification, the ceramic contact pin is arranged between the connecting sleeve and the inner sleeve, and the optical cable part with aramid fiber and the optical cable without stripping penetrate out of the ceramic contact pin and the connecting sleeve, so that the optical cable finally meets the pulling phenomenon of a user in the construction process, and the phenomenon of fiber breakage is avoided in the construction process. A structure is fixed the aramid fiber that the cable was opened and is shelled at the rear portion of adapter sleeve with the pressure equipment of big pressure pipe, fixes the cable crust at the rear portion of big pressure pipe with another little pressure pipe crimping again, so fixes the optical cable on the connector. This structure need use two crimping pipes, need use the press-connection machine to carry out the crimping to it in the assembling process. The other structure is that a plurality of fastener holes are arranged on the connecting sleeve along the length direction, the pressing claws at two sides of the metal fastener penetrate through the fastener holes on the connecting sleeve, and the metal fastener is pressed by the pressing machine to fix the cable sheath. All need adopt crimping technology to carry out fixed connection to the optical cable in the current fiber connector assembling process, not only the structure is loaded down with trivial details, still can increase man-hour cost and equipment cost, and crimping technology also has certain equipment defective rate simultaneously, can not further promote the packaging efficiency, and especially each part volume of optic fibre swing joint is less, adopts press crimping to cause staff's operation wounded easily, has certain operation safety risk.
Disclosure of Invention
The utility model aims at providing a rational in infrastructure, assembly process is good, can improve the packaging efficiency, reduce the equipment defective rate, operation safe and reliable's an exempt from compression joint structure's optic fibre connector.
The utility model discloses a technical scheme who reaches above-mentioned purpose is: the utility model provides an optical fiber connector of crimping structure exempts from which characterized in that: comprises an inner sleeve, a connecting sleeve, an outer sleeve, a ceramic contact pin and a protecting sleeve;
the inner sleeve comprises a front limiting hole, a stop shoulder and a rear mounting hole, the front limiting hole is used for being matched with the adapter in butt joint, the stop shoulder is used for limiting the slotted tail seat, and the rear mounting hole is used for being connected with the connecting sleeve;
the connecting sleeve comprises a first shaft section connected with the inner sleeve and a second shaft section connected with the protective sleeve, a step hole on the front side of the first shaft section is communicated with a through hole of the second shaft section, the first shaft section is clamped in a rear mounting hole of the inner sleeve, and the second shaft section is clamped in a front mounting hole of the protective sleeve;
the ceramic contact pin comprises a plug base fixed to a single-core optical fiber of the optical cable and a contact pin tail handle fixed to aramid fiber and a sheath of the optical cable, a groove tail seat is located at the rear part of the plug base, the ceramic contact pin is arranged between an inner sleeve and a connecting sleeve, one end of a spring sleeved on the contact pin tail handle is propped against the groove tail seat of the ceramic contact pin, the other end of the spring is propped against a ring table of a step hole of the connecting sleeve, the single-core optical fiber is fixed in a core hole of the plug base, a fixing hole larger than the core hole is formed in the contact pin tail handle, the aramid fiber and the sheath of the optical cable are fixed in the fixing hole through epoxy resin glue;
the outer sleeve comprises an outer convex block which is clamped with the adapter during butt joint and an inner threaded hole which is connected with the protective sleeve, and the outer sleeve is sleeved on the inner sleeve and is screwed on the inner threaded hole of the protective sleeve.
The utility model relates to an exempt from optic fibre connector of crimping structure is connected with endotheca and protecting pipe respectively through the adapter sleeve, and the overcoat sets up in the outside of protecting pipe, during the equipment, directly penetrates ceramic contact pin caudal peduncle with the optic cable crust and the aramid fiber of shelling out to fix in the fixed orifices through epoxy glue, realize fixed to the aramid fiber in the optical cable and optic cable crust. The utility model discloses improve optic fibre connector structure, rational in infrastructure, cancelled two crimping pipes, subtract the crimping process in the production process, reduced with man-hour cost and equipment cost, can improve fiber connector's packaging efficiency, reduce the equipment defective rate simultaneously, guaranteed product quality's stability, optimize assembly process, can practice thrift manual work, material cost, reduce the probability of incident.
Drawings
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an optical fiber connector of a crimping-free structure according to the present invention.
Fig. 2 is a schematic structural view of the connecting sleeve of the present invention.
Fig. 3 is a schematic sectional structure view of a-a of fig. 2.
Fig. 4 is a schematic view of the three-dimensional structure of the connection sleeve of the present invention.
Fig. 5 is a schematic structural diagram of the ceramic ferrule of the present invention.
Fig. 6 is a schematic sectional structure view of B-B of fig. 5.
Wherein: 1-dustproof cap, 2-ceramic contact pin, 2-1-plug base, 2-11-core hole, 2-grooved tailstock, 2-3-contact pin caudal handle, 2-31-fixing hole, 3-inner sleeve, 3-1-shoulder, 3-2-first lug, 3-front limiting hole, 3-4-rear mounting hole, 4-outer sleeve, 4-1-outer lug, 4-2-inner threaded hole, 5-spring, 6-connecting sleeve, 6-1-step hole, 6-2-front clamping groove, 6-3-limiting convex ring, 6-4-rear annular groove, 6-5-convex ring, 7-protective sleeve, 7-1-second lug, 8-optical cable, 8-1-single-core optical fiber.
Detailed Description
As shown in fig. 1, the optical fiber connector of the present invention includes an inner sleeve 3, a connecting sleeve 6, an outer sleeve 4, a ceramic pin 2 and a sheath tube 7.
As shown in figure 1, the inner sleeve 3 of the utility model comprises a front limiting hole 3-3 used for matching with the adapter during butt joint, a stop shoulder 3-1 used for limiting a groove tailstock 2-2 and a rear mounting hole 3-4 used for connecting with the connecting sleeve 6, and the inner sleeve 3 is limited with the adapter during butt joint and is fixed by clamping an outer lug 4-1 on the outer sleeve 4, so that the butt joint performance is prevented from being influenced by the displacement of the connector. As shown in figure 1, the dust cap 1 of the utility model is tightly sleeved on the ceramic contact pin 2 and extends into the inner sleeve 3, and is limited by the retaining shoulder 3-1, and the dust cap 1 protects the end surface of the ceramic contact pin 2 from being polluted by dust and water vapor in the air.
As shown in figures 1-4, the utility model discloses adapter sleeve 6 includes the first shaft section of being connected with endotheca 3 and the second shaft section of being connected with protecting pipe 7, the step hole 6-1 of first shaft section front side link up with the through-hole of second shaft section, first shaft section joint is in the back mounting hole 3-4 of endotheca 3, second shaft section joint is in protecting pipe 7's preceding mounting hole, make adapter sleeve 6 be connected with endotheca 3 and sheath respectively, it is fixed with ceramic contact pin 2 to provide certain pressure for spring 5, guarantee that spring 5 is in the stress state always.
As shown in figures 1-4, the connecting sleeve 6 of the present invention comprises a limit protruding ring 6-3 for axially limiting an inner sleeve 3 and a protecting sleeve 7, one side of the limit protruding ring 6-3 is connected with the protecting sleeve 7 to axially limit the protecting sleeve 7, while the other side of the limit protruding ring 6-3 axially limits the inner sleeve 3, the limit protruding ring 6-3 divides the connecting sleeve 6 into a first shaft section and a second shaft section, the first shaft section is provided with a front slot 6-2, the second shaft section is provided with a rear annular slot 6-4, a first bump 3-2 extending in a rear mounting hole 3-4 of the inner sleeve 3 is clamped in the front slot 6-2, the front slot 6-2 and the first bump 3-2 are symmetrically arranged, a second bump 7-1 in front of the front mounting hole of the protecting sleeve 7 is clamped in the rear annular slot 6-4, the inner sleeve 3 and the protecting sleeve 7 are both connected on the connecting sleeve 6. As shown in the figures 1-4, the connecting sleeve 6 of the present invention has a plurality of protruding rings 6-5 at the rear of the rear ring groove 6-4, a knurl is provided on the surface of each protruding ring 6-5, the diameter of the protruding ring 6-5 is smaller than the diameter of the rear ring groove 6-4, and the front mounting hole of the protecting sleeve 7 is closely connected with the protruding ring 6-5, so as to increase the friction between the protecting sleeve 7 and the inner sleeve 3, and the protecting sleeve 7 is not easy to fall off after being assembled.
See fig. 1, 5, 6, the utility model discloses ceramic contact pin 2 includes plug base 2-1 fixed to single core fiber 8-1 of optical cable 8 and contact pin caudal peduncle 2-3 to aramid fiber of optical cable and crust, trough of belt tailstock 2-2 is located plug base 2-1's rear portion, and ceramic contact pin 2 sets up between endotheca 3 and adapter sleeve 6, spring 5 one end of suit on contact pin caudal peduncle 2-3 pushes up on trough of belt tailstock 2-2, the other end pushes up on the loop platform of the step hole 6-1 of adapter sleeve 6, be in the stress state with spring 5 always, thereby exert certain power for ceramic contact pin 2, guarantee that the connector can be more abundant contact between two contact pins when the butt joint, thereby guarantee that optical property is stable. The utility model discloses optic fibre core is fixed in core hole 2-11 of plug base 2-1, have the fixed orifices 2-31 that is greater than core hole 2-11 in contact pin caudal peduncle 2-3, the aramid fiber of peeling off optical cable 8 and optical cable crust pass through the epoxy glue to be fixed in fixed orifices 2-31, during the equipment, can directly penetrate ceramic contact pin 2's contact pin caudal peduncle 2-3 in with opening the aramid fiber and the optical cable crust of peeling off, and utilize 353ND epoxy glue to fix it, can guarantee tensile strength, and optical cable 8 wears out adapter sleeve 6 and restrictive sleeve 7. As shown in figure 1, the plug base 2-1 of the ceramic contact pin 2 of the utility model is arranged in the inner sleeve 3, the contact pin tail handle 2-3 of the ceramic contact pin 2 passes through the step hole 6-1 of the connecting sleeve 6, and the gap between the small hole of the step hole 6-1 and the contact pin tail handle 2-3 is 0.1 +/-0.05 mm, thereby reducing the gap between the ceramic contact pin 2 and the connecting sleeve 6 and reducing the radial displacement phenomenon of the ceramic contact pin 2.
As shown in figure 1, the outer sleeve 4 of the utility model comprises an outer lug 4-1 which is connected with the adapter in a clamping way during butt joint and an inner threaded hole 4-2 which is connected with the protecting sleeve 7, the outer sleeve 4 is sleeved on the inner sleeve 3 and is screwed on the protecting sleeve 7, the outer sleeve 4 is connected with the protecting sleeve 7, the optical cable 8 at the tail part is protected, and the optical cable 8 is prevented from breaking due to bending. See fig. 1, the utility model discloses the preceding terminal surface parallel and level of preceding terminal surface of overcoat 4 and endotheca 3, or the preceding terminal surface of overcoat 4 surpasss the preceding terminal surface of endotheca 3, and the rear end face of overcoat 4 surpasss the rear end face of adapter sleeve 6, and it is fixed to carry out the joint through overcoat 4 when docking with the adapter, is convenient for extract simultaneously, prevents that the connector from taking place the displacement, influences the butt joint performance.
Claims (6)
1. The utility model provides an optical fiber connector of crimping structure exempts from which characterized in that: comprises an inner sleeve (3), a connecting sleeve (6), an outer sleeve (4), a ceramic contact pin (2) and a protective sleeve (7);
the inner sleeve (3) comprises a front limiting hole (3-3) used for being matched with the adapter in butt joint, a retaining shoulder (3-1) used for limiting the groove tailstock (2-2) and a rear mounting hole (3-4) used for being connected with the connecting sleeve (6);
the connecting sleeve (6) comprises a first shaft section connected with the inner sleeve (3) and a second shaft section connected with the protective sleeve (7), a step hole (6-1) in the front side of the first shaft section is communicated with a through hole of the second shaft section, the first shaft section is clamped in a rear mounting hole (3-4) of the inner sleeve (3), and the second shaft section is clamped in a front mounting hole of the protective sleeve (7);
the ceramic contact pin (2) comprises a plug base (2-1) for fixing single-core optical fibers of the optical cable and a contact pin tail handle (2-3) for fixing aramid fibers and outer skins of the optical cable, a groove tail base (2-2) is positioned at the rear part of the plug base (2-1), the ceramic contact pin (2) is arranged between an inner sleeve (3) and a connecting sleeve (6), one end of a spring (5) sleeved on the contact pin tail handle (2-3) is propped against the groove tail base (2-2) of the ceramic contact pin (2), the other end of the spring is propped against a ring platform of a step hole (6-1) of the connecting sleeve (6), the single-core optical fibers are fixed in a core hole of the plug base (2-1), a fixing hole (2-31) larger than the core hole (2-21) is formed in the contact pin tail handle (2-3), the aramid fibers and the outer skins of the optical cable are fixed in the fixing hole (2-31) through, the optical cable penetrates out of the connecting sleeve (6) and the protecting sleeve (7);
the outer sleeve (4) comprises an outer convex block (4-1) which is connected with the adapter in a clamping mode during butt joint and an inner threaded hole (4-2) connected with the protective sleeve (7), and the outer sleeve (4) is sleeved on the inner sleeve (3) and is screwed on the protective sleeve (7).
2. The optical fiber connector of claim 1, wherein: the connecting sleeve (6) comprises a limiting convex ring (6-3) used for axially limiting the inner sleeve (3) and the protective sleeve (7), the limiting convex ring (6-3) divides the connecting sleeve (6) into a first shaft section and a second shaft section, a front clamping groove (6-2) is arranged on the first shaft section, a rear annular groove (6-4) is arranged on the second shaft section, a first lug (3-2) extending in a rear mounting hole (3-4) of the inner sleeve (3) is clamped in the front clamping groove (6-2), and a second lug (7-1) at the front part of the mounting hole of the protective sleeve (7) is clamped in the rear annular groove (6-4).
3. The optical fiber connector of claim 2, wherein: the connecting sleeve (6) is provided with a plurality of convex rings (6-5) at intervals at the rear part of the rear ring groove (6-4), the surface of each convex ring (6-5) is provided with a knurl, and the front mounting hole of the protective sleeve (7) is tightly connected with the convex rings (6-5).
4. The optical fiber connector of claim 1, wherein: the front end face of the outer sleeve (4) is flush with the front end face of the inner sleeve (3), or the front end face of the outer sleeve (4) exceeds the front end face of the inner sleeve (3), and the rear end face of the outer sleeve (4) exceeds the rear end face of the connecting sleeve (6).
5. The optical fiber connector of claim 1, wherein: the plug base (2-1) of the ceramic contact pin (2) is arranged in the inner sleeve (3), the contact pin tail handle (2-3) of the ceramic contact pin (2) penetrates through the stepped hole (6-1) of the connecting sleeve (6), and the gap between the small hole of the stepped hole (6-1) and the contact pin tail handle (2-3) is 0.1 +/-0.05 mm.
6. The optical fiber connector of claim 1, wherein: the dustproof cap (1) is tightly sleeved on the ceramic contact pin (2), extends into the inner sleeve (3) and is limited by the retaining shoulder (3-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871870.3U CN212460114U (en) | 2020-08-31 | 2020-08-31 | Optical fiber movable connector free of compression structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021871870.3U CN212460114U (en) | 2020-08-31 | 2020-08-31 | Optical fiber movable connector free of compression structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212460114U true CN212460114U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021871870.3U Active CN212460114U (en) | 2020-08-31 | 2020-08-31 | Optical fiber movable connector free of compression structure |
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|---|---|
| CN (1) | CN212460114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113114364A (en) * | 2021-04-09 | 2021-07-13 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
-
2020
- 2020-08-31 CN CN202021871870.3U patent/CN212460114U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113114364A (en) * | 2021-04-09 | 2021-07-13 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
| CN113114364B (en) * | 2021-04-09 | 2022-02-15 | 深圳市爱得乐电子有限公司 | High-speed transmission integrated coupling structure photoelectric receiving system |
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