CN209858786U - LC duplex connector - Google Patents
LC duplex connector Download PDFInfo
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- CN209858786U CN209858786U CN201920707934.7U CN201920707934U CN209858786U CN 209858786 U CN209858786 U CN 209858786U CN 201920707934 U CN201920707934 U CN 201920707934U CN 209858786 U CN209858786 U CN 209858786U
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- cover plate
- hollow
- duplex connector
- lower cover
- rear end
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Abstract
The utility model discloses a LC duplex connector, which comprises a front frame sleeve, a ferrule assembly, an upper cover plate and a lower cover plate, wherein the upper cover plate comprises a main body, a hollow tail part positioned at the rear end of the main body and two hollow plugs positioned at the front end of the main body, the two hollow plugs are respectively connected with the two front frame sleeves, and the ferrule assembly is arranged in the connected hollow plugs and the front frame sleeves; the rear end of the lower cover plate is provided with an elastic tail handle matched with the hollow tail part; the lower cover plate is connected with the upper cover plate through a buckle structure. The utility model discloses a LC duplex connector, it is few to have spare part, and easy operation is convenient, and upper and lower apron lid closes more reliable advantage.
Description
Technical Field
The utility model relates to an optical fiber communication technical field, concretely relates to LC duplex connector.
Background
The optical fiber connector is a device for connecting optical fibers, and precisely butt-joints two end faces of the optical fibers so as to ensure that the light energy output by the transmitting optical fiber can be coupled into the receiving optical fiber to the maximum extent and the light energy can intervene in an optical link so as to minimize the influence on a system.
An lc (lucent connector) duplex connector is an optical fiber connector developed for a tube of two-core optical fiber cable. For example, a patent with publication number "CN 106918869B" entitled "an LC duplex connector" discloses a duplex connector, which is mainly assembled by a front frame sleeve, a rear frame sleeve, an upper cover plate, a lower cover plate, a ferrule and other parts.
Practice shows that most of the existing LC duplex connectors on the market have the problems of excessive parts, inconvenient operation and unreliable upper and lower cover plate covers.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a simple structure, convenient operation, LC duplex connector that the reliability is high can make the inseparable lid of upper and lower apron close under the condition that does not influence the equipment, strengthens the reliability that the lid of upper and lower apron of LC duplex connector closed.
In order to solve the technical problems, the technical scheme is as follows:
an LC duplex connector comprises a front frame sleeve, a ferrule assembly, an upper cover plate and a lower cover plate, wherein the upper cover plate comprises a main body, a hollow tail part positioned at the rear end of the main body and two hollow plugs positioned at the front end of the main body, the two hollow plugs are respectively connected with the two front frame sleeves, and the ferrule assembly is arranged in the connected hollow plugs and the front frame sleeves; the rear end of the lower cover plate is provided with an elastic tail handle matched with the hollow tail part; the lower cover plate is connected with the upper cover plate through a buckle structure.
Optionally, the two sides of the main body are provided with clamping grooves, the two sides of the lower cover plate are provided with clamping strips, and the clamping strips and the clamping grooves are matched to form a first buckle structure.
Optionally, an elastic arm is arranged in the middle of the front end of the lower cover plate, and a barb is arranged at the top end of the elastic arm; a notch is formed in the middle of the front end of the main body, and a hook groove is formed in the inner wall of the notch; the elastic arm provided with the barb is matched with the notch provided with the hook groove to form a second buckle structure.
Optionally, the two sides of the rear end of the lower cover plate are respectively provided with an embedded block, the two sides of the rear end of the main body are respectively provided with an embedded groove, and the embedded blocks and the embedded grooves are matched to form a third buckle structure.
Optionally, the surface of the hollow plug is provided with a protrusion, the inner wall of the front frame sleeve is provided with a corresponding concave hole, the protrusion is matched with the concave hole, and the front frame sleeve is fixedly connected to the hollow plug.
Optionally, the hollow plug is provided with a first opening communicated with the inner cavity of the hollow plug, and the hollow tail is provided with a second opening communicated with the inner cavity of the hollow plug.
Optionally, the lower cover plate is provided with a convex rib extending to the elastic tail handle, the elastic tail handle is located at the second opening of the hollow tail, and the convex rib is clamped into the second opening.
Optionally, the method further includes: a spring and a small white tube; the small white tube is sleeved at the rear end of the ferrule assembly, the spring is sleeved at the rear end of the ferrule assembly and arranged outside the small white tube, and the small white tube is assembled and then is arranged in the front frame sleeve to penetrate into the inner cavity of the hollow plug.
Optionally, a retaining ring is arranged at the rear end of the inner cavity of the hollow plug, and the rear end of the spring abuts against the retaining ring.
Optionally, the dust-proof cover also comprises a compression joint ring, a tail sleeve and a dust-proof cap; the compression joint ring is sleeved on the elastic tail handle and the hollow tail part, and the tail sleeve is sleeved on the compression joint ring; the dustproof cap is arranged at the front end of the front frame sleeve.
According to the technical solution provided by the utility model, the embodiment of the utility model has the following advantage:
1. the operation is simple and convenient:
the upper cover plate is integrally provided with two hollow plugs which can be directly connected with the two front frame sleeves, so that the number of parts for forming the LC duplex connector is reduced compared with the prior art, and the assembly is simpler;
the upper cover plate and the lower cover plate are directly connected in a covering manner through the buckle structure, so that the operation is simple and convenient;
and 2, the upper cover plate and the lower cover plate of the LC duplex connector are connected through at least one clamping structure, so that the structure is stable, and the covering is more reliable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments and the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded view of an LC duplex connector in an embodiment of the invention;
fig. 2 is a perspective view of an LC duplex connector in an embodiment of the invention;
fig. 3 is a schematic structural view of an upper cover plate and a lower cover plate in an embodiment of the present invention;
fig. 4 is another schematic structural view of the upper and lower cover plates in an embodiment of the present invention;
fig. 5 is a perspective view of the upper and lower cover plates in an embodiment of the present invention;
fig. 6 is a cross-sectional view of the upper and lower cover plates in a closed position according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of an assembled LC duplex connector in an embodiment of the invention;
fig. 8 is another cross-sectional view of an assembled LC duplex connector in an embodiment of the invention;
fig. 9 is a partial enlarged view of an assembled LC duplex connector in an embodiment of the invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
The terms "first," "second," "third," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between different objects and not necessarily for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
The following are detailed descriptions of the respective embodiments.
Referring to fig. 1 and 2, an embodiment of the present invention provides an LC duplex connector, which includes a front frame 2, a ferrule assembly 3, an upper cover plate 7 and a lower cover plate 6.
The upper cover plate 7 comprises a main body 70, a hollow tail 71 and two hollow plugs 72, wherein the main body 70, the hollow tail 71 and the two hollow plugs 72 are integrally formed, the hollow tail 71 is positioned at the rear end of the main body 70, the two hollow plugs 72 are positioned at the front end of the main body 70, the two hollow plugs 72 are respectively connected with the two front frame sleeves 2, and the ferrule assembly 3 is installed in the connected hollow plugs 72 and the front frame sleeves 2; the rear end of the lower cover plate 6 is provided with an elastic tail handle 605 matched with the hollow tail part 71; the lower cover plate 6 and the upper cover plate 7 are connected through a buckle structure.
The buckling structure comprises a first buckling structure, a second buckling structure and/or a third buckling structure. Please refer to fig. 3 to fig. 6:
in some embodiments, the main body 70 is provided with two clamping grooves 702 on two sides thereof, the lower cover plate 6 is provided with two clamping strips 601 on two sides thereof, and the clamping strips 601 and the clamping grooves 702 cooperate to form a first fastening structure.
In some embodiments, the middle of the front end of the lower cover plate 6 is provided with an elastic arm 603, and the top end of the elastic arm 603 is provided with a barb; a notch 705 is formed in the middle of the front end of the main body 70, and a hook groove is formed in the inner wall of the notch 705; the barbed resilient arms 603 cooperate with the hook-grooved recesses 705 to form a second snap feature.
In some embodiments, two sides of the rear end of the lower cover plate 6 are respectively provided with an insert 604, two sides of the rear end of the main body 70 are respectively provided with an insert 704, and the insert 604 and the insert 704 cooperate to form a third snap structure.
The lower cover plate 6 and the upper cover plate 7 can be connected in a covering mode through one or more buckling structures, and the upper cover plate 7 and the lower cover plate 6 are tightly fixed.
In some embodiments, the LC duplex connector further comprises a spring 4 and a small white tube 5; the small white tube 5 is sleeved on the rear end of the ferrule assembly 3, the spring 4 is sleeved on the rear end of the ferrule assembly 3 and arranged outside the small white tube 5, and the small white tube is assembled and then is arranged in the front frame sleeve 3 to penetrate into the inner cavity of the hollow plug 72.
In some embodiments, the LC duplex connector further comprises a crimp ring 8 and a tail sleeve 9, the crimp ring 8 fitting over the resilient tail shank 605 and the hollow tail 71, the tail sleeve 9 fitting over the crimp ring 8.
In some embodiments, the LC duplex connector further includes a dust cap 1, and the dust cap 1 is disposed at the front end of the front bezel 2 to prevent dust and the like from contaminating the ferrule end face.
In some embodiments, the hollow plug 72 includes a connector 721 connected to the front end of the main body 70 and a connector 722 connected to the front end of the connector 721; the connector 722 is inserted into the front frame sleeve 2. Alternatively, the coupling head 721 has a size corresponding to that of the front frame casing 2, and the coupling rear surface is flush.
In some embodiments, the surface of the hollow plug 72 is provided with a protrusion 706, the inner wall of the front bezel 2 is provided with a corresponding concave hole 201, and the protrusion 706 is matched with the concave hole 201 to fixedly connect the front bezel 2 to the hollow plug 72.
Optionally, the protrusion 706 is disposed on the surface of the connection head 722.
In some embodiments, the hollow plug 72 has a first opening 701 communicating with the inner cavity thereof, and the hollow tail 71 has a second opening 703 communicating with the inner cavity thereof. The first and second openings 701 and 703 are used to facilitate cable entry during assembly. The second opening 703 is also used for the insertion of the resilient tail handle 605. A two-core fiber optic cable can be fed into the hollow tail 71 through the second opening 703. a two-core fiber optic cable can be split into two single-core cables in the body 70 that are fed into the hollow plugs 72 through the first openings 701, respectively, and the single-core cables are threaded into the ferrule assembly 3.
In some embodiments, the lower cover plate 6 is provided with a rib 602 extending to an elastic tail handle 605, the elastic tail handle 605 is located at the second opening 703 of the hollow tail portion 71, and the rib 602 is snapped into the second opening 703. The ribs 602 reinforce the resilient tail 605 at the end of the lower cover plate 6.
Referring to fig. 7, in some embodiments, the rear end of the inner cavity of the hollow plug 72 has a stop ring 707, the rear end of the spring 4 abuts against the stop ring 707, and the front end of the spring 4 abuts against a position of a convex ring in the middle of the ferrule assembly 3, so as to push the ferrule assembly 3 toward the front frame 2. Optionally, the inner cavity of the hollow plug 72 includes a rear cavity located in the connecting head 721 and a front cavity located in the connecting head 722, the inner diameter of the rear cavity is smaller than that of the front cavity, and the stop ring 707 is formed at the joint of the rear cavity and the front cavity.
In some embodiments, the upper cover plate 7 is provided with a pressing handle 73, the front frame casing 2 is provided with a resilient arm 21, the resilient arm 21 and the pressing handle 73 are matched, and when the upper cover plate 7 and the front frame casing 2 are assembled together, the top end of the resilient arm 21 is located at the lower part of the pressing handle 73.
Referring to fig. 1 to 9, the connection relationship and assembly manner of the components of the LC duplex connector includes:
a small white tube 5 is inserted into the rear end of the ferrule assembly 3, and a spring 4 is sleeved outside the small white tube 5. The ferrule assembly 3, the small white tube 5 and the spring 4 are arranged in a first cavity 11 formed by the front frame sleeve 2 and the upper cover plate 7, and the rear end of the spring 4 is propped against the retaining ring 707. The lower cover plate 6 is buckled on the upper cover plate 7 to form a second cavity 12.
The lower cover plate 6 is buckled on the upper cover plate 7, wherein the clamping strips 601 at two sides of the lower cover plate 6 are buckled in the clamping grooves 702 of the upper cover plate 7, so that the upper cover plate 7 and the left and right ends of the lower cover plate 6 are fixed; the elastic arm 603 arranged at the front end of the lower cover plate 6 is inserted into the corresponding notch 705 on the upper cover plate 7 and buckled, and the lower cover plate 6 and the upper cover plate 7 are further fixed; the rib 602 arranged in the middle of the lower cover plate 6 has a reinforcing effect on the elastic tail handle 605, the rib 602 is clamped in the second opening 703 on the hollow tail part 71 of the upper cover plate 7, and the guiding and limiting effects are realized when the elastic tail handle 605 is combined into the second opening 703.
After the lower cover plate 6 and the upper cover plate 7 are closed, the crimping ring 8 is crimped at the hollow tail part of the upper cover plate 7, the front end of the crimping ring 8 crimps the Kevlar wire inside the optical cable 10 at the hollow tail part 703 at the rear end of the upper cover plate 7 to form a main tensile structure or a tensile part, meanwhile, the front end of the crimping ring 8 crimps the elastic tail handle 605 of the lower cover plate 6 at the hollow tail part 703 at the rear end of the upper cover plate 7, and further fixes the connecting structure of the lower cover plate 6 and the upper cover plate 7, so that the closing of the upper cover plate 7 and the lower cover plate 6 is stable and reliable. The outer skin of the optical cable 10 is pressed at the rear end of the pressing ring 8 to form a secondary tensile structure, and the tail sleeve 9 is sleeved on the pressing ring 8.
As described above, the utility model discloses LC duplex connector designs corresponding draw-in groove and card strip respectively about upper and lower apron, constitutes first buckle structure. The front ends of the upper cover plate and the lower cover plate are respectively provided with a corresponding notch and an elastic arm to form a second buckle structure. The rear ends of the upper cover plate and the lower cover plate are respectively provided with a corresponding caulking groove and a corresponding caulking block. Forming a third snap structure. Through three groups of buckle structures, the upper cover plate and the lower cover plate can be covered together and firmly fixed.
In addition, a first opening and a second opening which are convenient for installation of the optical cable are formed in the upper cover plate, so that the assembly is simpler and more convenient.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; those of ordinary skill in the art will understand that: the technical solutions described in the above embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. An LC duplex connector comprises a front frame sleeve, a ferrule assembly, an upper cover plate and a lower cover plate, and is characterized in that,
the upper cover plate comprises a main body, a hollow tail part positioned at the rear end of the main body and two hollow plugs positioned at the front end of the main body, the two hollow plugs are respectively connected with the two front frame sleeves, and the ferrule assembly is arranged in the connected hollow plugs and the front frame sleeves; the rear end of the lower cover plate is provided with an elastic tail handle matched with the hollow tail part; the lower cover plate is connected with the upper cover plate through a buckle structure.
2. The LC duplex connector of claim 1,
the both sides of main part are equipped with the draw-in groove, the both sides of apron are equipped with the card strip down, card strip and draw-in groove cooperation constitute first buckle structure.
3. The LC duplex connector of claim 1,
the middle part of the front end of the lower cover plate is provided with an elastic arm, and the top end of the elastic arm is provided with a barb; a notch is formed in the middle of the front end of the main body, and a hook groove is formed in the inner wall of the notch; the elastic arm provided with the barb is matched with the notch provided with the hook groove to form a second buckle structure.
4. The LC duplex connector of claim 1,
the two sides of the rear end of the lower cover plate are respectively provided with an embedded block, the two sides of the rear end of the main body are respectively provided with an embedded groove, and the embedded blocks and the embedded grooves are matched to form a third buckling structure.
5. The LC duplex connector of claim 1,
the surface of the hollow plug is provided with a protrusion, the inner wall of the front frame sleeve is provided with a corresponding concave hole, the protrusion is matched with the concave hole, and the front frame sleeve is fixedly connected to the hollow plug.
6. The LC duplex connector of claim 1,
the hollow plug is provided with a first opening communicated with the inner cavity of the hollow plug, and the hollow tail is provided with a second opening communicated with the inner cavity of the hollow plug.
7. The LC duplex connector of claim 6,
the lower cover plate is provided with a convex edge extending to the elastic tail handle, the elastic tail handle is positioned at the second opening of the hollow tail part, and the convex edge is clamped into the second opening.
8. The LC duplex connector of any one of claims 1 to 7,
further comprising: a spring and a small white tube;
the small white tube is sleeved at the rear end of the ferrule assembly, the spring is sleeved at the rear end of the ferrule assembly and arranged outside the small white tube, and the small white tube is assembled and then is arranged in the front frame sleeve to penetrate into the inner cavity of the hollow plug.
9. The LC duplex connector of claim 8,
the rear end of the inner cavity of the hollow plug is provided with a baffle ring, and the rear end of the spring abuts against the baffle ring.
10. The LC duplex connector of any one of claims 1 to 7,
the dust-proof cover also comprises a compression joint ring, a tail sleeve and a dust-proof cap;
the compression joint ring is sleeved on the elastic tail handle and the hollow tail part, and the tail sleeve is sleeved on the compression joint ring;
the dustproof cap is arranged at the front end of the front frame sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707934.7U CN209858786U (en) | 2019-05-16 | 2019-05-16 | LC duplex connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920707934.7U CN209858786U (en) | 2019-05-16 | 2019-05-16 | LC duplex connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209858786U true CN209858786U (en) | 2019-12-27 |
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ID=68941193
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920707934.7U Active CN209858786U (en) | 2019-05-16 | 2019-05-16 | LC duplex connector |
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| CN (1) | CN209858786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187445A (en) * | 2019-05-16 | 2019-08-30 | 深圳市飞博康光通讯技术有限公司 | A kind of LC duplex connector |
| US11934017B2 (en) | 2021-03-02 | 2024-03-19 | Corning Research & Development Corporation | Polarity changeable optical connector |
-
2019
- 2019-05-16 CN CN201920707934.7U patent/CN209858786U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187445A (en) * | 2019-05-16 | 2019-08-30 | 深圳市飞博康光通讯技术有限公司 | A kind of LC duplex connector |
| CN110187445B (en) * | 2019-05-16 | 2024-07-23 | 惠州市飞博康实业有限公司 | LC duplex connector |
| US11934017B2 (en) | 2021-03-02 | 2024-03-19 | Corning Research & Development Corporation | Polarity changeable optical connector |
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Effective date of registration: 20211018 Address after: 516100 No.1 Industrial Avenue, Longhua Town, BOLUO County, Huizhou City, Guangdong Province Patentee after: Huizhou Feibokang Industrial Co.,Ltd. Address before: 518000 No. 10-5, Minsheng 1st Road, liaokeng, Baoyuan community, Shiyan street, Bao'an District, Shenzhen, Guangdong (No. 1, 3rd floor and No. 6, 7th floor) Patentee before: SHENZHEN FIBERCAN OPTICAL Co.,Ltd. |