CN212872982U - Neutral single-mode beam-expanding optical fiber connector - Google Patents
Neutral single-mode beam-expanding optical fiber connector Download PDFInfo
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- CN212872982U CN212872982U CN202021775697.7U CN202021775697U CN212872982U CN 212872982 U CN212872982 U CN 212872982U CN 202021775697 U CN202021775697 U CN 202021775697U CN 212872982 U CN212872982 U CN 212872982U
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Abstract
The utility model discloses a neutral single-mode beam-expanding optical fiber connector, which comprises a socket, a square disc shell and a socket inner shell; the plug comprises an outer shell and a plug inner shell; the front end of the socket inner shell is in threaded connection with a first mounting plate assembly, a first arc groove is formed in the periphery of the first mounting plate assembly, a first key position clamped with the first arc groove is formed in the inner wall of the square disc shell, a first nut is sleeved at the tail of the socket inner shell, and the front end face of the first nut is in contact with the tail end face of the square disc shell; the same threaded connection of shell body front end has second mounting panel subassembly in the plug, and second mounting panel subassembly periphery is equipped with the second arc groove, and the shell body inner wall is equipped with the second key position with second arc groove block, and shell body afterbody cover is equipped with the second nut in the plug, terminal surface and shell body afterbody end face contact before the second nut. The utility model discloses sensitivity to the dust is lower. Meanwhile, the problem that the optical performance is influenced because the end face of the optical fiber is exposed outside and damaged can be effectively avoided.
Description
Technical Field
The utility model relates to an optical fiber electric connector technical field, concretely relates to neutral single mode expands optical fiber connector that restraints.
Background
The light transmission type of the optical fiber connector can be divided into two types: the physical contact type and the non-physical contact type (beam expanding type), the physical contact type is the main connection mode at present, signal transmission is realized by the tight butt joint of the end faces of the optical fibers, the cost is lower compared with the physical contact type connector of the beam expanding type optical fiber connector, but the physical contact type optical fiber connector has problems in the aspects of site cleanability, dust sensitivity and the like. If dust particles exist on the end face of the optical fiber, the dust particles can interrupt optical signals and even damage the end face of the optical fiber, and finally the optical fiber connector cannot work normally. Since the optical fiber of the physical contact type connector is in contact with the end face of the optical fiber, when the connector is vibrated, the end face of the optical fiber is damaged due to continuous friction of the end face of the optical fiber, and the insertion loss of the connector is increased, so that the connector cannot be applied to the field with frequent vibration. The connector is repeatedly butted for too many times, the end face of the optical fiber is damaged, the loss of the connector is increased until signal transmission cannot be realized, and the mechanical service life of the physical contact type optical fiber connector is short.
Disclosure of Invention
In order to solve the problem, the utility model provides an improve fiber connector's antipollution ability and mechanical life's neutral single mode beam expanding fiber connector.
In order to achieve the above object, the utility model adopts the following technical scheme: it comprises a socket and a plug; the socket comprises a square disc shell and a socket inner shell, wherein the square disc shell is provided with a tubular first hole cavity, the corresponding socket inner shell is of a tubular structure, and the socket inner shell is inserted from the front end of the square disc shell; the tail part of the inner shell of the socket is sleeved with a first nut, and the front end surface of the first nut is contacted with the tail end surface of the square disc shell;
the front end of the socket inner shell is connected with a first mounting plate component through threads, and the first mounting plate component is of a tubular structure and is also arranged in the first hole cavity; the diameter of the front end face of the first mounting plate assembly is larger than that of the rear end face of the first mounting plate assembly, a first arc groove is formed on the periphery of the first mounting plate assembly, and a first key position clamped with the first arc groove is correspondingly arranged in the first hole cavity;
the plug comprises an outer shell and a plug inner shell, wherein a tubular second hole cavity is formed in the outer shell, the corresponding plug inner shell is of a tubular structure, and the plug inner shell is inserted from the front end of the outer shell; a second nut is sleeved at the tail of the inner shell of the plug, and the front end face of the second nut is contacted with the tail end face of the outer shell; the front end of the plug inner shell is connected with a second mounting plate component through threads, the second mounting plate component is of a tubular structure and is also arranged in a second hole cavity, the diameter of the end face of the front portion of the second mounting plate component is larger than that of the end face of the rear portion of the second mounting plate component, a second arc groove is formed in the periphery of the second mounting plate component, and a second key position clamped with the second arc groove is correspondingly arranged in the second hole cavity.
A first tail plug is sleeved at the tail end of the inner shell of the socket, and a first tail screw cap is arranged on the periphery of the first tail plug; a second tail plug is sleeved at the tail end of the plug inner shell, and a second tail screw cap is arranged on the periphery of the first tail plug.
The first mounting plate assembly comprises a first front mounting plate, a first rear mounting plate and a first collimator; the first front mounting plate and the first rear mounting plate are fixedly connected, a first guide pin hole and a second guide pin hole are coaxially arranged on the first front mounting plate and the first rear mounting plate, the first guide pin hole and the second guide pin hole are symmetrically arranged by taking an axis as a center, and a guide pin is arranged in the first guide pin hole or the second guide pin hole in an interference manner; a first collimator is arranged at the tail end of the first rear mounting plate, and an optical fiber is embedded in the first collimator;
the second mounting plate assembly comprises a second front mounting plate, a second rear mounting plate and a second collimator; the second front mounting plate and the second rear mounting plate are fixedly connected, a third guide pin hole and a fourth guide pin hole are coaxially arranged on the second front mounting plate and the second rear mounting plate, the third guide pin hole and the fourth guide pin hole are symmetrically arranged by taking the shaft as the center, and a guide pin is arranged in the third guide pin hole or the fourth guide pin hole in an interference manner; and a second collimator is arranged at the tail end of the second rear mounting plate, and an optical fiber is embedded in the second collimator.
The first guide pin hole and the third guide pin hole coaxially correspond to each other, and the second guide pin hole and the fourth guide pin hole coaxially correspond to each other. Guide pins are respectively inserted into the first guide pin hole and the fourth guide pin hole, or guide pins are respectively inserted into the second guide pin hole and the third guide pin hole.
A first gasket and a first spring are sequentially arranged in a cavity formed by the square disc shell and the socket inner shell, and the first gasket and the first spring are sleeved on the socket inner shell; a second gasket and a second spring are arranged in a cavity formed by the outer shell and the inner shell of the plug at one time, and the second gasket and the second spring are sleeved on the inner shell of the plug.
And the first rear mounting plate and the second rear mounting plate are respectively provided with at least 1 collimator.
Use the utility model discloses a beneficial effect is: the utility model discloses a sensitivity to the dust is lower. Meanwhile, the problem that the optical performance is influenced because the end face of the optical fiber is exposed outside and damaged can be effectively avoided. And the connector adopts a neutral buckle structure to facilitate butt joint, and can be applied to remote optical signal transmission work in the environments of fields, exploration and the like.
Drawings
Fig. 1 is a schematic diagram of a socket structure.
Fig. 2 is a schematic structural diagram of a first mounting plate assembly.
Fig. 3 is a schematic diagram of a plug structure.
Fig. 4 is a schematic structural view of a second mounting plate assembly.
The reference numerals include:
1 is a square plate shell, and 1-1 is a first key position;
2 is a socket inner shell;
3 is a first mounting plate assembly, 3-1 is a first arc groove, 3-2 is a first guide pin hole, 3-3 is a first collimator, 3-4 is a first rear mounting plate, 3-5 is a first front mounting plate, and 3-6 is a second guide pin hole;
4 is a first spring, 5 is a first washer, 6 is a first nut, 7 is a first tail plug, and 8 is a first tail nut;
11 is an outer shell;
12 is a plug inner shell;
13 is a second mounting plate assembly, 13-2 is a third guide pin hole, 13-3 is a second collimator, 13-4 is a second rear mounting plate, 13-5 is a second front mounting plate, and 13-6 is a fourth guide pin hole;
14 is a second spring, 15 is a second washer, 16 is a second nut, 17 is a second tail plug, and 18 is a second tail nut.
Detailed Description
In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.
As shown in fig. 1-4, the present invention discloses a neutral single-mode beam-expanding optical fiber connector with low sensitivity to dust, which comprises a socket and a plug; the socket comprises a square disc shell (1) and a socket inner shell (2), wherein the square disc shell (1) is provided with a tubular first hole cavity, the corresponding socket inner shell (2) is of a tubular structure, and the socket inner shell (2) is inserted from the front end of the square disc shell (1); a first nut (6) is sleeved at the tail part of the socket inner shell (2), and the front end face of the first nut (6) is contacted with the tail end face of the square disc shell (1); the front end of the socket inner shell (2) is connected with a first mounting plate component (3) through threads, the first mounting plate component (3) is of a tubular structure and is also arranged in the first hole cavity; the diameter of the front end face of the first mounting plate component (3) is larger than that of the rear end face, a first arc groove (3-1) is formed on the periphery of the first mounting plate component (3), and a first key position (1-1) clamped with the first arc groove (3-1) is correspondingly arranged in the first hole cavity; the plug comprises an outer shell (11) and a plug inner shell (12), a tubular second hole cavity is formed in the outer shell (11), the corresponding plug inner shell (12) is of a tubular structure, and the plug inner shell (12) is inserted from the front end of the outer shell (11); a second nut (16) is sleeved at the tail part of the plug inner shell (12), and the front end face of the second nut (16) is contacted with the tail end face of the outer shell (11); the front end of the plug inner shell (12) is connected with a second mounting plate component (13) through threads, the second mounting plate component (13) is of a tubular structure and is also arranged in a second hole cavity, the diameter of the front end face of the second mounting plate component (13) is larger than that of the rear end face, a second arc groove is formed in the periphery of the second mounting plate component (13), and a second key position clamped with the second arc groove is correspondingly arranged in the second hole cavity.
A first tail plug (7) is sleeved at the tail end of the socket inner shell (12), and a first tail screw cap (8) is arranged on the periphery of the first tail plug (7); the tail end of the plug inner shell (12) is sleeved with a second tail plug (17), and a second tail nut (18) is arranged on the periphery of the first tail plug (17).
The first mounting plate assembly (3) comprises a first front mounting plate (3-5), a first rear mounting plate (3-4) and a first collimator (3-3); the first front mounting plate (3-5) is fixedly connected with the first rear mounting plate (3-4), the first front mounting plate (3-5) and the first rear mounting plate (3-4) are coaxially provided with a first guide pin hole (3-2) and a second guide pin hole (3-6), the first guide pin hole (3-2) and the second guide pin hole (3-6) are symmetrically arranged by taking an axis as a center, and guide pins are arranged in the first guide pin hole (3-2) or the second guide pin hole (3-6) in an interference manner; a first collimator (3-3) is arranged at the tail end of the first rear mounting plate (3-4), and an optical fiber is embedded in the first collimator (3-3);
the second mounting plate assembly (13) comprises a second front mounting plate (13-5), a second rear mounting plate (13-4) and a second collimator (13-3); the second front mounting plate (13-5) is fixedly connected with the second rear mounting plate (13-4), the second front mounting plate (13-5) and the second rear mounting plate (13-4) are coaxially provided with a third guide pin hole (13-2) and a fourth guide pin hole (13-6), the third guide pin hole (13-2) and the fourth guide pin hole (13-6) are symmetrically arranged by taking an axis as a center, and guide pins are arranged in the third guide pin hole (13-2) or the fourth guide pin hole (13-6) in an interference manner; and a second collimator (13-3) is arranged at the tail end of the second rear mounting plate (13-4), and an optical fiber is embedded in the second collimator (13-3).
The first guide pin hole (3-2) and the third guide pin hole (13-2) are coaxially corresponding, and the second guide pin hole (3-6) and the fourth guide pin hole (13-6) are coaxially corresponding.
Guide pins are respectively inserted into the first guide pin hole (3-2) and the fourth guide pin hole (13-6), or guide pins are respectively inserted into the second guide pin hole (3-6) and the third guide pin hole (13-2).
A first gasket (5) and a first spring (4) are sequentially arranged in a cavity formed by the square disc shell (1) and the socket inner shell (2), and the first gasket (5) and the first spring (4) are sleeved on the socket inner shell (2); a second gasket (15) and a second spring (14) are arranged in a cavity formed by the outer shell (11) and the plug inner shell (12) at a time, and the plug inner shell (12) is sleeved with the second gasket (15) and the second spring (14).
And the first rear mounting plate (3-4) and the second rear mounting plate (13-4) are respectively provided with at least 1 collimator. The principle of the utility model is that: the plug and the socket are in butt joint and are positioned through the guide pins and the guide pin holes. The collimator is in small clearance fit with the rear mounting plate and is fixed by a small amount of epoxy glue. The optical fiber is embedded in the collimator, and the light beam is amplified and collimated through the front section lens of the collimator, so that the requirement on mechanical precision is reduced, and non-contact connection of signals is realized. Wherein, the back mounting plate is provided with two guide pin holes and at least one collimator hole. The guide pin is in interference fit with a guide pin hole on the mounting plate behind the contact pin, and the guide pin is ensured to be on the same guide pin hole during installation.
The advantage of this patent: the main advantage of the present connector is its low sensitivity to dust. Meanwhile, the problem that the optical performance is influenced because the end face of the optical fiber is exposed outside and damaged can be effectively avoided. And the connector adopts a neutral buckle structure to facilitate butt joint, and can be applied to remote optical signal transmission work in the environments of fields, exploration and the like.
The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.
Claims (6)
1. A neutral single-mode beam-expanding optical fiber connector comprises a socket, a first optical fiber and a second optical fiber, wherein the socket comprises a square disc shell and a socket inner shell; the plug comprises an outer shell and a plug inner shell; the method is characterized in that:
the front end of the socket inner shell is in threaded connection with a first mounting plate assembly, a first arc groove is formed in the periphery of the first mounting plate assembly, a first key position clamped with the first arc groove is formed in the inner wall of the square disc shell, a first nut is sleeved at the tail of the socket inner shell, and the front end face of the first nut is in contact with the tail end face of the square disc shell;
the same threaded connection of shell body front end has second mounting panel subassembly in the plug, and second mounting panel subassembly periphery is equipped with the second arc groove, and the shell body inner wall is equipped with the second key position with second arc groove block, and shell body afterbody cover is equipped with the second nut in the plug, terminal surface and shell body afterbody end face contact before the second nut.
2. The neutral, single mode, beam-expanding fiber optic connector of claim 1, wherein: a first tail plug is screwed at the tail end of the inner shell of the socket, and a first tail screw cap is arranged on the periphery of the first tail plug; and a second tail plug is screwed at the tail end of the inner shell of the plug, and a second tail screw cap is arranged on the periphery of the first tail plug.
3. The neutral, single mode, beam-expanding fiber optic connector of claim 1, wherein: the first mounting plate assembly comprises a first front mounting plate, a first rear mounting plate and a first collimator; the first front mounting plate and the first rear mounting plate are fixedly connected, a first guide pin hole and a second guide pin hole are coaxially arranged on the first front mounting plate and the first rear mounting plate, and the first guide pin hole and the second guide pin hole are symmetrically arranged by taking an axis as a center; a first collimator is arranged at the tail end of the first rear mounting plate, and an optical fiber is embedded in the first collimator;
the second mounting plate assembly comprises a second front mounting plate, a second rear mounting plate and a second collimator; wherein
The second front mounting plate is fixedly connected with the second rear mounting plate, the second front mounting plate and the second rear mounting plate are coaxially provided with a third guide pin hole and a fourth guide pin hole, and the third guide pin hole and the fourth guide pin hole are symmetrically arranged by taking the shaft as a center; and a second collimator is arranged at the tail end of the second rear mounting plate, and an optical fiber is embedded in the second collimator.
4. The neutral, single mode, beam-expanding fiber optic connector of claim 3, wherein: guide pins are respectively inserted into the first guide pin hole and the fourth guide pin hole, or guide pins are respectively inserted into the second guide pin hole and the third guide pin hole.
5. The neutral, single mode, beam-expanding fiber optic connector of claim 3, wherein: and the first rear mounting plate and the second rear mounting plate are respectively provided with at least 1 collimator.
6. The neutral, single mode, beam-expanding fiber optic connector of claim 1, wherein: a first gasket and a first spring are sequentially arranged in a cavity formed by the square disc shell and the socket inner shell, and the first gasket and the first spring are sleeved on the socket inner shell; a second gasket and a second spring are arranged in a cavity formed by the outer shell and the inner shell of the plug at one time, and the second gasket and the second spring are sleeved on the inner shell of the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775697.7U CN212872982U (en) | 2020-08-24 | 2020-08-24 | Neutral single-mode beam-expanding optical fiber connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775697.7U CN212872982U (en) | 2020-08-24 | 2020-08-24 | Neutral single-mode beam-expanding optical fiber connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212872982U true CN212872982U (en) | 2021-04-02 |
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ID=75189879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021775697.7U Active CN212872982U (en) | 2020-08-24 | 2020-08-24 | Neutral single-mode beam-expanding optical fiber connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212872982U (en) |
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2020
- 2020-08-24 CN CN202021775697.7U patent/CN212872982U/en active Active
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