Optical fiber coupler capable of being accurately positioned and installed

Abstract

The utility model relates to the technical field of optical passive elements, and discloses an optical fiber coupler capable of being accurately positioned and installed, which comprises two optical fiber coupling connectors, the two optical fiber coupling connectors are arranged in a front-back combined manner, each optical fiber coupling connector comprises a connector main body, and the two connector main bodies are arranged in a front-back symmetrical manner. A connecting joint is arranged in the center of the rear end of the front-side connector body, a connecting interface is arranged in the center of the front end of the rear-side connector body, and the connecting joint is slidably installed in the connecting interface in an embedded mode. According to the utility model, the opposite ends of the two optical fiber coupling connectors are respectively provided with one matching installation structure, each matching installation structure comprises four positioning installation holes, the two positioning installation holes at the same end can be internally provided with the same installation bolt, and single-layer positioning structures are adopted for positioning installation separately. After the whole optical fiber coupler is accurately positioned and installed, the installation firmness is good.

Description

Technical Field

[0001] The utility model relates to the technical field of optical passive components, in particular to an optical fiber coupler which can be accurately positioned and installed. Background Art

[0002] Fiber optic couplers, also known as splitters, connectors, adapters, and fiber optic flanges, are components used to realize optical signal splitting / combining, or to extend optical fiber links. They are used in telecommunication networks, cable TV networks, user loop systems, and local area networks. Fiber optic couplers are optical devices that realize the distribution or combination of optical signal power between different optical fibers. They are formed by the mutual exchange of waveguide energy in the optical fiber core area adjacent to different optical fiber surfaces. According to the type of optical fiber used, they can be divided into multimode optical fiber, single-mode optical fiber, and polarization-maintaining optical fiber couplers.

[0003] The existing optical fiber couplers still have the following problems when in use: they usually adopt an integrated structural design, and a matching seat is provided in the middle thereof, and positioning installation holes are provided at the four corners of the matching seat. Since they adopt a single-layer positioning structure for positioning installation, the installation firmness after precise positioning installation is general. At the same time, since the overall optical fiber coupler adopts an integrated structural design, after the single-sided optical fiber coupler interface is damaged, the overall optical fiber coupler is discarded, resulting in a large waste of materials. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an optical fiber coupler that can be accurately positioned and installed, solving the problems raised by the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an optical fiber coupler that can be accurately positioned and installed, comprising two optical fiber coupling connectors, the two optical fiber coupling connectors are arranged in a front-to-back combination, the optical fiber coupling connector comprises a connector body, the two connector bodies are arranged in a front-to-back symmetrical shape, a connecting joint is arranged at the rear end center position of the front connector body, and a connecting interface is arranged at the front end center position of the rear connector body, and the connecting joint is slidably installed in the connecting interface.

[0008] As a further solution of the utility model: a group of optical fiber interfaces are respectively provided at one end of the two connector bodies, and a group of optical fiber interfaces consists of three optical fiber interfaces which are arranged horizontally and equidistantly. A matching card slot is provided in the middle of the bottom wall of the optical fiber interface, and interface contacts are provided inside the two groups of optical fiber interfaces facing each other.

[0009] As a further solution of the utility model: a mating seat is provided at each end of the two connector bodies facing each other, and positioning mounting holes are opened between the front and rear side walls at the four corners of the mating seat, and the four front positioning mounting holes and the four rear positioning mounting holes are arranged symmetrically front and back.

[0010] As a further solution of the utility model: a mating card sleeve mechanism is arranged on the outside of the optical fiber coupling connector, and an interlocking groove is opened on the outer wall in the middle of the connector body. The mating card sleeve mechanism includes a fixed sleeve fixedly sleeved on the outer side of the interlocking groove, and a first elastic card is fixedly connected to the middle of the upper and lower outer walls of the two fixed sleeves at one end away from each other, and a second elastic card is fixedly connected to the middle of the outer walls of the two fixed sleeves at one end away from each other.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, the integral optical fiber coupler adopts a two-piece combined structure design, and a connecting joint is provided at the rear end of the front optical fiber coupling connector, and the connecting joint is slidably fitted in the connecting interface provided at the front end of the rear optical fiber coupling connector. The two optical fiber coupling connectors can be disassembled. When the interface of the optical fiber coupling connector on one side is damaged, only the optical fiber coupling connector needs to be replaced without being discarded as a whole.

[0013] 2. In the utility model, a matching installation structure is provided at each of the two facing ends of the two optical fiber coupling connectors, and the matching installation structure includes four positioning installation holes, and the same installation bolt can be arranged in the two positioning installation holes at the same end, which is different from the single-layer positioning structure used for positioning installation. The overall optical fiber coupler has good installation firmness after precise positioning and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall stereogram of the utility model;

[0015] Figure 2 The utility model is a two-piece optical fiber coupling connector split into three dimensions Figure 1 ;

[0016] Figure 3 The utility model is a two-piece optical fiber coupling connector split into three dimensions Figure 2 ;

[0017] Figure 4 It is a three-dimensional diagram of the matching sleeve mechanism of the utility model.

[0018] In the figure: 1. Fiber optic coupling connector; 2. Mating card sleeve mechanism; 11. Connector body; 12. Connecting joint; 13. Connecting interface; 14. Positioning and mounting hole; 15. Fitting groove; 16. Fiber optic interface; 17. Mating card slot; 18. Interface contact; 21. Fixing sleeve; 22. First elastic card; 23. Second elastic card. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that the optical fiber coupling connector 1 is a prior art, and is a component used to realize optical signal splitting / combining, or to extend an optical fiber link. It is common knowledge to those skilled in the art and will not be described in detail here.

[0021] See also Figures 1 to 4 In an embodiment of the utility model, a fiber optic coupler that can be accurately positioned and installed includes two fiber optic coupling connectors 1, which are arranged in a front-to-back combination. The fiber optic coupling connector 1 includes a connector body 11, and the two connector bodies 11 are arranged in a front-to-back symmetrical shape. A connection joint 12 is arranged at the center position of the rear end of the front connector body 11, and a connection interface 13 is arranged at the center position of the front end of the rear connector body 11. The connection joint 12 is slidably installed in the connection interface 13. The overall fiber optic coupler adopts a two-piece combined structure design. The rear end of the front fiber optic coupling connector 1 is provided with a connection joint 12, and the connection joint 12 is slidably installed in the connection interface 13 provided at the front end of the rear fiber optic coupling connector 1. The two fiber optic coupling connectors 1 can be disassembled. After the interface of the single-side fiber optic coupling connector 1 is damaged, only the fiber optic coupling connector 1 needs to be replaced without being discarded as a whole.

[0022] A group of optical fiber interfaces 16 are respectively provided at one end of the two connector bodies 11, and a group of optical fiber interfaces 16 consists of three optical fiber interfaces 16 which are arranged horizontally and equidistantly. A matching card slot 17 is provided in the middle of the bottom wall of the optical fiber interface 16. Interface contacts 18 are provided inside the two groups of optical fiber interfaces 16 at the facing ends, and the wiring work of the optical fiber coupler can be carried out through the optical fiber interfaces 16 at the front and rear ends.

[0023] A mating seat is provided at each of the two connector bodies 11 facing each other, and positioning holes 14 are provided between the front and rear side walls at the four corners of the mating seat. The four positioning holes 14 at the front end and the four positioning holes 14 at the rear end are symmetrically arranged. A mating mounting structure is provided at each of the two optical fiber coupling connectors 1 facing each other, and the mating mounting structure includes four positioning mounting holes 14. The same mounting bolt can be arranged in the two positioning mounting holes 14 at the same end. The single-layer positioning structure is used for positioning and installation, and the overall optical fiber coupler has good installation firmness after precise positioning and installation.

[0024] A matching card sleeve mechanism 2 is arranged on the outside of the optical fiber coupling connector 1, and an engaging groove 15 is opened on the outer wall of the middle part of the connector body 11. The matching card sleeve mechanism 2 includes a fixed sleeve 21 fixedly sleeved on the outer side of the engaging groove 15. A first elastic card 22 is fixedly connected to the middle of the upper and lower outer walls of the two fixing sleeves 21 separated from each other at one end, and a second elastic card 23 is fixedly connected to the middle of the outer walls of the two fixing sleeves 21 separated from each other at one end. The overall optical fiber coupler can be fitted and installed with multiple elastic cards on the matching card sleeve mechanism 2 at the front and rear ends of the optical fiber coupler for auxiliary positioning.

[0025] The working principle of the utility model is as follows: the wiring work of the optical fiber coupler can be carried out through the optical fiber interfaces 16 at the front and rear ends. The overall optical fiber coupler adopts a two-piece combined structure design. The rear end of the front optical fiber coupling connector 1 is provided with a connecting joint 12, and the connecting joint 12 is slidably embedded and installed in the connecting interface 13 provided at the front end of the rear optical fiber coupling connector 1. The two optical fiber coupling connectors 1 can be disassembled. After the interface of the optical fiber coupling connector 1 on one side is damaged, only the optical fiber coupling connector 1 needs to be replaced without being discarded as a whole. In addition, the two optical fiber coupling connectors 1 are respectively provided with a matching installation structure at one end facing each other, and the matching installation structure includes four positioning installation holes 14, and the same installation bolt can be arranged in the two positioning installation holes 14 at the same end. The difference is that the single-layer positioning structure is used for positioning installation, and the overall optical fiber coupler has good installation firmness after accurate positioning installation.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fiber optic coupler that can be accurately positioned and installed, comprising two fiber optic coupling connectors (1); Features: The two optical fiber coupling connectors (1) are arranged in a front-to-back combination, a matching sleeve mechanism (2) is arranged on the outside of the optical fiber coupling connector (1), and the optical fiber coupling connector (1) comprises a connector body (11); The two connector bodies (11) are arranged in a front-to-back symmetrical shape, a connection joint (12) is arranged at the center position of the rear end of the front connector body (11), and a connection interface (13) is arranged at the center position of the front end of the rear connector body (11); The connection joint (12) is slidably mounted in the connection interface (13), and a group of optical fiber interfaces (16) are respectively provided at one end of the two connector bodies (11) which are separated from each other.

2. The optical fiber coupler capable of precise positioning and installation according to claim 1, characterized in that: A matching seat is provided at each of the two facing ends of the two connector bodies (11), and positioning and mounting holes (14) are provided between the front and rear side walls at the four corners of the matching seat.

3. The optical fiber coupler capable of precise positioning and installation according to claim 2, characterized in that: The four positioning and mounting holes (14) at the front end and the four positioning and mounting holes (14) at the rear end are arranged in a front-to-back symmetric shape.

4. The optical fiber coupler capable of precise positioning and installation according to claim 1, characterized in that: A group of the optical fiber interfaces (16) consists of three optical fiber interfaces (16) which are arranged horizontally and equidistantly.

5. The optical fiber coupler capable of precise positioning and installation according to claim 1, characterized in that: A matching slot (17) is provided in the middle of the bottom wall of the optical fiber interface (16), and interface contacts (18) are provided inside the opposite ends of the two groups of optical fiber interfaces (16).

6. The optical fiber coupler capable of precise positioning and installation according to claim 1, characterized in that: An engaging groove (15) is provided on the outer side wall of the middle part of the connector body (11), and the matching sleeve mechanism (2) comprises a fixed sleeve (21) fixedly sleeved on the outer side of the engaging groove (15).

7. The optical fiber coupler capable of accurate positioning and installation according to claim 6, characterized in that: A first elastic card (22) is fixedly connected to the middle of the upper and lower outer walls of the two fixed sleeves (21) at one end, and a second elastic card (23) is fixedly connected to the middle of the upper and lower outer walls of the two fixed sleeves (21) at one end.

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