Multi-core optical fiber coupling device

Abstract

The utility model relates to a multi-core optical fiber coupling device, which comprises a shell, a coupling device is arranged in the shell, a plurality of optical fiber interfaces which are transversely arranged are arranged at one end of the shell, and an extension plate and a locking plate are arranged at one end, provided with the plurality of optical fiber interfaces, of the shell; the extension plate is positioned above the plurality of optical fiber interfaces; a positioning plate and an adjusting unit for adjusting the height of the positioning plate are arranged on the lower surface of the extension plate; the locking plate is located below the multiple optical fiber interfaces, one end of the locking plate is detachably connected with the extension plate, the other end of the locking plate is longitudinally hinged to the shell, and the locking plate is provided with a rubber sheet which is matched with the positioning plate to clamp optical fiber connectors connected to the multiple optical fiber interfaces; buffer protection is carried out on the conditions of pulling, collision and the like by means of clamping of the rubber sheet and the positioning plate, the influence caused by pulling and collision can be well reduced, the overall structure is simple, the clamping tightness adjusting operation is very convenient, and meanwhile the optical fiber clamping device has good applicability to optical fibers with different outer diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber communication, and more specifically to a multi-core optical fiber coupling device. Background Art

[0002] Multi-core fiber is a type of fiber that contains more than one core. With the development of the information society, the demand for data transmission is increasing, and traditional single-mode fiber can no longer meet the growing demand for data transmission. Therefore, multi-core fiber came into being, which can integrate multiple cores in the same fiber, thereby greatly improving the data transmission capacity of the fiber.

[0003] A multi-core fiber coupling device is used to couple multiple optical fibers with a single multi-core optical fiber. When connected, one end of the device is a multi-core optical fiber, and the other end is provided with multiple optical fiber interfaces connected to single-core optical fibers. A coupling device is provided inside the device. In actual application, after connection, the single-core optical fiber is easily affected by external interference such as pulling and collision, which affects the coupling effect. A multi-core fiber coupling device that can better avoid such problems is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a multi-core optical fiber coupling device in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A multi-core optical fiber coupling device is constructed, comprising a shell, a coupling device is arranged in the shell, and a plurality of optical fiber interfaces arranged transversely are arranged at one end of the shell, wherein an extension plate and a locking plate are arranged at the end of the shell where the plurality of optical fiber interfaces are arranged; the extension plate is located above the plurality of optical fiber interfaces; a positioning plate and an adjustment unit for adjusting the height of the positioning plate are arranged on the lower surface of the extension plate; the locking plate is located below the plurality of optical fiber interfaces, one end of the locking plate is detachably connected to the extension plate, and the other end is longitudinally hinged to the shell, and a rubber sheet is arranged on the locking plate to cooperate with the positioning plate to clamp the optical fiber connectors connected to the plurality of optical fiber interfaces.

[0007] The multi-core optical fiber coupling device described in the utility model, wherein the adjustment unit includes an adjustment screw that is rotatably inserted into the extension plate, and the positioning plate is provided with a screw hole that cooperates with the adjustment screw; a plurality of positioning posts are provided on the positioning plate, and the extension plate is provided with a positioning sleeve that cooperates with the positioning posts; the adjustment screw and the positioning posts are both arranged longitudinally.

[0008] In the multi-core optical fiber coupling device of the utility model, an adjusting handle is arranged at the upper end of the adjusting screw.

[0009] The multi-core optical fiber coupling device of the utility model is characterized in that the positioning sleeve is embedded in the extension plate.

[0010] In the multi-core optical fiber coupling device of the utility model, a spring is sleeved on the positioning column.

[0011] The multi-core optical fiber coupling device of the utility model, wherein the left and right side surfaces of the extension plate are both provided with card slots, and the locking plate is provided with two elastic card hooks corresponding to the card slots one by one.

[0012] In the multi-core optical fiber coupling device of the utility model, the left and right side surfaces of the extension plate are both provided with limiting blocks for limiting the elastic hook.

[0013] In the multi-core optical fiber coupling device of the utility model, an opening corresponding to the elastic hook is arranged at the lower end of the limit block.

[0014] The beneficial effect of the utility model is that: by using the device of the present application, after connecting multiple optical fibers to multiple optical fiber interfaces respectively, the locking plate is rotated and the locking plate is detachably connected to the extension plate, and then the positioning plate is moved downward by operating the adjustment unit, and the tail ends of the connectors of the multiple optical fibers are pressed against the rubber sheet, and the rubber sheet and the positioning plate are clamped to provide buffer protection against pulling, collision and the like, which can effectively reduce the impact of pulling and collision, the overall structure is simple, the clamping tightness adjustment operation is also very convenient, and it is also well applicable to optical fibers with different outer diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0016] Figure 1 This is a cross-sectional view of a multi-core optical fiber coupling device of a preferred embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the cooperation between the elastic hook and the slot of the multi-core optical fiber coupling device in a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be combined with the technical solution in the embodiments of the utility model for a clear and complete description. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The multi-core optical fiber coupling device of the preferred embodiment of the utility model is as follows Figure 1 See also Figure 2 , comprising a housing 1, a coupling device 11 is arranged in the housing 1, a plurality of optical fiber interfaces 10 arranged transversely are arranged at one end of the housing 1, an extension plate 2 and a locking plate 3 are arranged at the end of the housing 1 where the plurality of optical fiber interfaces 10 are arranged; the extension plate 2 is located above the plurality of optical fiber interfaces 10; a positioning plate 4 and an adjustment unit 5 for adjusting the height of the positioning plate are arranged on the lower surface of the extension plate 2; the locking plate 3 is located below the plurality of optical fiber interfaces 10, one end of the locking plate 3 is detachably connected to the extension plate 2, and the other end is longitudinally hinged to the housing 1, and a rubber sheet 7 is arranged on the locking plate 3 for cooperating with the positioning plate 4 to clamp the optical fiber connectors 6 connected to the plurality of optical fiber interfaces 10;

[0020] By using the device of the present application, after connecting multiple optical fibers to multiple optical fiber interfaces 10 respectively, the locking plate 3 is rotated and the locking plate 3 is detachably connected to the extension plate 2, and then the positioning plate 4 is moved downward by operating the adjustment unit 5, and the tail ends of the connectors of the multiple optical fibers are pressed against the rubber sheet 7. The rubber sheet 7 and the positioning plate 4 are clamped to provide buffer protection against pulling, collision, etc., which can effectively reduce the impact of pulling and collision. The overall structure is simple, and the clamping tightness adjustment operation is also very convenient. At the same time, it has good applicability to optical fibers with different outer diameters.

[0021] It should be noted that the above-mentioned rubber sheet 7 can also be replaced by other flexible clamping members such as silicone sheets, and the solution obtained by simple replacement based on this conventional means also belongs to the protection scope of this application.

[0022] Preferably, the adjustment unit 5 includes an adjustment screw 50 rotatably passed through the extension plate 2, and a screw hole 51 cooperating with the adjustment screw 50 is provided on the positioning plate 4; a plurality of positioning columns 52 are provided on the positioning plate 4, and a positioning sleeve 53 cooperating with the positioning column 52 is provided on the extension plate 2; the adjustment screw 50 and the positioning column 52 are both longitudinally arranged; with this structural design, the height of the positioning plate 4 can be quickly adjusted by rotating the adjustment screw 50, the structure is simple and the cost will be low.

[0023] Preferably, an adjustment handle 54 is provided at the upper end of the adjustment screw 50 to facilitate manual operation, a positioning sleeve 53 is embedded in the extension plate 2 to reduce the overall height, and a spring 55 is provided on the positioning column 52 to ensure the stability of the positioning plate 4 by relying on the elastic force of the spring.

[0024] Preferably, card slots 20 are provided on the left and right side surfaces of the extension plate 2, and two elastic hooks 30 corresponding to the card slots 20 are provided on the locking plate 3. The structure is simple and the disassembly and assembly are very convenient; preferably, limit blocks 21 for limiting the elastic hooks 30 can also be provided on the left and right side surfaces of the extension plate 2, and the lower end of the limit block 21 is provided with an opening 22 corresponding to the elastic hook 30 to reduce the external influence on the elastic hook 30.

[0025] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A multi-core optical fiber coupling device, comprising a housing, a coupling device is arranged in the housing, and a plurality of optical fiber interfaces arranged laterally are arranged at one end of the housing, characterized in that: An extension plate and a locking plate are provided at one end of the shell where the multiple fiber optic interfaces are provided; the extension plate is located above the multiple fiber optic interfaces; a positioning plate and an adjustment unit for adjusting the height of the positioning plate are provided on the lower surface of the extension plate; the locking plate is located below the multiple fiber optic interfaces, one end of the locking plate is detachably connected to the extension plate, and the other end is longitudinally hinged to the shell, and a rubber sheet is provided on the locking plate to cooperate with the positioning plate to clamp the fiber optic connectors connected to the multiple fiber optic interfaces.

2. The multi-core optical fiber coupling device according to claim 1, characterized in that: The adjustment unit includes an adjustment screw that is rotatably inserted into the extension plate, and a screw hole that cooperates with the adjustment screw is provided on the positioning plate; a plurality of positioning columns are provided on the positioning plate, and a positioning sleeve that cooperates with the positioning columns is provided on the extension plate; the adjustment screw and the positioning columns are both arranged longitudinally.

3. The multi-core optical fiber coupling device according to claim 2, characterized in that: An adjusting handle is arranged on the upper end of the adjusting screw.

4. The multi-core optical fiber coupling device according to claim 2, characterized in that: The positioning sleeve is embedded in the extension plate.

5. The multi-core optical fiber coupling device according to claim 2, characterized in that: A spring is sleeved on the positioning column.

6. The multi-core optical fiber coupling device according to any one of claims 1 to 5, characterized in that: The left and right surfaces of the extension plate are both provided with card slots, and the locking plate is provided with two elastic card hooks corresponding to the card slots one by one.

7. The multi-core optical fiber coupling device according to claim 6, characterized in that: Limiting blocks for limiting the elastic hooks are arranged on the left and right side surfaces of the extension plate.

8. The multi-core optical fiber coupling device according to claim 7, characterized in that: The lower end of the limit block is provided with an opening corresponding to the elastic hook.

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