Optical fiber array coupling device

Abstract

The utility model discloses an optical fiber array coupling device, which belongs to the technical field of coupling devices and is characterized in that the middle of a coupling device base is provided with a glue injection groove, the inner wall of the glue injection groove is fixedly connected with a positioning plate, the surface of the coupling device base is provided with symmetrical exhaust surfaces and threaded holes, and an extrusion cover is fastened on the surface of the coupling device base through screws; the surface of the extrusion cover is provided with a counterbore and a guide groove which are symmetrical, the bottom of the guide groove is provided with a glue injection hole, and one end of the glue injection hole is provided with a sealing plug. The optical fiber array coupling device can automatically seal the surface of an optical fiber after the extrusion cover is fixed through the array groove and the sealing gasket, so that the use convenience is greatly improved; and through the glue injection hole formed in the extrusion cover and the exhaust surface arranged on the coupling device base, the glue injection pressure can be greatly reduced, and meanwhile, the glue injection uniformity and the exhaust effect are improved, so that the coupling quality of the optical fiber array is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coupling devices, and more specifically to an optical fiber array coupling device. Background Art

[0002] Optical fiber is the abbreviation of optical fiber, which is a fiber made of glass or plastic that can be used as a light transmission tool. The transmission principle is "total reflection of light".

[0003] Fiber array components require the use of coupling devices to connect multiple optical fibers. However, the coupling device is inconvenient to seal the optical fiber surface during use, and its glue injection uniformity is poor, which may reduce the coupling quality of the fiber array.

[0004] For example, a fiber array coupling device disclosed in publication number CN219915981U includes a base, a cover plate, a pressure plate, a sealing plug, a guide block, a guide groove, a baffle, a glue injection groove and connecting screws; the cover plate is placed on the left side of the base.

[0005] It can be seen from the above-mentioned public scheme that the glue injection groove is located on the side of the base. When the optical fibers of the array are coupled by glue injection, it may cause poor exhaust or cause air to remain and form bubbles, thereby reducing the coupling quality of the optical fiber array. In addition, the structure of the glue guide groove and the positioning groove makes it difficult to seal the surface of the optical fiber. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide an optical fiber array coupling device, which can automatically seal the surface of the optical fiber after the extrusion cover is fixed by means of the array groove and the sealing gasket, thereby greatly improving the convenience of use, and the injection pressure can be greatly reduced by means of the glue injection holes provided on the extrusion cover and the exhaust surface provided on the base of the coupling device, while improving the uniformity of the glue injection and the exhaust effect, thereby improving the coupling quality of the optical fiber array.

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] An optical fiber array coupling device comprises a coupling device base, a glue injection groove is provided at the middle position of the coupling device base, a positioning plate is fixedly connected to the inner wall of the glue injection groove, a symmetrical exhaust surface and a threaded hole are provided on the surface of the coupling device base, an extrusion cover is fastened to the surface of the coupling device base by screws, a symmetrical countersunk hole and a guide groove are provided on the surface of the extrusion cover, a glue injection hole is provided at the bottom of the guide groove, a sealing plug is provided at one end of the glue injection hole, a symmetrical first array groove and a second array groove are provided at both ends of the coupling device base and the extrusion cover, a first sealing pad and a second sealing pad are fixedly connected to the inner walls of the first array groove and the second array groove, respectively, and the first sealing pad and the second sealing pad surround a sealing hole, the optical fiber array coupling device can automatically seal the optical fiber surface after the extrusion cover is fixed by the provided array groove and the sealing pad, thereby greatly improving the convenience of use, and the glue injection pressure can be greatly reduced by the glue injection hole provided on the extrusion cover and the exhaust surface provided on the coupling device base, while improving the glue injection uniformity and exhaust effect, thereby improving the coupling quality of the optical fiber array.

[0009] Furthermore, the first sealing pad and the second sealing pad are both semicircular in shape, the surfaces of the first sealing pad and the second sealing pad are both provided with arc grooves, the first sealing pad and the second sealing pad are both made of elastic sealing material, and the first sealing pad and the second sealing pad can squeeze and seal the surface of the optical fiber.

[0010] Furthermore, positioning grooves are provided on the surface of the positioning plate, the number of the positioning grooves is the same as the number of the sealing holes, the shape of the positioning grooves is semicircular, and grooves are provided at both ends of the positioning plate. The positioning grooves facilitate the positioning of the optical fiber part inside the glue injection groove, and the grooves facilitate the communication inside the glue injection groove.

[0011] Furthermore, an air avoidance groove is provided in the middle of the surface of the extrusion cover, and extrusion surfaces are provided on the sides of the air avoidance groove. The surface of the extrusion surface contacts and extrude the surface of the exhaust surface. The exhaust surface is a wavy surface, which facilitates the discharge of air inside the glue injection groove while being able to seal the glue injection.

[0012] Furthermore, the countersunk hole and the threaded hole are concentric and coaxial, and the countersunk depth of the countersunk hole is greater than the thickness of the nut of the screw, so as to prevent one end of the screw from protruding out of the surface of the extrusion cover.

[0013] Furthermore, the depth of the guide groove is greater than the protruding height of the sealing plug, thereby preventing one end of the sealing plug from protruding out of the surface of the compression cover.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] (1) The present solution provides an array groove and a sealing gasket, which can automatically seal the surface of the optical fiber after the extrusion cover is fixed, thereby greatly improving the convenience of use.

[0016] (2) This solution can greatly reduce the injection pressure by providing the injection holes on the extrusion cover and the exhaust surface provided on the base of the coupling device, while improving the injection uniformity and exhaust effect, thereby improving the coupling quality of the optical fiber array. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a top view of the base structure of the coupling device of the utility model;

[0019] Figure 3 It is a top view of the extruded cover structure of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1 coupling device base, 11 exhaust surface, 12 glue injection groove, 13 first sealing gasket, 14 arc groove, 15 threaded hole, 16 first array groove, 2 extrusion cover, 21 countersunk hole, 22 extrusion surface, 23 guide groove, 24 glue injection hole, 25 second array groove, 26 second sealing gasket, 3 sealing hole, 4 sealing plug, 5 positioning plate, 51 positioning groove, 52 groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] See also Figure 1-3The optical fiber array coupling device comprises a coupling device base 1, a glue injection groove 12 is arranged in the middle position of the coupling device base 1, the glue injection groove 12 is convenient for coupling of the array optical fiber after glue injection, a positioning plate 5 is fixedly connected to the inner wall of the glue injection groove 12, the positioning plate 5 can leave a glue injection gap between the optical fiber surface inside the glue injection groove 12 and the bottom of the glue injection groove 12, and prevent the optical fiber from moving, the surface of the coupling device base 1 is provided with a symmetrical exhaust surface 11 and a threaded hole 15, the exhaust surface 11 improves the exhaust efficiency and can reduce the glue injection pressure, the surface of the coupling device base 1 is fastened with an extrusion cover 2 by screws, and the surface of the extrusion cover 2 is provided with There are symmetrical countersunk holes 21 and guide grooves 23, and a glue injection hole 24 is provided at the bottom of the guide groove 23. The glue injection hole 24 is located in the middle of the glue injection groove 12, so as to facilitate the glue injection to quickly and evenly fill the glue injection groove 12. A sealing plug 4 is provided at one end of the glue injection hole 24. The two ends of the coupling device base 1 and the extrusion cover 2 are respectively provided with symmetrical first array grooves 16 and second array grooves 25. The inner walls of the first array groove 16 and the second array groove 25 are respectively fixedly connected with the first sealing gasket 13 and the second sealing gasket 26. The first sealing gasket 13 and the second sealing gasket 26 surround a sealing hole 3, and the sealing hole 3 facilitates the array optical fiber to pass through the coupling device.

[0025] The first sealing gasket 13 and the second sealing gasket 26 are both semicircular in shape, and the surfaces of the first sealing gasket 13 and the second sealing gasket 26 are both provided with an arc groove 14. The first sealing gasket 13 and the second sealing gasket 26 are both made of elastic sealing material. The first sealing gasket 13 and the second sealing gasket 26 can extrude and seal the surface of the optical fiber. The countersunk hole 21 and the threaded hole 15 are concentric and coaxial. The countersunk depth of the countersunk hole 21 is greater than the thickness of the nut of the screw to prevent one end of the screw from protruding from the surface of the extrusion cover 2. The depth of the guide groove 23 is greater than the protruding height of the sealing plug 4 to prevent one end of the sealing plug 4 from protruding from the surface of the extrusion cover 2.

[0026] In this embodiment, the array grooves and the sealing gaskets are provided so that the surface of the optical fiber can be automatically sealed after the extrusion cover 2 is fixed, thereby greatly improving the convenience of use.

[0027] Example 2

[0028] See also Figure 1-3The optical fiber array coupling device comprises a coupling device base 1, a glue injection groove 12 is arranged in the middle position of the coupling device base 1, the glue injection groove 12 is convenient for coupling of the array optical fiber after glue injection, a positioning plate 5 is fixedly connected to the inner wall of the glue injection groove 12, the positioning plate 5 can leave a glue injection gap between the optical fiber surface inside the glue injection groove 12 and the bottom of the glue injection groove 12, and prevent the optical fiber from moving, the surface of the coupling device base 1 is provided with a symmetrical exhaust surface 11 and a threaded hole 15, the exhaust surface 11 improves the exhaust efficiency and can reduce the glue injection pressure, the surface of the coupling device base 1 is fastened with an extrusion cover 2 by screws, and the surface of the extrusion cover 2 is provided with There are symmetrical countersunk holes 21 and guide grooves 23, and a glue injection hole 24 is provided at the bottom of the guide groove 23. The glue injection hole 24 is located in the middle of the glue injection groove 12, so as to facilitate the glue injection to quickly and evenly fill the glue injection groove 12. A sealing plug 4 is provided at one end of the glue injection hole 24. The two ends of the coupling device base 1 and the extrusion cover 2 are respectively provided with symmetrical first array grooves 16 and second array grooves 25. The inner walls of the first array groove 16 and the second array groove 25 are respectively fixedly connected with the first sealing gasket 13 and the second sealing gasket 26. The first sealing gasket 13 and the second sealing gasket 26 surround a sealing hole 3, and the sealing hole 3 facilitates the array optical fiber to pass through the coupling device.

[0029] The surface of the positioning plate 5 is provided with positioning grooves 51, and the number of the positioning grooves 51 is the same as the number of the sealing holes 3. The shape of the positioning grooves 51 is semicircular, and grooves 52 are provided at both ends of the positioning plate 5. The positioning grooves 51 are convenient for positioning the optical fiber part inside the glue injection groove 12, and the grooves 52 are convenient for communicating with the inside of the glue injection groove 12. An air avoidance groove is provided in the middle position of the surface of the extrusion cover 2, and extrusion surfaces 22 are provided on the sides around the air avoidance groove. The surface of the extrusion surface 22 contacts and extrude the surface of the exhaust surface 11. The exhaust surface 11 is a wavy surface, which facilitates the discharge of air inside the glue injection groove 12 while the glue injection can be sealed.

[0030] In this embodiment, the injection hole 24 provided on the extrusion cover 2 and the exhaust surface 11 provided on the coupling device base 1 can greatly reduce the injection pressure, improve the injection uniformity and exhaust effect, and thus improve the coupling quality of the optical fiber array.

[0031] When the optical fiber array coupling device is in use, the optical fiber is first clamped with the arc groove 14 of the first sealing gasket 13 to complete the optical fiber array, and then the extrusion cover 2 is closed and then tightened by screws, and then glue is injected through the glue injection hole 24, and the glue is filled into the glue injection groove 12, and the internal air is quickly discharged through the exhaust surfaces 11 on both sides, thereby completing the glue injection coupling. Through the set array groove and sealing gasket, the optical fiber surface can be automatically sealed after the extrusion cover 2 is fixed, which greatly improves the convenience of use, and through the glue injection hole 24 set on the extrusion cover 2 and the exhaust surface 11 set on the coupling device base 1, the glue injection pressure can be greatly reduced, and at the same time, the glue injection uniformity and exhaust effect are improved, thereby improving the coupling quality of the optical fiber array.

[0032] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An optical fiber array coupling device, comprising a coupling device base (1), characterized in that: A glue injection groove (12) is provided in the middle of the coupling device base (1), and a positioning plate (5) is fixedly connected to the inner wall of the glue injection groove (12). A symmetrical exhaust surface (11) and a threaded hole (15) are provided on the surface of the coupling device base (1). An extrusion cover (2) is fastened to the surface of the coupling device base (1) by screws. The surface of the extrusion cover (2) is provided with symmetrical countersunk holes (21) and guide grooves (23). A glue injection hole (24) is provided at the bottom of the guide groove (23). A sealing plug (4) is provided at one end of the glue injection hole (24). A symmetrical first array groove (16) and a second array groove (25) are respectively provided at both ends of the coupling device base (1) and the extrusion cover (2). The inner walls of the first array groove (16) and the second array groove (25) are respectively fixedly connected to a first sealing pad (13) and a second sealing pad (26). The first sealing pad (13) and the second sealing pad (26) surround the sealing hole (3).

2. The optical fiber array coupling device according to claim 1, characterized in that: The first sealing pad (13) and the second sealing pad (26) are both semicircular in shape, arc-shaped grooves (14) are provided on the surfaces of the first sealing pad (13) and the second sealing pad (26), and the first sealing pad (13) and the second sealing pad (26) are both made of elastic sealing material.

3. The optical fiber array coupling device according to claim 1, characterized in that: The surface of the positioning plate (5) is provided with positioning grooves (51), the number of the positioning grooves (51) is the same as the number of the sealing holes (3), the positioning grooves (51) are semicircular in shape, and grooves (52) are provided at both ends of the positioning plate (5).

4. The optical fiber array coupling device according to claim 1, characterized in that: A void avoidance groove is provided in the middle of the surface of the extrusion cover (2), and extrusion surfaces (22) are provided around the sides of the void avoidance groove. The surface of the extrusion surface (22) contacts and extrudes the surface of the exhaust surface (11).

5. The optical fiber array coupling device according to claim 1, characterized in that: The countersunk hole (21) and the threaded hole (15) are coaxial and concentric, and the countersunk depth of the countersunk hole (21) is greater than the thickness of the nut of the screw.

6. The optical fiber array coupling device according to claim 1, characterized in that: The depth of the guide groove (23) is greater than the protruding height of the sealing plug (4).

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