A multimode fiber coupler

Abstract

The utility model provides a multimode fiber coupler, including fiber coupler main part, the both ends of fiber coupler main part are sleeved and have fiber optic jumper connector, still include: rotation structure, rotation structure sets up on fiber coupler main part. Through rotating and moving the rotation block to drive the clamping rod, make the clamping rod fixed housing extension inserts into the clamping groove, fix and limit the clamping block, it is convenient to better make fiber optic jumper connector be fixed and limit, thereby better avoid when being pulled, the connection of fiber optic jumper connector and fiber coupler main part appears loose, through the position of observation indicating block and indicating line, it is convenient to better make the limiting block can accurately correspond upper limit slot, through pushing rotation plate rotation, drive limiting block rotation, make limiting block clamping into limit slot, the rotation of rotation block is limited, it is convenient to avoid rotating rotation, cause the fixed of fiber optic jumper connector to loosen.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic coupler technology, and in particular to a multimode fiber optic coupler. Background Technology

[0002] An optical fiber coupler is a component used to split / combine or extend optical fiber links, belonging to the field of passive optical components. It ensures efficient coupling of optical energy from the transmitting fiber to the receiving fiber through precise alignment of the fiber end faces, thereby achieving efficient transmission and distribution of optical signals. A multimode optical fiber coupler is one type of optical fiber coupler.

[0003] When connecting two fiber optic patch cords, a multimode fiber coupler is typically used. The two patch cord connectors are inserted into the two ends of the multimode fiber coupler to achieve the connection. However, because the connection between the patch cord connectors and the multimode fiber coupler is a direct plug-in method, the connection between the connectors and the coupler is not stable enough. Under tension, the connection may loosen, leading to instability. Therefore, effectively preventing loosening of the connection between the patch cord connectors and the coupler body under tension is a crucial issue that needs to be addressed in the design of multimode fiber couplers. Utility Model Content

[0004] This invention addresses the problem of loosening of the connection between the fiber optic patch cord connector and the multimode fiber coupler when subjected to tension, by providing a multimode fiber coupler.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a multimode fiber optic coupler, including a fiber optic coupler body, with fiber optic patch cord connectors sleeved at both ends of the fiber optic coupler body, and further including:

[0007] A rotating structure is disposed on the main body of the fiber optic coupler;

[0008] A snap-fit ​​structure is provided on both sides of the rotating structure, which restricts the movement of the fiber optic patch cord connectors on both sides.

[0009] A limiting structure is provided on the rotating structure.

[0010] Preferably, a snap-fit ​​block is fixedly connected to the side wall of the fiber optic patch cord connector, and a snap-fit ​​groove is formed on the side wall of the snap-fit ​​block.

[0011] Preferably, the fiber optic coupler body has a plug slot on its side wall, and the plug slot and the snap-fit ​​block cooperate with each other.

[0012] Preferably, a fixing shell is fixedly connected to the front side wall of the fiber optic coupler body. The fixing shell has equal-distance limiting grooves on its side wall and equal-distance indicator lines on its side wall. The limiting grooves and indicator lines are both distributed in a circular pattern, and the positions of the limiting grooves and indicator lines correspond to each other.

[0013] In this technical solution, the indicator line can indicate the position of the limiting groove.

[0014] Preferably, the snap-fit ​​structure includes a movable frame, a fixed block, a connecting rod, and a snap-fit ​​rod. The movable frame is slidably connected inside the fixed shell. The movable frame has an "L"-shaped structure. Two fixed blocks are fixedly connected to the side wall of the movable frame. Two connecting rods are rotatably connected between the two fixed blocks. The other end of the two connecting rods is rotatably connected to a snap-fit ​​rod. The snap-fit ​​rod is slidably connected to the side wall of the fixed shell.

[0015] In this technical solution, the movement of the moving frame will push the connecting rod to move, and the movement of the connecting rod will engage the moving rod.

[0016] Preferably, the locking rod and the locking groove cooperate with each other.

[0017] In this technical solution, the locking rod extends out of the fixing shell and inserts into the locking slot. The locking rod fixes and restricts the locking block, thus fixing and restricting the fiber optic patch cord connector. This effectively prevents the connection between the fiber optic patch cord connector and the fiber optic coupler body from becoming loose when pulled.

[0018] Preferably, the sidewalls on opposite sides of the movable frame are provided with rotating toothed grooves.

[0019] Preferably, the rotating structure includes a rotating block, a rotating rod, a rotating gear, and an indicator block. One end of the rotating rod is rotatably connected to the side wall of the fiber optic coupler body, and the other end of the rotating rod passes through the side wall of the fixed shell and is fixedly connected to the rotating block. The indicator block is fixedly connected to the side wall of the rotating block, and the rotating gear is fixedly connected to the side wall of the rotating rod. The rotating gear meshes with the rotating tooth grooves on both sides.

[0020] In this technical solution, rotating the rotating block drives rotating rod to rotate, rotating rod drives rotating gear to rotate, rotating gear rotates in rotating tooth groove, driving the moving frames on both sides to move.

[0021] Preferably, the limiting structure includes a sliding groove, a threaded rod, a rotating plate, and a limiting block. The sliding groove is provided on the side wall of the rotating block. A cylindrical limiting block is slidably connected in the sliding groove. A threaded rod is fixedly connected to the side wall of the limiting block. The threaded rod is threadedly connected to the side wall of the rotating block. The other end of the threaded rod is fixedly connected to the rotating plate.

[0022] In this technical solution, the rotating plate is driven to rotate, which in turn drives the threaded rod to rotate, and the threaded rod drives the limiting block to rotate, so that the limiting block engages with the limiting groove, thereby limiting the rotation of the rotating block and preventing the fiber optic patch cord connector from becoming loose.

[0023] Preferably, the limiting block and the limiting groove cooperate with each other, the positions of the limiting block and the indicator block correspond to each other, the side wall of the rotating plate protrudes from the side wall of the rotating block, and anti-slip texture is provided on the side wall of the rotating plate.

[0024] In this technical solution, the anti-slip texture can increase the friction between the finger and the rotating plate, allowing the finger to better push the rotating plate to rotate.

[0025] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0026] The positive and progressive effects of this utility model are as follows:

[0027] 1. By rotating the rotating block, the rotating gear is driven to rotate, which in turn drives the moving frames on both sides to move. The moving frames push the locking rod to move, so that the locking rod extends out of the fixed housing and inserts into the locking slot. The locking rod fixes and restricts the locking block, which helps to fix and restrict the fiber optic patch cord connector, thereby preventing the connection between the fiber optic patch cord connector and the fiber optic coupler body from becoming loose when pulled.

[0028] 2. By observing the positions of the indicator block and indicator line, it is easier to ensure that the limiting block can accurately align with the limiting slot.

[0029] 3. By pushing the rotating plate to rotate, the rotating plate drives the threaded rod to rotate, and the threaded rod drives the limiting block to rotate, so that the limiting block is engaged in the limiting groove, thereby limiting the rotation of the rotating block and preventing the fiber optic patch cord connector from becoming loose. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0031] Figure 2 This is a schematic diagram of the overall internal structure of this utility model.

[0032] Figure 3 This is a top view of the internal structure of the present invention.

[0033] Figure 4 The whole of this utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0034] Figure 5 The whole of this utility model Figure 2 A magnified schematic diagram of the structure at point A.

[0035] Figure 6 The whole of this utility model Figure 3 A magnified schematic diagram of the structure at point B.

[0036] Explanation of reference numerals in the attached figures

[0037] 1. Fiber optic coupler body; 2. Fiber optic patch cord connector; 3. Snap-fit ​​block; 4. Fixed shell; 5. Rotating structure; 501. Rotating block; 502. Rotating rod; 503. Rotating gear; 504. Indicator block; 6. Snap-fit ​​structure; 601. Moving frame; 602. Fixed block; 603. Connecting rod; 604. Snap-fit ​​rod; 611. Rotating tooth groove; 7. Snap-fit ​​groove; 8. Insertion groove; 9. Restriction structure; 901. Sliding groove; 902. Threaded rod; 903. Rotating plate; 904. Restriction block; 10. Restriction groove; 11. Indicator line. Detailed Implementation

[0038] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0039] like Figure 1-6 As shown, a multimode fiber optic coupler includes a fiber optic coupler body 1, with fiber optic patch cord connectors 2 sleeved at both ends of the fiber optic coupler body 1, and further includes:

[0040] Rotating structure 5, which is disposed on the fiber optic coupler body 1;

[0041] The snap-fit ​​structure 6 is disposed on both sides of the rotating structure 5, and the snap-fit ​​structure 6 restricts the movement of the fiber optic patch cord connectors 2 on both sides.

[0042] A limiting structure 9 is provided on the rotating structure 5.

[0043] The side wall of the fiber optic patch cord connector 2 is fixedly connected to a snap-fit ​​block 3, and a snap-fit ​​groove 7 is provided on the side wall of the snap-fit ​​block 3.

[0044] The fiber optic coupler body 1 has a plug slot 8 on its side wall, and the plug slot 8 and the snap block 3 cooperate with each other.

[0045] A fixing shell 4 is fixedly connected to the front side wall of the fiber optic coupler body 1. A limiting groove 10 is provided at equal intervals on the side wall of the fixing shell 4. An indicator line 11 is engraved at equal intervals on the side wall of the fixing shell 4. The limiting groove 10 and the indicator line 11 are both distributed in a circular shape, and the positions of the limiting groove 10 and the indicator line 11 correspond to each other.

[0046] Indicator line 11 can indicate the position of the limiting groove 10.

[0047] The snap-fit ​​structure 6 includes a movable frame 601, a fixed block 602, a connecting rod 603, and a snap-fit ​​rod 604. The movable frame 601 is slidably connected inside the fixed shell 4. The movable frame 601 has an "L" shaped structure. Two fixed blocks 602 are fixedly connected to the side wall of the movable frame 601. Two connecting rods 603 are rotatably connected between the two fixed blocks 602. The other end of the two connecting rods 603 is rotatably connected to the snap-fit ​​rod 604. The snap-fit ​​rod 604 is slidably connected to the side wall of the fixed shell 4.

[0048] The movement of the movable frame 601 will push the connecting rod 603 to move, and the movement of the connecting rod 603 will engage the rod 604 to move.

[0049] The locking rod 604 and the locking groove 7 cooperate with each other.

[0050] The locking rod 604 extends out of the fixing shell 4 and inserts into the locking slot 7. The locking rod 604 fixes and restricts the locking block 3, thus fixing and restricting the fiber optic patch cord connector 2. This effectively prevents the connection between the fiber optic patch cord connector 2 and the fiber optic coupler body 1 from becoming loose when pulled.

[0051] Rotating toothed grooves 611 are provided on the side walls of opposite sides of the movable frame 601.

[0052] The rotating structure 5 includes a rotating block 501, a rotating rod 502, a rotating gear 503, and an indicator block 504. One end of the rotating rod 502 is rotatably connected to the side wall of the fiber optic coupler body 1, and the other end of the rotating rod 502 passes through the side wall of the fixed shell 4 and is fixedly connected to the rotating block 501. The indicator block 504 is fixedly connected to the side wall of the rotating block 501, and the rotating gear 503 is fixedly connected to the side wall of the rotating rod 502. The rotating gear 503 meshes with the rotating tooth grooves 611 on both sides.

[0053] Rotating the rotating block 501 causes the rotating rod 502 to rotate, which in turn causes the rotating gear 503 to rotate. The rotating gear 503 rotates within the rotating tooth groove 611, thereby moving the movable frames 601 on both sides.

[0054] The limiting structure 9 includes a sliding groove 901, a threaded rod 902, a rotating plate 903, and a limiting block 904. The sliding groove 901 has a side wall on which the rotating block 501 is located. A cylindrical limiting block 904 is slidably connected inside the sliding groove 901. A threaded rod 902 is fixedly connected to the side wall of the limiting block 904. The threaded rod 902 is threadedly connected to the side wall of the rotating block 501. The other end of the threaded rod 902 is fixedly connected to the rotating plate 903.

[0055] The rotating plate 903 is pushed to rotate, which drives the threaded rod 902 to rotate. The threaded rod 902 drives the limiting block 904 to rotate, so that the limiting block 904 is engaged in the limiting groove 10, which restricts the rotation of the rotating block 501, thereby preventing the fiber optic patch cord connector 2 from loosening.

[0056] The limiting block 904 and the limiting groove 10 cooperate with each other, and the positions of the limiting block 904 and the indicator block 504 correspond to each other. The side wall of the rotating plate 903 protrudes from the side wall of the rotating block 501, and anti-slip texture is provided on the side wall of the rotating plate 903.

[0057] The anti-slip texture increases the friction between the fingers and the rotating plate 903, allowing the fingers to better push the rotating plate 903 to rotate.

[0058] When using this invention, to connect the fiber optic coupler body 1 and the fiber optic patch cord connector 2, the fiber optic patch cord connector 2 is inserted into both ends of the fiber optic coupler body 1. The locking block 3 on the fiber optic patch cord connector 2 is then inserted into the insertion slot 8 on the fiber optic coupler body 1. After the fiber optic patch cord connector 2 is fully inserted, the rotating block 501 is rotated. The rotating block 501 drives the rotating rod 502 to rotate, and the rotating rod 502 drives the rotating gear 503 to rotate. The rotating gear 503 rotates in the rotating tooth groove 611, driving the moving frames 601 on both sides to move. The moving frames 601 push the connecting rod 603 to move, and the moving connecting rod 603 moves the locking rod 604, so that the locking rod 604 extends out of the fixing shell 4 and inserts into the locking slot 7. The locking rod 604 fixes and restricts the locking block 3, so that the fiber optic patch cord connector 2 is fixed and restricted, thereby better avoiding the problem of loosening at the connection between the fiber optic patch cord connector 2 and the fiber optic coupler body 1 when pulled.

[0059] After the connector is properly connected, observe the position of the indicator block 504 and the indicator line 11. When the indicator block 504 points exactly to a certain indicator line 11, it means that the limiting block 904 is facing the limiting slot 10. If the indicator block 504 is not facing the indicator line 11, the rotating block 501 can be rotated for fine adjustment so that the indicator block 504 points to the nearest indicator line 11. Although the fine adjustment will cause the connector rod 604 to move to a certain extent, the movement distance is small, so the connector rod 604 will not disengage from the connector slot 7. Therefore, the fine adjustment will not affect the fixation of the fiber optic patch cord connector 2. Then push the rotating plate 903 to rotate. The rotating plate 903 drives the threaded rod 902 to rotate, and the threaded rod 902 drives the limiting block 904 to rotate, so that the limiting block 904 engages with the limiting slot 10, thereby limiting the rotation of the rotating block 501 and preventing the fiber optic patch cord connector 2 from becoming loose.

[0060] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A multimode fiber coupler comprising a fiber coupler body (1), both ends of the fiber coupler body (1) are sleeved with fiber jumper connectors (2), characterized in that, Also includes: Rotating structure (5), the rotating structure (5) is disposed on the fiber optic coupler body (1); A snap-fit ​​structure (6) is provided on both sides of the rotating structure (5), and the snap-fit ​​structure (6) restricts the movement of the fiber optic patch cord connectors (2) on both sides. A limiting structure (9) is provided on the rotating structure (5).

2. The multimode fiber coupler of claim 1, wherein: The side wall of the fiber optic patch cord connector (2) is fixedly connected to a snap-fit ​​block (3), and a snap-fit ​​groove (7) is provided on the side wall of the snap-fit ​​block (3).

3. The multimode fiber coupler of claim 1, wherein: The fiber optic coupler body (1) has a plug slot (8) on its side wall, and the plug slot (8) and the snap block (3) cooperate with each other.

4. The multimode fiber coupler of claim 1, wherein: A fixed shell (4) is fixedly connected to the front side wall of the fiber optic coupler body (1). A limiting groove (10) is provided at equal intervals on the side wall of the fixed shell (4). An indicator line (11) is engraved at equal intervals on the side wall of the fixed shell (4). The limiting groove (10) and the indicator line (11) are both distributed in a circular shape. The positions of the limiting groove (10) and the indicator line (11) correspond to each other.

5. The multimode fiber coupler of claim 1, wherein: The snap-fit ​​structure (6) includes a movable frame (601), a fixed block (602), a connecting rod (603), and a snap-fit ​​rod (604). The movable frame (601) is slidably connected inside the fixed shell (4). The movable frame (601) has an "L" shaped structure. Two fixed blocks (602) are fixedly connected to the side wall of the movable frame (601). Two connecting rods (603) are rotatably connected between the two fixed blocks (602). The other end of the two connecting rods (603) is rotatably connected to the snap-fit ​​rod (604). The snap-fit ​​rod (604) is slidably connected to the side wall of the fixed shell (4).

6. The multimode fiber coupler of claim 5, wherein: The locking rod (604) and the locking groove (7) cooperate with each other.

7. The multimode fiber coupler of claim 5, wherein: Rotating toothed grooves (611) are provided on the side walls of opposite sides of the movable frame (601).

8. The multimode fiber coupler of claim 1, wherein: The rotating structure (5) includes a rotating block (501), a rotating rod (502), a rotating gear (503), and an indicator block (504). One end of the rotating rod (502) is rotatably connected to the side wall of the fiber optic coupler body (1). The other end of the rotating rod (502) passes through the side wall of the fixed shell (4) and is fixedly connected to the rotating block (501). The indicator block (504) is fixedly connected to the side wall of the rotating block (501). The rotating gear (503) is fixedly connected to the side wall of the rotating rod (502). The rotating gear (503) meshes with the rotating tooth grooves (611) on both sides.

9. The multimode fiber coupler of claim 1, wherein: The limiting structure (9) includes a sliding groove (901), a threaded rod (902), a rotating plate (903), and a limiting block (904). The sliding groove (901) has a side wall on which the rotating block (501) is located. A cylindrical limiting block (904) is slidably connected inside the sliding groove (901). A threaded rod (902) is fixedly connected to the side wall of the limiting block (904). The threaded rod (902) is threadedly connected to the side wall of the rotating block (501). The other end of the threaded rod (902) is fixedly connected to the rotating plate (903).

10. The multimode fiber coupler of claim 9, wherein: The limiting block (904) and the limiting groove (10) match with each other, the limiting block (904) corresponds to the position of the indicating block (504), the side wall of the rotating plate (903) protrudes the side wall of the rotating block (501), and the side wall of the side edge of the rotating plate (903) is provided with anti-skid lines.

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